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.
Napa County — Social Vulnerability Index
Unofficial CDC-method recomputation, 2020–2024 ACS 5-year
Napa County — Social Vulnerability Index by census tract
Where this is
Shading: Overall SVI Percentile
Lower (4 to 29)Lower-middle (33 to 45)Middle (49 to 70)Upper-middle (70 to 78)Higher (78 to 88)
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: 61st percentile (among all U.S. tracts).
These tracts span the 4th percentile to the 88th percentile. The width of that range is the internal disparity.
Widest spread across these tracts: Socioeconomic Status — 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 — 6 tracts (80th–100th percentile)
Tract 2002.03 (pop. 2,003) — 88th percentile — Well above the median
Driven by Socioeconomic Status (well above), Racial & Ethnic Minority Status (above) and Housing Type & Transportation (well above); below the median on Household Characteristics.
Tract 2003.01 (pop. 6,339) — 85th percentile — Well above the median
Driven by Socioeconomic Status (above), Racial & Ethnic Minority Status (above) and Housing Type & Transportation (well above); near the median on Household Characteristics.
Tract 2016.01 (pop. 2,276) — 84th percentile — Well above the median
Driven by Socioeconomic Status (above), Household Characteristics (well above), Racial & Ethnic Minority Status (above) and Housing Type & Transportation (above).
Tract 2005.04 (pop. 6,617) — 84th percentile — Well above the median
Driven by Socioeconomic Status (above), Racial & Ethnic Minority Status (above) and Housing Type & Transportation (well above); near the median on Household Characteristics.
Tract 2005.01 (pop. 5,441) — 83rd percentile — Well above the median
Driven by Socioeconomic Status (above), Household Characteristics (above), Racial & Ethnic Minority Status (above) and Housing Type & Transportation (well above).
Tract 2005.05 (pop. 2,800) — 82nd percentile — Well above the median
Driven by Socioeconomic Status (above), Household Characteristics (above), Racial & Ethnic Minority Status (above) and Housing Type & Transportation (well above).
Above the median — 15 tracts (60th–80th percentile)
Tract 2013.00 (pop. 3,348) — 79th percentile — Above the median
Driven by Household Characteristics (above) and Housing Type & Transportation (well above); near the median on Socioeconomic Status and Racial & Ethnic Minority Status.
Tract 2010.04 (pop. 6,899) — 78th percentile — Above the median
Driven by Household Characteristics (well above), Racial & Ethnic Minority Status (well above) and Housing Type & Transportation (above); near the median on Socioeconomic Status.
Tract 2020.00 (pop. 5,111) — 78th percentile — Above the median
Driven by Racial & Ethnic Minority Status (above) and Housing Type & Transportation (well above); near the median on Socioeconomic Status and Household Characteristics.
Tract 2012.00 (pop. 4,566) — 78th 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 2002.02 (pop. 2,084) — 77th percentile — Above the median
Driven by Socioeconomic Status (above), Racial & Ethnic Minority Status (above) and Housing Type & Transportation (well above); near the median on Household Characteristics.
Tract 2007.04 (pop. 4,225) — 75th percentile — Above the median
Driven by Socioeconomic Status (above), Household Characteristics (above) and Housing Type & Transportation (above); near the median on Racial & Ethnic Minority Status.
Tract 2006.02 (pop. 4,918) — 73rd percentile — Above the median
Driven by Socioeconomic Status (above), Household Characteristics (above), Racial & Ethnic Minority Status (above) and Housing Type & Transportation (above).
Tract 2002.01 (pop. 3,565) — 72nd percentile — Above the median
Driven by Socioeconomic Status (well above); near the median on Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 2008.04 (pop. 5,633) — 71st percentile — Above the median
Driven by Socioeconomic Status (above), Racial & Ethnic Minority Status (above) and Housing Type & Transportation (above); near the median on Household Characteristics.
Tract 2009.00 (pop. 216) — 70th percentile — Above the median
Driven by Socioeconomic Status (well above); near the median on Racial & Ethnic Minority Status; below the median on Household Characteristics and Housing Type & Transportation.
