Social Vulnerability Index Recalculation
The Social Vulnerability Index Recalculation is based on the important work of the federal Centers for Disease Control. With the future of that index in doubt, the same federal datasets and methodologies were used to carry the index forward.
The most recent SVI uses the 2022 American Communities Survey as its base. This recalculation matches the 2022 baseline 100 percent. The 2022 methodologies form the basis of the updated calculations for subsequent ACS vintages. This platform will run updates on all new ACS releases.
Should the SVI be updated with changed methodologies, this platform will update to match, while preserving the 2022 methodologies for comparison purposes.
Naugatuck Valley Pla — Social Vulnerability Index
Unofficial CDC-method recomputation, 2020–2024 ACS 5-year
Naugatuck Valley Pla — Social Vulnerability Index by census tract
Where this is
Shading: Overall SVI Percentile
Lower (1 to 19)Lower-middle (21 to 35)Middle (35 to 59)Upper-middle (62 to 80)Higher (80 to 99)
Each unit is shaded by its Overall SVI Percentile value and grouped into equal-count bands (quantiles) against the other units shown — lighter = lower, darker = higher. It ranks position among the units in view; it does not grade places, and the ranges shift with which units are shown.
The map is bounded to this parent geography — it shows the selected unit among its own siblings only, the same depth rule the drill-down uses. Shading ranks position on the measure among the units shown; it does not grade places.
Click a tract to see its overall percentile and theme scores.
Median tract: 48th percentile (among all U.S. tracts).
These tracts span the 1st percentile to the 99th percentile. The width of that range is the internal disparity.
Widest spread across these tracts: Socioeconomic Status — this theme most separates the higher- and lower-ranked tracts here.
The SVI ranks each tract's position relative to a comparison set; it is not averaged into one number for the area, because percentiles do not average meaningfully. The distribution — median, range, and shape below — is the summary.
Well above the median — 20 tracts (80th–100th percentile)
Tract 3508.00 (pop. 5,981) — 99th percentile — Well above the median CDC-based flag ≥ 90th percentile
Driven by Socioeconomic Status (well above), Household Characteristics (well above), Racial & Ethnic Minority Status (well above) and Housing Type & Transportation (well above).
Tract 4061.00 (pop. 3,903) — 99th percentile — Well above the median CDC-based flag ≥ 90th percentile
Driven by Socioeconomic Status (well above), Household Characteristics (well above), Racial & Ethnic Minority Status (above) and Housing Type & Transportation (well above).
Tract 3502.00 (pop. 4,142) — 99th percentile — Well above the median CDC-based flag ≥ 90th percentile
Driven by Socioeconomic Status (well above), Household Characteristics (well above), Racial & Ethnic Minority Status (well above) and Housing Type & Transportation (well above).
Tract 3501.01 (pop. 4,222) — 97th percentile — Well above the median CDC-based flag ≥ 90th percentile
Driven by Socioeconomic Status (well above), Household Characteristics (well above), Racial & Ethnic Minority Status (well above) and Housing Type & Transportation (well above).
Tract 3510.00 (pop. 4,543) — 97th percentile — Well above the median CDC-based flag ≥ 90th percentile
Driven by Socioeconomic Status (well above), Household Characteristics (well above), Racial & Ethnic Minority Status (well above) and Housing Type & Transportation (above).
Tract 3505.00 (pop. 2,818) — 97th percentile — Well above the median CDC-based flag ≥ 90th percentile
Driven by Socioeconomic Status (well above), Household Characteristics (well above), Racial & Ethnic Minority Status (well above) and Housing Type & Transportation (above).
Tract 3512.00 (pop. 4,513) — 96th percentile — Well above the median CDC-based flag ≥ 90th percentile
Driven by Socioeconomic Status (well above), Household Characteristics (well above) and Racial & Ethnic Minority Status (well above); near the median on Housing Type & Transportation.
Tract 3527.02 (pop. 6,258) — 95th percentile — Well above the median CDC-based flag ≥ 90th percentile
Driven by Socioeconomic Status (well above), Household Characteristics (well above), Racial & Ethnic Minority Status (above) and Housing Type & Transportation (above).
Tract 4057.00 (pop. 2,099) — 94th percentile — Well above the median CDC-based flag ≥ 90th percentile
Driven by Socioeconomic Status (well above), Household Characteristics (well above), Racial & Ethnic Minority Status (above) and Housing Type & Transportation (well above).
