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.
Portsmouth city — Social Vulnerability Index
Unofficial CDC-method recomputation, 2020–2024 ACS 5-year
Portsmouth city — Social Vulnerability Index by census tract
Where this is
Shading: Overall SVI Percentile
Lower (21 to 43)Lower-middle (43 to 59)Middle (60 to 74)Upper-middle (79 to 92)Higher (94 to 99)No data
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.
Median tract: 64th percentile (among all U.S. tracts).
These tracts span the 21st percentile to the 99th percentile. The width of that range is the internal disparity.
Tract 2125.00 is marked below — Near the median.
Widest spread across these tracts: Household Characteristics — 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 — 10 tracts (80th–100th percentile)
Tract 2121.00 (pop. 1,191) — 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 2105.00 (pop. 1,901) — 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 2115.00 (pop. 2,136) — 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 2114.00 (pop. 1,818) — 96th 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 2119.00 (pop. 1,632) — 94th percentile — Well above the median CDC-based flag ≥ 90th percentile
Driven by Socioeconomic Status (well above), Household Characteristics (above), Racial & Ethnic Minority Status (well above) and Housing Type & Transportation (well above).
Tract 2120.00 (pop. 2,259) — 94th percentile — Well above the median CDC-based flag ≥ 90th percentile
Driven by Socioeconomic Status (well above), Household Characteristics (above), Racial & Ethnic Minority Status (well above) and Housing Type & Transportation (well above).
Tract 2111.00 (pop. 1,767) — 92nd percentile — Well above the median CDC-based flag ≥ 90th percentile
Driven by Socioeconomic Status (above), Household Characteristics (well above), Racial & Ethnic Minority Status (well above) and Housing Type & Transportation (well above).
Tract 2118.00 (pop. 3,452) — 88th percentile — Well above the median
Driven by Socioeconomic Status (well above), Racial & Ethnic Minority Status (well above) and Housing Type & Transportation (above); near the median on Household Characteristics.
Tract 2128.01 (pop. 4,448) — 88th percentile — Well above the median
Driven by Socioeconomic Status (well above), Household Characteristics (above), Racial & Ethnic Minority Status (above) and Housing Type & Transportation (well above).
Tract 2123.00 (pop. 4,389) — 85th 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.
Above the median — 7 tracts (60th–80th percentile)
Tract 2132.00 (pop. 2,560) — 79th percentile — Above the median
Driven by Socioeconomic Status (above), Racial & Ethnic Minority Status (above) and Housing Type & Transportation (well above); below the median on Household Characteristics.
Tract 2131.01 (pop. 5,652) — 79th percentile — Above the median
Driven by Socioeconomic Status (above), Racial & Ethnic Minority Status (well above) and Housing Type & Transportation (well above); below the median on Household Characteristics.
Tract 2116.00 (pop. 4,077) — 74th 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 2131.03 (pop. 5,984) — 65th 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 2124.00 (pop. 4,232) — 64th percentile — Above the median
Driven by Socioeconomic Status (above), Household Characteristics (above) and Racial & Ethnic Minority Status (above); below the median on Housing Type & Transportation.
Tract 2117.00 (pop. 3,589) — 64th percentile — Above the median
Driven by Socioeconomic Status (well above) and Racial & Ethnic Minority Status (well above); below the median on Household Characteristics and Housing Type & Transportation.
Tract 2127.01 (pop. 5,130) — 60th percentile — Above the median
Driven by Socioeconomic Status (above), Household Characteristics (above) and Racial & Ethnic Minority Status (well above); below the median on Housing Type & Transportation.
Near the median — 8 tracts (40th–60th percentile)
Tract 2126.00 (pop. 1,746) — 60th percentile — Near the median
Driven by Socioeconomic Status (above), Household Characteristics (above) and Racial & Ethnic Minority Status (well above); below the median on Housing Type & Transportation.
Tract 2109.00 (pop. 3,650) — 59th percentile — Near the median
Driven by Housing Type & Transportation (well above); near the median on Socioeconomic Status and Racial & Ethnic Minority Status; below the median on Household Characteristics.
Tract 2127.02 (pop. 3,207) — 49th percentile — Near the median
Driven by Household Characteristics (above) and Racial & Ethnic Minority Status (well above); near the median on Socioeconomic Status; below the median on Housing Type & Transportation.
Tract 2128.02 (pop. 2,486) — 49th percentile — Near the median
Driven by Socioeconomic Status (above); near the median on Racial & Ethnic Minority Status; below the median on Household Characteristics and Housing Type & Transportation.
Tract 2131.04 (pop. 4,114) — 49th percentile — Near the median
Driven by Household Characteristics (well above) and Racial & Ethnic Minority Status (above); near the median on Socioeconomic Status; below the median on Housing Type & Transportation.
Tract 2102.00 (pop. 2,161) — 43rd percentile — Near the median
Driven by Household Characteristics (above); near the median on Socioeconomic Status and Racial & Ethnic Minority Status; below the median on Housing Type & Transportation.
Tract 2125.00 (pop. 2,605) — 43rd percentile — Near the median
Driven by Racial & Ethnic Minority Status (above); near the median on Socioeconomic Status and Household Characteristics; below the median on Housing Type & Transportation.
Tract 2104.00 (pop. 1,518) — 43rd percentile — Near the median
Near the median on Socioeconomic Status, Racial & Ethnic Minority Status and Housing Type & Transportation; below the median on Household Characteristics.
Below the median — 5 tracts (20th–40th percentile)
Tract 2130.02 (pop. 4,279) — 39th percentile — 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 2103.00 (pop. 2,583) — 37th percentile — Below the median
Driven by Socioeconomic Status (above), Household Characteristics (above) and Racial & Ethnic Minority Status (above); below the median on Housing Type & Transportation.
Tract 2130.01 (pop. 5,626) — 36th percentile — Below the median
Driven by Racial & Ethnic Minority Status (above); near the median on Socioeconomic Status and Household Characteristics; below the median on Housing Type & Transportation.
Tract 2106.00 (pop. 1,780) — 27th percentile — Below the median
Driven by Racial & Ethnic Minority Status (above); near the median on Socioeconomic Status; below the median on Household Characteristics and Housing Type & Transportation.
Tract 2129.00 (pop. 4,708) — 21st 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.
1 tract unranked — no population or suppressed
These carry no percentile (zero-population or suppressed data, typically water and special-use tracts). They are excluded from the bands, median and range above, and are never shown as a low score.
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.