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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Winnebago County — Social Vulnerability Index

Unofficial CDC-method recomputation, 2020–2024 ACS 5-year
Winnebago County — Social Vulnerability Index by census tract
Tract 1.00 — 32 (Middle)Tract 2.00 — 65 (Higher)Tract 3.00 — 48 (Upper-middle)Tract 4.00 — 52 (Upper-middle)Tract 5.02 — 36 (Middle)Tract 7.00 — 61 (Higher)Tract 8.00 — 31 (Middle)Tract 9.00 — 44 (Upper-middle)Tract 10.00 — 54 (Upper-middle)Tract 11.00 — 58 (Higher)Tract 12.00 — 45 (Upper-middle)Tract 13.00 — 24 (Middle)Tract 14.00 — 38 (Middle)Tract 15.00 — 32 (Middle)Tract 16.00 — 42 (Upper-middle)Tract 17.00 — 31 (Middle)Tract 18.01 — 3 (Lower)Tract 18.03 — 43 (Upper-middle)Tract 18.04 — 6 (Lower)Tract 19.00 — 9 (Lower-middle)Tract 20.01 — 7 (Lower)Tract 20.02 — 21 (Lower-middle)Tract 21.00 — 8 (Lower)Tract 22.01 — 9 (Lower-middle)Tract 22.02 — 7 (Lower)Tract 23.00 — 1 (Lower)Tract 24.01 — 12 (Lower-middle)Tract 24.02 — 1 (Lower)Tract 25.00 — 67 (Higher)Tract 26.01 — 54 (Upper-middle)Tract 26.02 — 65 (Higher)Tract 27.00 — 31 (Middle)Tract 28.00 — 70 (Higher)Tract 29.00 — 73 (Higher)Tract 30.00 — 16 (Lower-middle)Tract 31.00 — 21 (Lower-middle)Tract 32.00 — 2 (Lower)Tract 33.00 — 24 (Lower-middle)Tract 34.00 — 44 (Upper-middle)Tract 35.00 — 76 (Higher)Tract 36.00 — 3 (Lower)Tract 37.01 — 65 (Higher)Tract 37.03 — 15 (Lower-middle)Tract 37.04 — 24 (Lower-middle)Tract 5.01 — 30 (Middle)
Where this is
Shading: Overall SVI Percentile
Lower (1 to 8)Lower-middle (9 to 24)Middle (24 to 38)Upper-middle (42 to 54)Higher (58 to 76)
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: 31st percentile (among all U.S. tracts).
These tracts span the 1st percentile to the 76th percentile. The width of that range is the internal disparity.
Tract 5.01 is marked below — Below the median.
Well above the median0 (0%) · 0 people
Above the median8 (18%) · 29,793 people
Near the median10 (22%) · 37,426 people
Below the median13 (29%) · 43,858 people ◀ Tract 5.01
Well below the median14 (31%) · 60,692 people
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.
Above the median — 8 tracts (60th–80th percentile)
Tract 35.00 (pop. 2,612) — 76th percentile — Above the median
Driven by Household Characteristics (well above) and Housing Type & Transportation (well above); near the median on Socioeconomic Status; below the median on Racial & Ethnic Minority Status.
Tract 29.00 (pop. 2,030) — 73rd 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 28.00 (pop. 4,602) — 70th percentile — Above the median
Driven by Household Characteristics (well above) and Housing Type & Transportation (well above); below the median on Socioeconomic Status and Racial & Ethnic Minority Status.
Tract 25.00 (pop. 4,698) — 67th percentile — Above the median
Driven by Household Characteristics (above) and Housing Type & Transportation (well above); near the median on Socioeconomic Status; below the median on Racial & Ethnic Minority Status.
Tract 2.00 (pop. 2,339) — 65th percentile — Above the median
Driven by Household Characteristics (well above); near the median on Socioeconomic Status and Housing Type & Transportation; below the median on Racial & Ethnic Minority Status.
Tract 26.02 (pop. 4,736) — 65th 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 37.01 (pop. 4,086) — 65th 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 7.00 (pop. 4,690) — 61st percentile — Above the median
Driven by Socioeconomic Status (well above) and Housing Type & Transportation (above); below the median on Household Characteristics and Racial & Ethnic Minority Status.