Tract 3522.00 (pop. 2,995) — 93rd percentile — Well above the median CDC-based flag ≥ 90th percentile
Driven by Socioeconomic Status (well above), Household Characteristics (well above), Racial & Ethnic Minority Status (well above) and Housing Type & Transportation (above).
Tract 3503.00 (pop. 2,350) — 93rd percentile — Well above the median CDC-based flag ≥ 90th percentile
Driven by Socioeconomic Status (well above), Household Characteristics (well above) and Racial & Ethnic Minority Status (well above); near the median on Housing Type & Transportation.
Tract 3504.00 (pop. 2,596) — 93rd percentile — Well above the median CDC-based flag ≥ 90th percentile
Driven by Socioeconomic Status (well above), Household Characteristics (well above), Racial & Ethnic Minority Status (well above) and Housing Type & Transportation (above).
Tract 3527.01 (pop. 3,199) — 93rd percentile — Well above the median CDC-based flag ≥ 90th percentile
Driven by Socioeconomic Status (well above), Household Characteristics (well above), Racial & Ethnic Minority Status (above) and Housing Type & Transportation (well above).
Tract 3515.00 (pop. 4,856) — 91st percentile — Well above the median CDC-based flag ≥ 90th percentile
Driven by Socioeconomic Status (well above), Household Characteristics (well above) and Racial & Ethnic Minority Status (above); near the median on Housing Type & Transportation.
Tract 3511.00 (pop. 4,935) — 89th percentile — Well above the median
Driven by Socioeconomic Status (well above), Household Characteristics (well above) and Racial & Ethnic Minority Status (well above); near the median on Housing Type & Transportation.
Tract 3516.01 (pop. 3,881) — 87th percentile — Well above the median
Driven by Socioeconomic Status (well above), Household Characteristics (well above) and Racial & Ethnic Minority Status (above); near the median on Housing Type & Transportation.
Tract 3513.00 (pop. 5,188) — 86th percentile — Well above the median
Driven by Socioeconomic Status (above), Household Characteristics (well above) and Racial & Ethnic Minority Status (well above); near the median on Housing Type & Transportation.
Tract 3509.00 (pop. 2,298) — 84th percentile — Well above the median
Driven by Socioeconomic Status (well above), Household Characteristics (well above) and Racial & Ethnic Minority Status (well above); near the median on Housing Type & Transportation.
Tract 3525.00 (pop. 3,493) — 83rd percentile — Well above the median
Driven by Socioeconomic Status (well above), Household Characteristics (well above) and Racial & Ethnic Minority Status (above); near the median on Housing Type & Transportation.
Tract 3514.00 (pop. 4,772) — 80th percentile — Well above the median
Driven by Socioeconomic Status (above), Household Characteristics (well above) and Racial & Ethnic Minority Status (well above); near the median on Housing Type & Transportation.
Above the median — 20 tracts (60th–80th percentile)
Tract 1254.00 (pop. 3,665) — 80th percentile — Above the median
Driven by Socioeconomic Status (well above), Household Characteristics (well above) and Racial & Ethnic Minority Status (above); near the median on Housing Type & Transportation.
Tract 4060.01 (pop. 4,462) — 80th percentile — Above the median
Driven by Household Characteristics (well above), Racial & Ethnic Minority Status (above) and Housing Type & Transportation (above); near the median on Socioeconomic Status.
Tract 3528.00 (pop. 5,801) — 79th percentile — Above the median
Driven by Socioeconomic Status (well above), Household Characteristics (well above) and Racial & Ethnic Minority Status (above); below the median on Housing Type & Transportation.
Tract 3521.00 (pop. 4,460) — 79th percentile — Above the median
Driven by Socioeconomic Status (above), Household Characteristics (well above) and Racial & Ethnic Minority Status (above); near the median on Housing Type & Transportation.
Tract 1102.02 (pop. 5,242) — 76th percentile — Above the median
Driven by Socioeconomic Status (above), Household Characteristics (well above) and Housing Type & Transportation (above); near the median on Racial & Ethnic Minority Status.
Tract 3524.00 (pop. 3,761) — 76th percentile — Above the median
Driven by Household Characteristics (well above), Racial & Ethnic Minority Status (above) and Housing Type & Transportation (above); near the median on Socioeconomic Status.
Tract 1301.01 (pop. 5,104) — 73rd percentile — Above the median
Driven by Household Characteristics (above) and Housing Type & Transportation (well above); near the median on Socioeconomic Status and Racial & Ethnic Minority Status.