Tract 2008.02 (pop. 6,071) — 70th 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 2018.00 (pop. 1,343) — 69th percentile — Above the median
Driven by Socioeconomic Status (above) and Household Characteristics (above); near the median on Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 2010.05 (pop. 2,650) — 67th percentile — Above the median
Driven by Socioeconomic Status (above), Household Characteristics (well above) and Racial & Ethnic Minority Status (above); below the median on Housing Type & Transportation.
Tract 2011.02 (pop. 1,838) — 61st percentile — Above the median
Driven by Housing Type & Transportation (above); near the median on Socioeconomic Status, Household Characteristics and Racial & Ethnic Minority Status.
Tract 2010.03 (pop. 5,182) — 61st percentile — Above the median
Driven by Household Characteristics (well above) and Racial & Ethnic Minority Status (well above); near the median on Socioeconomic Status; below the median on Housing Type & Transportation.
Near the median — 5 tracts (40th–60th percentile)
Tract 2003.02 (pop. 2,602) — 57th percentile — Near the median
Driven by Socioeconomic Status (above) and Racial & Ethnic Minority Status (above); near the median on Household Characteristics; below the median on Housing Type & Transportation.
Tract 2015.00 (pop. 1,470) — 50th percentile — Near the median
Driven by Housing Type & Transportation (above); near the median on Household Characteristics and Racial & Ethnic Minority Status; below the median on Socioeconomic Status.
Tract 2007.07 (pop. 3,223) — 49th percentile — Near the median
Driven by Housing Type & Transportation (above); near the median on Household Characteristics and Racial & Ethnic Minority Status; below the median on Socioeconomic Status.
Tract 2014.01 (pop. 2,534) — 45th percentile — Near the median
Driven by Housing Type & Transportation (well above); near the median on Household Characteristics and Racial & Ethnic Minority Status; below the median on Socioeconomic Status.
Tract 2010.07 (pop. 4,039) — 42nd percentile — Near the median
Driven by Household Characteristics (above) and Racial & Ethnic Minority Status (well above); below the median on Socioeconomic Status and Housing Type & Transportation.
Below the median — 10 tracts (20th–40th percentile)
Tract 2010.06 (pop. 3,444) — 40th percentile — Below the median
Driven by Racial & Ethnic Minority Status (above); near the median on Socioeconomic Status; below the median on Household Characteristics and Housing Type & Transportation.
Tract 2019.00 (pop. 1,457) — 38th percentile — Below the median
Driven by Racial & Ethnic Minority Status (above); near the median on Socioeconomic Status; below the median on Household Characteristics and Housing Type & Transportation.
Tract 2016.02 (pop. 3,042) — 37th 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 2017.00 (pop. 4,540) — 35th percentile — 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 2007.05 (pop. 2,822) — 34th percentile — Below 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 2006.01 (pop. 4,554) — 33rd percentile — Below the median
Driven by Racial & Ethnic Minority Status (above); near the median on Household Characteristics; below the median on Socioeconomic Status and Housing Type & Transportation.
Tract 2005.03 (pop. 1,444) — 29th percentile — Below the median
Near the median on Socioeconomic Status and Racial & Ethnic Minority Status; below the median on Household Characteristics and Housing Type & Transportation.
Tract 2008.03 (pop. 2,193) — 24th 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 2007.06 (pop. 2,955) — 24th percentile — Below the median
Driven by Racial & Ethnic Minority Status (above); near the median on Household Characteristics; below the median on Socioeconomic Status and Housing Type & Transportation.
Tract 2011.01 (pop. 1,958) — 24th 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.
Well below the median — 4 tracts (0th–20th percentile)
Tract 2004.00 (pop. 3,360) — 20th percentile — Well below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 2007.03 (pop. 2,987) — 17th 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 2014.02 (pop. 2,555) — 7th percentile — Well below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 2014.03 (pop. 565) — 4th 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.