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

Bradley County — Social Vulnerability Index

Unofficial CDC-method recomputation, 2020–2024 ACS 5-year
Bradley County — Social Vulnerability Index by census tract
Tract 101.00 — 70 (Upper-middle)Tract 102.01 — 94 (Higher)Tract 102.02 — 73 (Upper-middle)Tract 103.00 — 86 (Higher)Tract 104.00 — 100 (Higher)Tract 105.00 — 36 (Lower-middle)Tract 106.00 — 80 (Upper-middle)Tract 107.00 — 97 (Higher)Tract 108.00 — 94 (Higher)Tract 109.00 — 67 (Middle)Tract 110.00 — 67 (Upper-middle)Tract 111.01 — 24 (Lower)Tract 111.02 — 42 (Lower-middle)Tract 112.01 — 16 (Lower)Tract 112.03 — 18 (Lower)Tract 112.04 — 64 (Middle)Tract 113.01 — 33 (Lower-middle)Tract 113.02 — 32 (Lower)Tract 114.02 — 75 (Upper-middle)Tract 114.03 — 42 (Lower-middle)Tract 114.04 — 52 (Middle)Tract 115.01 — 36 (Lower-middle)Tract 115.02 — 24 (Lower)Tract 116.01 — 55 (Middle)Tract 116.02 — 59 (Middle)
Where this is
Shading: Overall SVI Percentile
Lower (16 to 32)Lower-middle (33 to 42)Middle (52 to 67)Upper-middle (67 to 80)Higher (86 to 100)
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: 59th percentile (among all U.S. tracts).
These tracts span the 16th percentile to the 100th percentile. The width of that range is the internal disparity.
Well above the median5 (20%) · 18,566 people
Above the median7 (28%) · 29,764 people
Near the median5 (20%) · 22,281 people
Below the median6 (24%) · 28,142 people
Well below the median2 (8%) · 12,312 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.
Tract 104.00 (pop. 3,063) — 100th percentile — Well above the median CDC-based flag ≥ 90th percentile
Driven by Socioeconomic Status (well above), Household Characteristics (well above) and Housing Type & Transportation (well above); near the median on Racial & Ethnic Minority Status.
Tract 107.00 (pop. 5,548) — 97th percentile — Well above the median CDC-based flag ≥ 90th percentile
Driven by Socioeconomic Status (well above), Household Characteristics (well above) and Housing Type & Transportation (well above); near the median on Racial & Ethnic Minority Status.
Tract 102.01 (pop. 3,304) — 94th 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 108.00 (pop. 3,231) — 94th percentile — Well above the median CDC-based flag ≥ 90th percentile
Driven by Socioeconomic Status (well above), Household Characteristics (well above) and Housing Type & Transportation (well above); near the median on Racial & Ethnic Minority Status.
Tract 103.00 (pop. 3,420) — 86th percentile — Well above the median
Driven by Socioeconomic Status (well above), Household Characteristics (above) and Housing Type & Transportation (above); near the median on Racial & Ethnic Minority Status.
Tract 106.00 (pop. 3,482) — 80th 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 114.02 (pop. 3,249) — 75th percentile — Above the median
Driven by Socioeconomic Status (above), Household Characteristics (above) and Housing Type & Transportation (well above); below the median on Racial & Ethnic Minority Status.
Tract 102.02 (pop. 3,156) — 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 101.00 (pop. 5,128) — 70th percentile — Above the median
Driven by Socioeconomic Status (above), Household Characteristics (well above) and Housing Type & Transportation (above); below the median on Racial & Ethnic Minority Status.
Tract 110.00 (pop. 5,474) — 67th percentile — Above the median
Driven by Socioeconomic Status (above) and Household Characteristics (well above); near the median on Housing Type & Transportation; below the median on Racial & Ethnic Minority Status.
Tract 109.00 (pop. 3,161) — 67th percentile — Above the median
Driven by Socioeconomic Status (above) and Household Characteristics (well above); near the median on Housing Type & Transportation; below the median on Racial & Ethnic Minority Status.
Tract 112.04 (pop. 6,114) — 64th 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 116.02 (pop. 4,857) — 59th percentile — Near the median
Driven by Socioeconomic Status (above); near the median on Household Characteristics and Housing Type & Transportation; below the median on Racial & Ethnic Minority Status.
Tract 116.01 (pop. 5,558) — 55th percentile — Near the median
Driven by Socioeconomic Status (above); near the median on Housing Type & Transportation; below the median on Household Characteristics and Racial & Ethnic Minority Status.
Tract 114.04 (pop. 4,294) — 52nd 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 111.02 (pop. 3,301) — 42nd percentile — Near 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 114.03 (pop. 4,271) — 42nd percentile — Near the median
Near the median on Socioeconomic Status; below the median on Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 105.00 (pop. 3,902) — 36th percentile — Below 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 115.01 (pop. 5,935) — 36th percentile — Below the median
Driven by Socioeconomic Status (above); below the median on Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 113.01 (pop. 5,738) — 33rd 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 113.02 (pop. 2,389) — 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 111.01 (pop. 6,474) — 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 115.02 (pop. 3,704) — 24th percentile — Below the median
Driven by Household Characteristics (above); below the median on Socioeconomic Status, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 112.03 (pop. 5,444) — 18th 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 112.01 (pop. 6,868) — 16th 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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