Tract 1202.00 (pop. 5,799) — 72nd percentile — Above the median
Driven by Socioeconomic Status (above), Household Characteristics (above) and Racial & Ethnic Minority Status (above); near the median on Housing Type & Transportation.
Tract 3517.00 (pop. 2,962) — 72nd percentile — Above the median
Driven by Socioeconomic Status (well above), Household Characteristics (above) and Racial & Ethnic Minority Status (well above); below the median on Housing Type & Transportation.
Tract 4056.00 (pop. 8,016) — 72nd percentile — Above the median
Driven by Socioeconomic Status (above) and Household Characteristics (well above); near the median on Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 3523.00 (pop. 2,847) — 71st percentile — Above the median
Driven by Socioeconomic Status (above), Racial & Ethnic Minority Status (well above) and Housing Type & Transportation (above); below the median on Household Characteristics.
Tract 3518.00 (pop. 4,124) — 70th percentile — Above the median
Driven by Household Characteristics (above), Racial & Ethnic Minority Status (above) and Housing Type & Transportation (above); near the median on Socioeconomic Status.
Tract 3516.02 (pop. 5,812) — 68th percentile — Above the median
Driven by Socioeconomic Status (above), Household Characteristics (well above) and Racial & Ethnic Minority Status (above); below the median on Housing Type & Transportation.
Tract 1102.01 (pop. 5,238) — 67th percentile — Above the median
Driven by Socioeconomic Status (above), Household Characteristics (above) and Racial & Ethnic Minority Status (above); near the median on Housing Type & Transportation.
Tract 3451.00 (pop. 6,435) — 65th percentile — Above the median
Driven by Household Characteristics (above); near the median on Socioeconomic Status, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 1252.00 (pop. 5,616) — 63rd percentile — Above the median
Driven by Socioeconomic Status (well above) and Racial & Ethnic Minority Status (above); near the median on Housing Type & Transportation; below the median on Household Characteristics.
Tract 3526.00 (pop. 4,476) — 63rd percentile — Above the median
Driven by Household Characteristics (well above); near the median on Socioeconomic Status, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 4054.02 (pop. 4,117) — 63rd percentile — Above the median
Driven by Household Characteristics (above) and Housing Type & Transportation (above); near the median on Socioeconomic Status and Racial & Ethnic Minority Status.
Tract 3454.00 (pop. 6,814) — 62nd percentile — Above the median
Driven by Household Characteristics (above) and Housing Type & Transportation (above); near the median on Racial & Ethnic Minority Status; below the median on Socioeconomic Status.
Tract 3452.01 (pop. 8,068) — 62nd percentile — Above the median
Driven by Household Characteristics (well above), Racial & Ethnic Minority Status (above) and Housing Type & Transportation (above); below the median on Socioeconomic Status.
Near the median — 15 tracts (40th–60th percentile)
Tract 4052.00 (pop. 4,121) — 59th percentile — Near the median
Driven by Housing Type & Transportation (well above); near the median on Racial & Ethnic Minority Status; below the median on Socioeconomic Status and Household Characteristics.
Tract 1103.02 (pop. 3,255) — 59th percentile — Near the median
Driven by Household Characteristics (above) and Housing Type & Transportation (well above); near the median on Racial & Ethnic Minority Status; below the median on Socioeconomic Status.
Tract 3520.00 (pop. 4,813) — 58th percentile — Near the median
Driven by Socioeconomic Status (above), Household Characteristics (above) and Racial & Ethnic Minority Status (above); below the median on Housing Type & Transportation.
Tract 1103.01 (pop. 6,455) — 56th percentile — Near the median
Driven by Housing Type & Transportation (above); near the median on Socioeconomic Status, Household Characteristics and Racial & Ethnic Minority Status.
Tract 1302.02 (pop. 4,176) — 56th percentile — Near the median
Driven by Household Characteristics (above) and Racial & Ethnic Minority Status (above); near the median on Socioeconomic Status and Housing Type & Transportation.
Tract 3519.00 (pop. 2,773) — 54th percentile — Near the median
Driven by Housing Type & Transportation (above); near the median on Socioeconomic Status and Racial & Ethnic Minority Status; below the median on Household Characteristics.
Tract 3453.00 (pop. 6,510) — 52nd percentile — Near the median
Driven by Housing Type & Transportation (above); near the median on Socioeconomic Status and Racial & Ethnic Minority Status; below the median on Household Characteristics.
