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.
Winnebago County — Social Vulnerability Index
Unofficial CDC-method recomputation, 2020–2024 ACS 5-year
Winnebago County — Social Vulnerability Index by census tract
Where this is
Shading: Overall SVI Percentile
Lower (3 to 24)Lower-middle (24 to 47)Middle (48 to 68)Upper-middle (71 to 85)Higher (85 to 98)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.
Click a tract to see its overall percentile and theme scores.
Median tract: 57th percentile (among all U.S. tracts).
These tracts span the 3rd percentile to the 98th percentile. The width of that range is the internal disparity.
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 — 22 tracts (80th–100th percentile)
Tract 11.00 (pop. 1,303) — 98th 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 12.00 (pop. 2,776) — 98th 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 26.00 (pop. 3,209) — 98th 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 25.00 (pop. 2,695) — 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 37.09 (pop. 1,888) — 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 (above) and Housing Type & Transportation (well above).
Tract 18.00 (pop. 4,689) — 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 36.02 (pop. 3,533) — 93rd percentile — Well above the median CDC-based flag ≥ 90th percentile
Driven by Socioeconomic Status (well above), Household Characteristics (well above) and Housing Type & Transportation (above); near the median on Racial & Ethnic Minority Status.
Tract 33.00 (pop. 4,102) — 92nd 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 19.00 (pop. 3,284) — 92nd 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 10.00 (pop. 2,202) — 92nd percentile — Well above the median CDC-based flag ≥ 90th percentile
Driven by Socioeconomic Status (well above), Household Characteristics (above), Racial & Ethnic Minority Status (above) and Housing Type & Transportation (above).
Tract 15.00 (pop. 5,468) — 91st percentile — Well above the median CDC-based flag ≥ 90th percentile
Driven by Socioeconomic Status (above), Household Characteristics (well above), Racial & Ethnic Minority Status (above) and Housing Type & Transportation (above).
Tract 5.02 (pop. 4,020) — 90th percentile — Well above the median
Driven by Socioeconomic Status (above), Household Characteristics (well above) and Housing Type & Transportation (well above); near the median on Racial & Ethnic Minority Status.
Tract 13.00 (pop. 1,874) — 88th percentile — Well above the median
Driven by Socioeconomic Status (well above), Household Characteristics (well above) and Housing Type & Transportation (above); near the median on Racial & Ethnic Minority Status.
Tract 29.00 (pop. 1,325) — 87th percentile — Well above the median
Driven by Socioeconomic Status (well above), Household Characteristics (above) and Housing Type & Transportation (well above); near the median on Racial & Ethnic Minority Status.
Tract 24.00 (pop. 2,409) — 87th percentile — Well above the median
Driven by Socioeconomic Status (well above), Household Characteristics (well above) and Racial & Ethnic Minority Status (well above); below the median on Housing Type & Transportation.
Tract 23.01 (pop. 2,287) — 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.
Tract 31.00 (pop. 3,118) — 85th percentile — Well above the median
Driven by Socioeconomic Status (well above), Household Characteristics (above), Racial & Ethnic Minority Status (above) and Housing Type & Transportation (above).
Tract 36.04 (pop. 2,865) — 84th percentile — Well 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 36.05 (pop. 1,928) — 84th percentile — Well 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 27.00 (pop. 2,495) — 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 32.00 (pop. 2,329) — 82nd percentile — Well above the median
Driven by Socioeconomic Status (well above), Household Characteristics (well above) and Racial & Ethnic Minority Status (well above); below the median on Housing Type & Transportation.
Tract 8.00 (pop. 2,839) — 81st percentile — Well 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.
Above the median — 14 tracts (60th–80th percentile)
Tract 28.00 (pop. 1,371) — 80th percentile — Above the median
Driven by Socioeconomic Status (well above), Household Characteristics (well above) and Racial & Ethnic Minority Status (well above); below the median on Housing Type & Transportation.
Tract 36.06 (pop. 2,662) — 80th percentile — Above the median
Driven by Socioeconomic Status (well above) and Household Characteristics (well above); near the median on Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 38.09 (pop. 4,648) — 79th percentile — Above the median
Driven by Socioeconomic Status (above), Household Characteristics (above) and Housing Type & Transportation (well above); near the median on Racial & Ethnic Minority Status.
Tract 22.00 (pop. 2,815) — 78th 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 21.00 (pop. 1,928) — 77th 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 5.07 (pop. 3,660) — 75th 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 16.00 (pop. 5,534) — 74th 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 20.00 (pop. 1,697) — 74th percentile — Above the median
Driven by Socioeconomic Status (well above), Household Characteristics (above) and Racial & Ethnic Minority Status (above); below the median on Housing Type & Transportation.
Tract 14.00 (pop. 4,024) — 72nd percentile — Above the median
Driven by Socioeconomic Status (above) and Household Characteristics (well above); near the median on Racial & Ethnic Minority Status; below the median on Housing Type & Transportation.
