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

Northumberland Count — Social Vulnerability Index

Unofficial CDC-method recomputation, 2020–2024 ACS 5-year
Northumberland Count — Social Vulnerability Index by census tract
Tract 801.00 — 36 (Lower-middle)Tract 802.00 — 44 (Middle)Tract 803.01 — 23 (Lower)Tract 803.02 — 71 (Higher)Tract 805.00 — 62 (Upper-middle)Tract 806.00 — 47 (Middle)Tract 807.00 — 12 (Lower)Tract 808.00 — 7 (Lower)Tract 809.00 — 42 (Middle)Tract 810.00 — 34 (Lower-middle)Tract 811.00 — 56 (Upper-middle)Tract 812.00 — 58 (Upper-middle)Tract 813.00 — 30 (Lower-middle)Tract 814.00 — 39 (Middle)Tract 815.00 — 62 (Upper-middle)Tract 816.00 — 32 (Lower-middle)Tract 817.00 — 73 (Higher)Tract 818.00 — 16 (Lower)Tract 819.00 — 18 (Lower)Tract 820.00 — 73 (Higher)Tract 821.00 — 70 (Higher)Tract 822.00 — 78 (Higher)Tract 823.00 — 30 (Lower-middle)Tract 824.00 — 53 (Upper-middle)Tract 804.00 — 45 (Middle)
Where this is
Shading: Overall SVI Percentile
Lower (7 to 23)Lower-middle (30 to 36)Middle (39 to 47)Upper-middle (53 to 62)Higher (70 to 78)
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.
Median tract: 44th percentile (among all U.S. tracts).
These tracts span the 7th percentile to the 78th percentile. The width of that range is the internal disparity.
Tract 804.00 is marked below — Near the median.
Well above the median0 (0%) · 0 people
Above the median7 (28%) · 21,894 people
Near the median7 (28%) · 28,255 people ◀ Tract 804.00
Below the median7 (28%) · 20,910 people
Well below the median4 (16%) · 19,501 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 822.00 (pop. 3,829) — 78th percentile — Above the median
Driven by Household Characteristics (well above) and Housing Type & Transportation (well above); near the median on Socioeconomic Status; below the median on Racial & Ethnic Minority Status.
Tract 820.00 (pop. 3,308) — 73rd 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 817.00 (pop. 1,968) — 73rd percentile — Above the median
Driven by Socioeconomic Status (well above) and Household Characteristics (well above); near the median on Racial & Ethnic Minority Status; below the median on Housing Type & Transportation.
Tract 803.02 (pop. 4,158) — 71st 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 821.00 (pop. 2,480) — 70th 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 815.00 (pop. 2,346) — 62nd percentile — Above 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 805.00 (pop. 3,805) — 62nd percentile — Above the median
Driven by Household Characteristics (well above) and Housing Type & Transportation (above); below the median on Socioeconomic Status and Racial & Ethnic Minority Status.
Tract 812.00 (pop. 6,033) — 58th percentile — Near the median
Driven by Housing Type & Transportation (well above); near the median on Socioeconomic Status and Racial & Ethnic Minority Status; below the median on Household Characteristics.
Tract 811.00 (pop. 2,804) — 56th 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 824.00 (pop. 2,724) — 53rd percentile — Near the median
Driven by Household Characteristics (well above); near the median on Socioeconomic Status and Housing Type & Transportation; below the median on Racial & Ethnic Minority Status.
Tract 806.00 (pop. 3,866) — 47th 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 804.00 (pop. 3,150) — 45th 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 802.00 (pop. 6,599) — 44th 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 809.00 (pop. 3,079) — 42nd percentile — Near 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.
Tract 814.00 (pop. 1,658) — 39th 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 801.00 (pop. 4,334) — 36th 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 810.00 (pop. 2,873) — 34th 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 816.00 (pop. 2,539) — 32nd 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 813.00 (pop. 2,078) — 30th 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 823.00 (pop. 4,981) — 30th 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 803.01 (pop. 2,447) — 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 819.00 (pop. 5,960) — 18th percentile — Well below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 818.00 (pop. 3,340) — 16th percentile — Well below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 807.00 (pop. 3,391) — 12th percentile — Well below the median
Below the median on Socioeconomic Status, Household Characteristics, Racial & Ethnic Minority Status and Housing Type & Transportation.
Tract 808.00 (pop. 6,810) — 7th 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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