Near the median — 10 tracts (40th–60th percentile)
Tract 11.00 (pop. 3,945) — 58th percentile — Near the median
Driven by Household Characteristics (above); near the median on Socioeconomic Status and Housing Type & Transportation; below the median on Racial & Ethnic Minority Status.
Tract 10.00 (pop. 2,413) — 54th 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 26.01 (pop. 3,830) — 54th percentile — Near the median
Driven by Household Characteristics (above) and Housing Type & Transportation (above); below the median on Socioeconomic Status and Racial & Ethnic Minority Status.
Tract 4.00 (pop. 2,723) — 52nd percentile — Near the median
Driven by Housing Type & Transportation (above); near the median on Socioeconomic Status; below the median on Household Characteristics and Racial & Ethnic Minority Status.
Tract 3.00 (pop. 3,815) — 48th percentile — Near the median
Driven by Housing Type & Transportation (above); near the median on Socioeconomic Status; below the median on Household Characteristics and Racial & Ethnic Minority Status.
Tract 12.00 (pop. 2,065) — 45th 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.
Tract 34.00 (pop. 4,477) — 44th 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.
Tract 9.00 (pop. 3,360) — 44th percentile — Near the median
Driven by Household Characteristics (above) and Housing Type & Transportation (above); below the median on Socioeconomic Status and Racial & Ethnic Minority Status.
Tract 18.03 (pop. 6,354) — 43rd percentile — Near the median
Near the median on Household Characteristics and Housing Type & Transportation; below the median on Socioeconomic Status and Racial & Ethnic Minority Status.
Tract 16.00 (pop. 4,444) — 42nd percentile — Near the median
Driven by Housing Type & Transportation (well above); below the median on Socioeconomic Status, Household Characteristics and Racial & Ethnic Minority Status.
Below the median — 13 tracts (20th–40th percentile)
Tract 14.00 (pop. 3,383) — 38th 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 5.02 (pop. 3,685) — 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 1.00 (pop. 2,892) — 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 15.00 (pop. 3,503) — 32nd 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 27.00 (pop. 2,691) — 31st 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 17.00 (pop. 4,716) — 31st percentile — Below the median
Driven by Housing Type & Transportation (above); below the median on Socioeconomic Status, Household Characteristics and Racial & Ethnic Minority Status.
Tract 8.00 (pop. 3,127) — 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 5.01 (pop. 3,405) — 30th percentile — Below the median
Driven by Housing Type & Transportation (above); near the median on Socioeconomic Status; below the median on Household Characteristics and Racial & Ethnic Minority Status.
Tract 13.00 (pop. 3,269) — 24th 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 33.00 (pop. 3,024) — 24th 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 37.04 (pop. 3,708) — 24th 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 31.00 (pop. 1,902) — 21st percentile — Below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 20.02 (pop. 4,553) — 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.
Well below the median — 14 tracts (0th–20th percentile)
Tract 30.00 (pop. 1,827) — 16th 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 37.03 (pop. 6,028) — 15th 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 24.01 (pop. 4,929) — 12th percentile — Well below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 19.00 (pop. 5,229) — 9th percentile — Well below the median
Near the median on Housing Type & Transportation; below the median on Socioeconomic Status, Household Characteristics and Racial & Ethnic Minority Status.
Tract 22.01 (pop. 5,136) — 9th 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 21.00 (pop. 3,582) — 8th percentile — Well below the median
Driven by Household Characteristics (above); below the median on Socioeconomic Status, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 22.02 (pop. 3,025) — 7th percentile — Well below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 20.01 (pop. 2,755) — 7th percentile — Well below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 18.04 (pop. 4,416) — 6th percentile — Well below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 18.01 (pop. 5,669) — 3rd percentile — Well below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 36.00 (pop. 4,243) — 3rd percentile — Well below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 32.00 (pop. 2,170) — 2nd percentile — Well below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 24.02 (pop. 5,466) — 1st percentile — Well below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 23.00 (pop. 6,217) — 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.

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