Tract 34.00 (pop. 4,754) — 71st 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 17.00 (pop. 2,851) — 68th percentile — Above the median
Driven by Socioeconomic Status (well above) and Racial & Ethnic Minority Status (above); near the median on Household Characteristics; below the median on Housing Type & Transportation.
Tract 1.05 (pop. 3,877) — 65th percentile — Above the median
Driven by Socioeconomic Status (above) and Household Characteristics (well above); below the median on Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 4.03 (pop. 4,361) — 62nd percentile — Above the median
Driven by Household Characteristics (well above) and Housing Type & Transportation (well above); near the median on Racial & Ethnic Minority Status; below the median on Socioeconomic Status.
Tract 2.00 (pop. 3,468) — 61st percentile — Above the median
Driven by Socioeconomic Status (above); near the median on Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Near the median — 16 tracts (40th–60th percentile)
Tract 40.03 (pop. 2,081) — 59th percentile — Near the median
Driven by Socioeconomic Status (above); near the median on Racial & Ethnic Minority Status and Housing Type & Transportation; below the median on Household Characteristics.
Tract 5.12 (pop. 4,547) — 59th percentile — Near the median
Driven by Housing Type & Transportation (above); near the median on Socioeconomic Status, Household Characteristics and Racial & Ethnic Minority Status.
Tract 5.13 (pop. 4,028) — 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 37.08 (pop. 3,593) — 57th 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 5.01 (pop. 5,350) — 55th percentile — Near the median
Driven by Household Characteristics (well above); near the median on Socioeconomic Status and Racial & Ethnic Minority Status; below the median on Housing Type & Transportation.
Tract 23.02 (pop. 1,349) — 53rd percentile — Near the median
Driven by Household Characteristics (well above); near the median on Socioeconomic Status; below the median on Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 5.15 (pop. 2,691) — 52nd percentile — Near the median
Driven by Household Characteristics (above) and Racial & Ethnic Minority Status (above); near the median on Housing Type & Transportation; below the median on Socioeconomic Status.
Tract 37.07 (pop. 3,596) — 51st 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 40.04 (pop. 6,157) — 51st percentile — Near the median
Driven by Housing Type & Transportation (above); near the median on Socioeconomic Status and Household Characteristics; below the median on Racial & Ethnic Minority Status.
Tract 37.10 (pop. 2,780) — 51st 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 1.04 (pop. 2,788) — 48th percentile — Near the median
Driven by Socioeconomic Status (above); near the median on Household Characteristics; below the median on Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 38.05 (pop. 6,985) — 48th 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 6.00 (pop. 4,697) — 47th 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 1.03 (pop. 2,669) — 46th percentile — Near the median
Driven by Socioeconomic Status (above); near the median on Household Characteristics; below the median on Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 4.02 (pop. 2,838) — 46th percentile — Near the median
Driven by Household Characteristics (well above); near the median on Housing Type & Transportation; below the median on Socioeconomic Status and Racial & Ethnic Minority Status.
Tract 3.00 (pop. 4,141) — 43rd 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.
Below the median — 18 tracts (20th–40th percentile)
Tract 7.00 (pop. 2,955) — 37th percentile — Below the median
Driven by Socioeconomic Status (above); near the median on Household Characteristics; below the median on Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 37.06 (pop. 5,901) — 36th percentile — Below 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 41.00 (pop. 5,203) — 34th percentile — Below the median
Driven by Housing Type & Transportation (above); below the median on Socioeconomic Status, Household Characteristics and Racial & Ethnic Minority Status.
Tract 37.05 (pop. 4,819) — 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 4.01 (pop. 2,230) — 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 37.11 (pop. 3,661) — 32nd percentile — Below the median
Driven by Socioeconomic Status (above); below the median on Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 38.10 (pop. 5,621) — 27th percentile — Below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 5.11 (pop. 2,409) — 26th 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 5.14 (pop. 3,747) — 26th 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 1.01 (pop. 4,359) — 25th 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 5.16 (pop. 3,823) — 24th percentile — Below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 38.08 (pop. 4,002) — 24th percentile — Below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 30.00 (pop. 1,635) — 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 36.01 (pop. 1,824) — 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 35.00 (pop. 2,547) — 22nd 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 5.06 (pop. 4,856) — 22nd 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 38.01 (pop. 6,767) — 20th percentile — Below the median
Driven by Household Characteristics (above); below the median on Socioeconomic Status, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 5.10 (pop. 3,495) — 20th 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 — 9 tracts (0th–20th percentile)
Tract 42.00 (pop. 5,906) — 19th 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 39.04 (pop. 4,638) — 17th percentile — Well below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 40.02 (pop. 5,901) — 16th percentile — Well below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 43.00 (pop. 5,024) — 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 38.06 (pop. 5,549) — 9th percentile — Well below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 39.01 (pop. 5,132) — 8th 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 38.11 (pop. 1,519) — 5th 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 39.03 (pop. 5,849) — 3rd 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 40.05 (pop. 3,337) — 3rd percentile — Well below the median
Below the median on Socioeconomic Status, Household Characteristics, 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.