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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Williamson County — Social Vulnerability Index

Unofficial CDC-method recomputation, 2020–2024 ACS 5-year
Williamson County — Social Vulnerability Index by census tract
Where this is
Shading: Overall SVI Percentile
Lower (0 to 1)Lower-middle (1 to 4)Middle (6 to 12)Upper-middle (12 to 22)Higher (22 to 92)
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: 9th percentile (among tracts in TN).
These tracts span the 0th percentile to the 92nd percentile. The width of that range is the internal disparity.
Well above the median1 (2%) · 5,521 people
Above the median0 (0%) · 0 people
Near the median1 (2%) · 5,867 people
Below the median11 (24%) · 67,058 people
Well below the median33 (72%) · 181,905 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.
Well above the median — 1 tract (80th–100th percentile)
Tract 508.01 (pop. 5,521) — 92nd 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 (well above).
Near the median — 1 tract (40th–60th percentile)
Tract 509.04 (pop. 5,867) — 56th percentile — Near the median
Driven by Racial & Ethnic Minority Status (above) and Housing Type & Transportation (above); near the median on Socioeconomic Status; below the median on Household Characteristics.
Below the median — 11 tracts (20th–40th percentile)
Tract 512.06 (pop. 9,004) — 36th 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 503.04 (pop. 2,443) — 33rd percentile — Below the median
Driven by Racial & Ethnic Minority Status (above) and Housing Type & Transportation (above); below the median on Socioeconomic Status and Household Characteristics.
Tract 506.01 (pop. 6,155) — 31st percentile — Below the median
Driven by Household Characteristics (above); near the median on Racial & Ethnic Minority Status and Housing Type & Transportation; below the median on Socioeconomic Status.
Tract 505.04 (pop. 4,726) — 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 505.02 (pop. 4,002) — 29th 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 505.03 (pop. 6,461) — 26th percentile — Below the median
Driven by Household Characteristics (above); near the median on Racial & Ethnic Minority Status; below the median on Socioeconomic Status and Housing Type & Transportation.
Tract 502.11 (pop. 6,980) — 25th percentile — Below the median
Driven by Racial & Ethnic Minority Status (well above); near the median on Housing Type & Transportation; below the median on Socioeconomic Status and Household Characteristics.
Tract 506.04 (pop. 10,491) — 22nd 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 509.07 (pop. 4,904) — 22nd percentile — Below the median
Driven by Housing Type & Transportation (above); below the median on Socioeconomic Status, Household Characteristics and Racial & Ethnic Minority Status.
Tract 510.01 (pop. 9,140) — 20th percentile — Below the median
Driven by Racial & Ethnic Minority Status (above); near the median on Housing Type & Transportation; below the median on Socioeconomic Status and Household Characteristics.
Tract 502.10 (pop. 2,752) — 20th 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.
Well below the median — 33 tracts (0th–20th percentile)
Tract 512.03 (pop. 3,010) — 20th 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 512.05 (pop. 9,651) — 19th 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 503.07 (pop. 3,900) — 16th percentile — Well below the median
Driven by Housing Type & Transportation (above); near the median on Racial & Ethnic Minority Status; below the median on Socioeconomic Status and Household Characteristics.
Tract 506.03 (pop. 3,338) — 15th 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 509.08 (pop. 4,463) — 12th 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 501.04 (pop. 5,275) — 12th percentile — Well below the median
Driven by Racial & Ethnic Minority Status (above); below the median on Socioeconomic Status, Household Characteristics and Housing Type & Transportation.
Tract 512.04 (pop. 7,322) — 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 507.02 (pop. 5,028) — 9th 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 511.00 (pop. 10,448) — 9th percentile — Well below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 502.06 (pop. 3,429) — 9th percentile — Well below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 504.03 (pop. 1,928) — 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 501.03 (pop. 8,826) — 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 510.02 (pop. 12,444) — 8th percentile — Well below the median
Driven by Racial & Ethnic Minority Status (above); below the median on Socioeconomic Status, Household Characteristics and Housing Type & Transportation.
Tract 512.07 (pop. 8,048) — 7th percentile — Well below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 509.06 (pop. 5,902) — 6th 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 508.02 (pop. 1,124) — 4th percentile — Well below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 509.05 (pop. 5,941) — 4th 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 503.06 (pop. 2,120) — 4th 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 501.02 (pop. 8,680) — 3rd 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 504.06 (pop. 5,895) — 3rd 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 507.01 (pop. 4,091) — 2nd 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 502.07 (pop. 3,813) — 2nd 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 502.05 (pop. 3,294) — 2nd 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 502.09 (pop. 3,591) — 1st 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 512.08 (pop. 10,776) — 1st percentile — Well below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 501.05 (pop. 10,744) — 1st 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 502.04 (pop. 5,939) — 1st percentile — Well below the median
Driven by Racial & Ethnic Minority Status (above); below the median on Socioeconomic Status, Household Characteristics and Housing Type & Transportation.
Tract 509.09 (pop. 4,622) — 1st percentile — Well below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 503.05 (pop. 2,934) — 1st 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 503.03 (pop. 3,131) — 1st percentile — Well below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 504.05 (pop. 3,469) — 0th percentile — Well below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 504.04 (pop. 6,537) — 0th percentile — Well below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 502.12 (pop. 2,192) — 0th 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 tracts in TN. "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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