Tract 4055.00 (pop. 5,740) — 49th percentile — Near the median
Near the median on Socioeconomic Status, Household Characteristics and Racial & Ethnic Minority Status; below the median on Housing Type & Transportation.
Tract 4053.00 (pop. 5,790) — 49th percentile — Near the median
Driven by Household Characteristics (well above); near the median on Racial & Ethnic Minority Status and Housing Type & Transportation; below the median on Socioeconomic Status.
Tract 3431.01 (pop. 4,934) — 48th percentile — Near the median
Driven by Housing Type & Transportation (above); near the median on Household Characteristics and Racial & Ethnic Minority Status; below the median on Socioeconomic Status.
Tract 1253.00 (pop. 5,515) — 47th percentile — Near the median
Driven by Household Characteristics (above) and Racial & Ethnic Minority Status (above); near the median on Socioeconomic Status; below the median on Housing Type & Transportation.
Tract 3481.25 (pop. 4,866) — 46th percentile — Near the median
Driven by Housing Type & Transportation (above); near the median on Household Characteristics; below the median on Socioeconomic Status and Racial & Ethnic Minority Status.
Tract 1101.00 (pop. 3,549) — 45th percentile — Near the median
Driven by Racial & Ethnic Minority Status (above) and Housing Type & Transportation (well above); below the median on Socioeconomic Status and Household Characteristics.
Tract 3601.00 (pop. 5,090) — 44th percentile — Near the median
Driven by Household Characteristics (well above); below the median on Socioeconomic Status, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 3481.24 (pop. 2,733) — 42nd percentile — Near the median
Near the median on Socioeconomic Status, Household Characteristics and Housing Type & Transportation; below the median on Racial & Ethnic Minority Status.
Below the median — 24 tracts (20th–40th percentile)
Tract 3411.00 (pop. 6,147) — 37th percentile — Below the median
Driven by Household Characteristics (above); near the median on Housing Type & Transportation; below the median on Socioeconomic Status and Racial & Ethnic Minority Status.
Tract 1301.02 (pop. 3,719) — 36th percentile — Below the median
Near the median on Socioeconomic Status, Racial & Ethnic Minority Status and Housing Type & Transportation; below the median on Household Characteristics.
Tract 1201.00 (pop. 6,688) — 36th percentile — Below the median
Near the median on Socioeconomic Status and Racial & Ethnic Minority Status; below the median on Household Characteristics and Housing Type & Transportation.
Tract 4060.02 (pop. 4,551) — 35th percentile — Below the median
Driven by Housing Type & Transportation (above); near the median on Household Characteristics; below the median on Socioeconomic Status and Racial & Ethnic Minority Status.
Tract 3433.00 (pop. 6,564) — 35th percentile — Below the median
Near the median on Housing Type & Transportation; below the median on Socioeconomic Status, Household Characteristics and Racial & Ethnic Minority Status.
Tract 4058.01 (pop. 3,073) — 34th percentile — Below the median
Near the median on Household Characteristics and Racial & Ethnic Minority Status; below the median on Socioeconomic Status and Housing Type & Transportation.
Tract 3431.02 (pop. 4,225) — 33rd percentile — Below the median
Driven by Housing Type & Transportation (above); near the median on Household Characteristics; below the median on Socioeconomic Status and Racial & Ethnic Minority Status.
Tract 3471.00 (pop. 5,790) — 33rd percentile — Below the median
Driven by Household Characteristics (above); below the median on Socioeconomic Status, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 3441.00 (pop. 4,745) — 32nd percentile — Below the median
Near the median on Household Characteristics and Housing Type & Transportation; below the median on Socioeconomic Status and Racial & Ethnic Minority Status.
Tract 4051.00 (pop. 3,061) — 32nd percentile — Below the median
Near the median on Socioeconomic Status and Racial & Ethnic Minority Status; below the median on Household Characteristics and Housing Type & Transportation.
Tract 4054.01 (pop. 3,039) — 31st percentile — Below the median
Near the median on Socioeconomic Status; below the median on Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 1251.00 (pop. 4,237) — 31st percentile — Below the median
Near the median on Racial & Ethnic Minority Status; below the median on Socioeconomic Status, Household Characteristics and Housing Type & Transportation.
Tract 3612.00 (pop. 5,386) — 30th percentile — Below the median
Near the median on Household Characteristics; below the median on Socioeconomic Status, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 4253.00 (pop. 3,927) — 28th percentile — Below the median
Driven by Housing Type & Transportation (above); below the median on Socioeconomic Status, Household Characteristics and Racial & Ethnic Minority Status.
