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.

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NationallyWithin its state

Northeastern Connect — Social Vulnerability Index

Unofficial CDC-method recomputation, 2020–2024 ACS 5-year
Northeastern Connect — Social Vulnerability Index by census tract
Tract 7081.00 — 19 (Lower)Tract 8150.00 — 23 (Lower-middle)Tract 8200.00 — 37 (Middle)Tract 8250.00 — 21 (Lower)Tract 8301.00 — 43 (Upper-middle)Tract 8902.03 — 14 (Lower)Tract 9001.00 — 36 (Middle)Tract 9002.00 — 57 (Upper-middle)Tract 9011.01 — 37 (Middle)Tract 9011.02 — 20 (Lower)Tract 9022.00 — 37 (Middle)Tract 9025.00 — 52 (Upper-middle)Tract 9031.01 — 58 (Higher)Tract 9031.02 — 60 (Higher)Tract 9032.00 — 34 (Lower-middle)Tract 9041.01 — 51 (Upper-middle)Tract 9041.02 — 29 (Lower-middle)Tract 9044.00 — 69 (Higher)Tract 9045.00 — 75 (Higher)Tract 9051.01 — 40 (Middle)Tract 9051.02 — 49 (Upper-middle)Tract 9061.00 — 32 (Lower-middle)Tract 9071.00 — 70 (Higher)Tract 9072.00 — 17 (Lower)Tract 9073.00 — 64 (Higher)Tract 9081.00 — 32 (Lower-middle)
Where this is
Shading: Overall SVI Percentile
Lower (14 to 21)Lower-middle (23 to 34)Middle (36 to 40)Upper-middle (43 to 57)Higher (58 to 75)
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: 37th percentile (among tracts in CT).
These tracts span the 14th percentile to the 75th percentile. The width of that range is the internal disparity.
Well above the median0 (0%) · 0 people
Above the median5 (19%) · 23,762 people
Near the median6 (23%) · 25,495 people
Below the median12 (46%) · 37,909 people
Well below the median3 (12%) · 9,146 people
Widest spread across these tracts: Housing Type & Transportation — 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.
Above the median — 5 tracts (60th–80th percentile)
Tract 9045.00 (pop. 6,125) — 75th percentile — Above the median
Driven by Socioeconomic Status (well above), Household Characteristics (above) and Housing Type & Transportation (above); below the median on Racial & Ethnic Minority Status.
Tract 9071.00 (pop. 4,287) — 70th percentile — Above the median
Driven by Socioeconomic Status (above) and Housing Type & Transportation (above); near the median on Household Characteristics; below the median on Racial & Ethnic Minority Status.
Tract 9044.00 (pop. 4,491) — 69th percentile — Above the median
Driven by Socioeconomic Status (above), Household Characteristics (above) and Housing Type & Transportation (above); below the median on Racial & Ethnic Minority Status.
Tract 9073.00 (pop. 5,256) — 64th percentile — Above the median
Driven by Socioeconomic Status (above) and Housing Type & Transportation (above); near the median on Household Characteristics; below the median on Racial & Ethnic Minority Status.
Tract 9031.02 (pop. 3,603) — 60th percentile — Above the median
Driven by Socioeconomic Status (above) and Household Characteristics (above); below the median on Racial & Ethnic Minority Status and Housing Type & Transportation.
Near the median — 6 tracts (40th–60th percentile)
Tract 9031.01 (pop. 3,412) — 58th percentile — Near the median
Driven by Household Characteristics (above) and Housing Type & Transportation (above); near the median on Socioeconomic Status; below the median on Racial & Ethnic Minority Status.
Tract 9002.00 (pop. 4,955) — 57th percentile — Near the median
Driven by Socioeconomic Status (above) and Housing Type & Transportation (above); near the median on Household Characteristics; below the median on Racial & Ethnic Minority Status.
Tract 9025.00 (pop. 4,317) — 52nd percentile — Near the median
Driven by Housing Type & Transportation (well above); below the median on Socioeconomic Status, Household Characteristics and Racial & Ethnic Minority Status.
Tract 9041.01 (pop. 4,657) — 51st percentile — Near the median
Driven by Housing Type & Transportation (well above); near the median on Socioeconomic Status; below the median on Household Characteristics and Racial & Ethnic Minority Status.
Tract 9051.02 (pop. 3,928) — 49th percentile — Near the median
Driven by Housing Type & Transportation (well above); below the median on Socioeconomic Status, Household Characteristics and Racial & Ethnic Minority Status.
Tract 8301.00 (pop. 4,226) — 43rd percentile — Near the median
Near the median on Socioeconomic Status and Housing Type & Transportation; below the median on Household Characteristics and Racial & Ethnic Minority Status.
Below the median — 12 tracts (20th–40th percentile)
Tract 9051.01 (pop. 4,589) — 40th 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 9011.01 (pop. 3,168) — 37th percentile — Below the median
Near the median on Socioeconomic Status and Household Characteristics; below the median on Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 9022.00 (pop. 1,679) — 37th percentile — Below the median
Driven by Housing Type & Transportation (above); below the median on Socioeconomic Status, Household Characteristics and Racial & Ethnic Minority Status.
Tract 8200.00 (pop. 1,647) — 37th 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 9001.00 (pop. 4,382) — 36th percentile — Below the median
Near the median on Socioeconomic Status and Housing Type & Transportation; below the median on Household Characteristics and Racial & Ethnic Minority Status.
Tract 9032.00 (pop. 2,277) — 34th 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 9081.00 (pop. 3,629) — 32nd 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 9061.00 (pop. 5,124) — 32nd 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 9041.02 (pop. 2,594) — 29th percentile — Below the median
Near the median on Socioeconomic Status and Household Characteristics; below the median on Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 8150.00 (pop. 2,070) — 23rd percentile — Below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 8250.00 (pop. 1,599) — 21st 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 9011.02 (pop. 5,151) — 20th percentile — Below the median
Near the median on Household Characteristics; below the median on Socioeconomic Status, Racial & Ethnic Minority Status and Housing Type & Transportation.
Well below the median — 3 tracts (0th–20th percentile)
Tract 7081.00 (pop. 2,604) — 19th percentile — Well below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 9072.00 (pop. 5,598) — 17th percentile — Well below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 8902.03 (pop. 944) — 14th 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.
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 tracts in CT. "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.

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