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.
Shasta County — Social Vulnerability Index
Unofficial CDC-method recomputation, 2020–2024 ACS 5-year
Shasta County — Social Vulnerability Index by census tract
Where this is
Shading: Overall SVI Percentile
Lower (10 to 28)Lower-middle (28 to 46)Middle (46 to 53)Upper-middle (54 to 66)Higher (67 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: 49th percentile (among tracts in CA).
These tracts span the 10th percentile to the 92nd percentile. The width of that range is the internal disparity.
Widest spread across these tracts: Housing Type & Transportation — 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 — 2 tracts (80th–100th percentile)
Tract 101.00 (pop. 1,842) — 92nd percentile — Well above the median CDC-based flag ≥ 90th percentile
Driven by Socioeconomic Status (well above) and Housing Type & Transportation (well above); near the median on Household Characteristics; below the median on Racial & Ethnic Minority Status.
Tract 112.09 (pop. 5,221) — 80th percentile — Well 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.
Above the median — 12 tracts (60th–80th percentile)
Tract 109.00 (pop. 4,273) — 75th percentile — Above the median
Driven by Socioeconomic Status (above), Household Characteristics (well above) and Housing Type & Transportation (well above); below the median on Racial & Ethnic Minority Status.
Tract 121.01 (pop. 5,359) — 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 103.00 (pop. 4,015) — 72nd percentile — Above the median
Driven by Socioeconomic Status (above) and Housing Type & Transportation (well above); near the median on Household Characteristics; below the median on Racial & Ethnic Minority Status.
Tract 127.01 (pop. 3,858) — 72nd 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 105.00 (pop. 5,025) — 70th 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 121.02 (pop. 2,255) — 68th percentile — Above the median
Driven by Household Characteristics (well above) and Housing Type & Transportation (above); near the median on Socioeconomic Status; below the median on Racial & Ethnic Minority Status.
Tract 107.04 (pop. 4,227) — 68th 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 123.01 (pop. 2,456) — 67th 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 120.00 (pop. 5,287) — 66th 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 126.06 (pop. 3,323) — 66th percentile — Above the median
Driven by Socioeconomic Status (above) and Housing Type & Transportation (above); near the median on Household Characteristics; below the median on Racial & Ethnic Minority Status.
Tract 107.03 (pop. 4,277) — 64th percentile — Above the median
Driven by Housing Type & Transportation (well above); near the median on Socioeconomic Status and Household Characteristics; below the median on Racial & Ethnic Minority Status.
Tract 117.02 (pop. 3,510) — 62nd 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.
Near the median — 20 tracts (40th–60th percentile)
Tract 116.00 (pop. 3,525) — 60th percentile — Near the median
Driven by Socioeconomic Status (above), Household Characteristics (above) and Housing Type & Transportation (above); below the median on Racial & Ethnic Minority Status.
Tract 106.02 (pop. 5,537) — 59th percentile — Near the median
Driven by Household Characteristics (well above) and Housing Type & Transportation (above); near the median on Socioeconomic Status; below the median on Racial & Ethnic Minority Status.
Tract 104.00 (pop. 4,765) — 56th percentile — Near the median
Driven by Socioeconomic Status (above) and Household Characteristics (above); near the median on Housing Type & Transportation; below the median on Racial & Ethnic Minority Status.
Tract 113.00 (pop. 5,133) — 55th 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 127.02 (pop. 2,750) — 55th 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 102.00 (pop. 2,285) — 54th 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 118.03 (pop. 2,366) — 53rd 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 107.02 (pop. 3,415) — 52nd percentile — Near the median
Driven by Household Characteristics (above) and Housing Type & Transportation (well above); below the median on Socioeconomic Status and Racial & Ethnic Minority Status.
Tract 118.02 (pop. 2,706) — 51st 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 117.03 (pop. 2,899) — 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 123.02 (pop. 5,724) — 50th 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 118.01 (pop. 3,331) — 49th 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 108.03 (pop. 5,456) — 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 108.06 (pop. 3,103) — 47th 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 108.05 (pop. 5,443) — 46th percentile — Near 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 110.02 (pop. 4,829) — 46th percentile — Near the median
Near the median on Socioeconomic Status, Household Characteristics and Housing Type & Transportation; below the median on Racial & Ethnic Minority Status.
Tract 123.03 (pop. 3,923) — 46th percentile — Near the median
Driven by Household Characteristics (well above); below the median on Socioeconomic Status, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 125.00 (pop. 1,302) — 42nd 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 122.00 (pop. 6,459) — 42nd percentile — Near the median
Near the median on Socioeconomic Status, Household Characteristics and Housing Type & Transportation; below the median on Racial & Ethnic Minority Status.
Tract 114.03 (pop. 3,426) — 42nd percentile — Near 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.
Below the median — 12 tracts (20th–40th percentile)
Tract 108.04 (pop. 2,261) — 39th percentile — Below the median
Driven by Housing Type & Transportation (above); below the median on Socioeconomic Status, Household Characteristics and Racial & Ethnic Minority Status.
Tract 111.00 (pop. 3,575) — 37th 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.
Tract 124.00 (pop. 3,211) — 37th 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 108.07 (pop. 4,385) — 36th 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 115.01 (pop. 3,457) — 30th percentile — Below the median
Driven by Housing Type & Transportation (above); below the median on Socioeconomic Status, Household Characteristics and Racial & Ethnic Minority Status.
Tract 117.01 (pop. 2,889) — 28th percentile — Below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 126.03 (pop. 3,838) — 28th 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 126.05 (pop. 2,077) — 27th 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 126.04 (pop. 2,302) — 24th percentile — Below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 119.00 (pop. 5,213) — 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 115.02 (pop. 2,641) — 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 114.01 (pop. 4,265) — 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.
Well below the median — 4 tracts (0th–20th percentile)
Tract 106.03 (pop. 1,054) — 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 114.02 (pop. 2,892) — 15th percentile — Well below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 106.01 (pop. 2,576) — 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 110.01 (pop. 1,495) — 10th 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 CA. "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.