Tract 4255.00 (pop. 3,031) — 27th percentile — Below the median
Driven by Household Characteristics (above); near the median on Socioeconomic Status; below the median on Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 3452.02 (pop. 3,973) — 27th percentile — Below the median
Near the median on Housing Type & Transportation; below the median on Socioeconomic Status, Household Characteristics and Racial & Ethnic Minority Status.
Tract 3421.00 (pop. 3,423) — 26th percentile — Below the median
Near the median on Household Characteristics; below the median on Socioeconomic Status, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 4059.00 (pop. 5,008) — 26th percentile — Below the median
Near the median on Household Characteristics; below the median on Socioeconomic Status, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 3604.00 (pop. 5,816) — 24th percentile — Below the median
Near the median on Housing Type & Transportation; below the median on Socioeconomic Status, Household Characteristics and Racial & Ethnic Minority Status.
Tract 4254.00 (pop. 4,788) — 23rd percentile — Below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 3492.00 (pop. 2,505) — 23rd percentile — Below the median
Near the median on Housing Type & Transportation; below the median on Socioeconomic Status, Household Characteristics and Racial & Ethnic Minority Status.
Tract 1106.02 (pop. 5,394) — 21st percentile — Below the median
Near the median on Racial & Ethnic Minority Status; below the median on Socioeconomic Status, Household Characteristics and Housing Type & Transportation.
Tract 3481.11 (pop. 2,334) — 21st percentile — Below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 3491.00 (pop. 4,987) — 21st percentile — Below the median
Near the median on Racial & Ethnic Minority Status; below the median on Socioeconomic Status, Household Characteristics and Housing Type & Transportation.
Well below the median — 19 tracts (0th–20th percentile)
Tract 4058.02 (pop. 4,482) — 19th percentile — Well below the median
Near the median on Racial & Ethnic Minority Status and Housing Type & Transportation; below the median on Socioeconomic Status and Household Characteristics.
Tract 3602.00 (pop. 7,790) — 17th percentile — Well below the median
Near the median on Household Characteristics; below the median on Socioeconomic Status, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 3603.00 (pop. 3,557) — 17th percentile — Well below the median
Near the median on Household Characteristics and Racial & Ethnic Minority Status; below the median on Socioeconomic Status and Housing Type & Transportation.
Tract 3621.01 (pop. 4,009) — 15th percentile — Well below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 1104.00 (pop. 5,045) — 12th percentile — Well below the median
Near the median on Racial & Ethnic Minority Status; below the median on Socioeconomic Status, Household Characteristics and Housing Type & Transportation.
Tract 3434.00 (pop. 7,297) — 10th percentile — Well below the median
Near the median on Household Characteristics and Racial & Ethnic Minority Status; below the median on Socioeconomic Status and Housing Type & Transportation.
Tract 3611.00 (pop. 6,642) — 9th percentile — Well below the median
Near the median on Racial & Ethnic Minority Status; below the median on Socioeconomic Status, Household Characteristics and Housing Type & Transportation.
Tract 3432.00 (pop. 6,020) — 8th percentile — Well below the median
Near the median on Racial & Ethnic Minority Status; below the median on Socioeconomic Status, Household Characteristics and Housing Type & Transportation.
Tract 3621.02 (pop. 5,824) — 7th percentile — Well below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 3442.00 (pop. 3,062) — 6th percentile — Well below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 1105.00 (pop. 5,235) — 4th percentile — Well below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 3613.00 (pop. 4,251) — 4th percentile — Well below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 3481.22 (pop. 4,225) — 3rd percentile — Well below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 3461.02 (pop. 5,993) — 2nd percentile — Well below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 3472.00 (pop. 3,668) — 2nd percentile — Well below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 1302.01 (pop. 3,890) — 2nd percentile — Well below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 1106.01 (pop. 2,476) — 2nd percentile — Well below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 3481.23 (pop. 5,913) — 2nd percentile — Well below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 3461.01 (pop. 6,998) — 1st percentile — Well below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
SVI = the CDC/ATSDR Social Vulnerability Index, recomputed by this platform from American Community Survey 2020–2024 5-year estimates using CDC's published method. Percentiles rank each tract against all U.S. tracts. "Vulnerability" is the name of CDC's index; the platform reports where a place ranks on it, and does not grade places or their residents.
Top-decile flags follow CDC's own convention (≥ 90th percentile) and are attributed as such; they are not part of an official CDC distribution.