AVI 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 903.03 — 97th percentile — Well above the median 3 of 12 flagged
Driven by Demographic Aging Pressure (well above), Housing & Transportation, 65+ ‡ (well above) and Social Isolation (well above); below the median on Economic Precarity, 65+ ‡ and Health, Disability & Isolation ‡.
‡ theme includes at least one flagged input.
Tract 907.04 — 93rd percentile — Well above the median 5 of 12 flagged
Driven by Demographic Aging Pressure (well above), Housing & Transportation, 65+ ‡ (well above) and Social Isolation ‡ (well above); below the median on Economic Precarity, 65+ ‡ and Health, Disability & Isolation ‡.
‡ theme includes at least one flagged input.
Tract 912.01 — 92nd percentile — Well above the median 6 of 12 flagged
Driven by Demographic Aging Pressure ‡ (above), Economic Precarity, 65+ ‡ (above), Health, Disability & Isolation ‡ (well above), Housing & Transportation, 65+ ‡ (well above) and Social Isolation (above).
‡ theme includes at least one flagged input.
Tract 908.01 — 81st percentile — Well above the median 5 of 12 flagged
Driven by Demographic Aging Pressure (above) and Housing & Transportation, 65+ ‡ (well above); near the median on Economic Precarity, 65+ ‡, Health, Disability & Isolation ‡ and Social Isolation ‡.
‡ theme includes at least one flagged input.
Tract 910.01 — 78th percentile — Above the median 7 of 12 flagged
Driven by Demographic Aging Pressure ‡ (above), Housing & Transportation, 65+ ‡ (well above) and Social Isolation ‡ (above); below the median on Economic Precarity, 65+ ‡ and Health, Disability & Isolation ‡.
‡ theme includes at least one flagged input.
Tract 903.04 — 35th percentile — Below the median 7 of 12 flagged
Driven by Economic Precarity, 65+ ‡ (above) and Health, Disability & Isolation ‡ (above); near the median on Housing & Transportation, 65+ ‡; below the median on Demographic Aging Pressure ‡ and Social Isolation ‡.
‡ theme includes at least one flagged input.
Tract 906.01 — 34th percentile — Below the median 7 of 12 flagged
Near the median on Demographic Aging Pressure ‡, Health, Disability & Isolation ‡ and Housing & Transportation, 65+ ‡; below the median on Economic Precarity, 65+ ‡ and Social Isolation ‡.
‡ theme includes at least one flagged input.
Tract 912.02 — 33rd percentile — Below the median 4 of 12 flagged
Driven by Housing & Transportation, 65+ ‡ (above); near the median on Health, Disability & Isolation ‡; below the median on Demographic Aging Pressure, Economic Precarity, 65+ ‡ and Social Isolation.
‡ theme includes at least one flagged input.
Tract 901.02 — 27th percentile — Below the median 6 of 12 flagged
Driven by Housing & Transportation, 65+ ‡ (well above); near the median on Economic Precarity, 65+ ‡; below the median on Demographic Aging Pressure ‡, Health, Disability & Isolation and Social Isolation ‡.
‡ theme includes at least one flagged input.
Tract 911.00 — 26th percentile — Below the median 7 of 12 flagged
Driven by Housing & Transportation, 65+ ‡ (well above); below the median on Demographic Aging Pressure ‡, Economic Precarity, 65+ ‡, Health, Disability & Isolation ‡ and Social Isolation ‡.
‡ theme includes at least one flagged input.
Tract 907.03 — 23rd percentile — Below the median 6 of 12 flagged
Near the median on Demographic Aging Pressure ‡ and Housing & Transportation, 65+ ‡; below the median on Economic Precarity, 65+ ‡, Health, Disability & Isolation and Social Isolation ‡.
‡ theme includes at least one flagged input.
Tract 905.03 — 15th percentile — Well below the median 7 of 12 flagged
Near the median on Economic Precarity, 65+ ‡ and Housing & Transportation, 65+ ‡; below the median on Demographic Aging Pressure ‡, Health, Disability & Isolation ‡ and Social Isolation ‡.
‡ theme includes at least one flagged input.
Tract 902.00 — 15th percentile — Well below the median 3 of 12 flagged
Driven by Housing & Transportation, 65+ ‡ (above); below the median on Demographic Aging Pressure ‡, Economic Precarity, 65+, Health, Disability & Isolation ‡ and Social Isolation.
‡ theme includes at least one flagged input.
Tract 908.02 — 12th percentile — Well below the median 6 of 12 flagged
Near the median on Health, Disability & Isolation ‡; below the median on Demographic Aging Pressure ‡, Economic Precarity, 65+ ‡, Housing & Transportation, 65+ and Social Isolation ‡.
‡ theme includes at least one flagged input.
Tract 904.01 — 8th percentile — Well below the median 7 of 12 flagged
Near the median on Health, Disability & Isolation ‡ and Housing & Transportation, 65+ ‡; below the median on Demographic Aging Pressure ‡, Economic Precarity, 65+ ‡ and Social Isolation ‡.
‡ theme includes at least one flagged input.
Tract 901.01 — 8th percentile — Well below the median 7 of 12 flagged
Near the median on Housing & Transportation, 65+ ‡; below the median on Demographic Aging Pressure ‡, Economic Precarity, 65+ ‡, Health, Disability & Isolation ‡ and Social Isolation ‡.
‡ theme includes at least one flagged input.
Tract 905.01 — 7th percentile — Well below the median 6 of 12 flagged
Below the median on Demographic Aging Pressure ‡, Economic Precarity, 65+ ‡, Health, Disability & Isolation ‡, Housing & Transportation, 65+ ‡ and Social Isolation ‡.
‡ theme includes at least one flagged input.
Tract 910.02 — 7th percentile — Well below the median 8 of 12 flagged
Driven by Health, Disability & Isolation ‡ (above); near the median on Housing & Transportation, 65+ ‡; below the median on Demographic Aging Pressure ‡, Economic Precarity, 65+ ‡ and Social Isolation ‡.
‡ theme includes at least one flagged input.
Tract 909.01 — 5th percentile — Well below the median 7 of 12 flagged
Below the median on Demographic Aging Pressure ‡, Economic Precarity, 65+ ‡, Health, Disability & Isolation ‡, Housing & Transportation, 65+ ‡ and Social Isolation ‡.
‡ theme includes at least one flagged input.
Tract 903.02 — 4th percentile — Well below the median 7 of 12 flagged
Driven by Housing & Transportation, 65+ ‡ (above); below the median on Demographic Aging Pressure ‡, Economic Precarity, 65+ ‡, Health, Disability & Isolation and Social Isolation ‡.
‡ theme includes at least one flagged input.
Tract 904.02 — 4th percentile — Well below the median 6 of 12 flagged
Below the median on Demographic Aging Pressure ‡, Economic Precarity, 65+ ‡, Health, Disability & Isolation ‡, Housing & Transportation, 65+ ‡ and Social Isolation ‡.
‡ theme includes at least one flagged input.
Tract 905.02 — 3rd percentile — Well below the median 6 of 12 flagged
Below the median on Demographic Aging Pressure ‡, Economic Precarity, 65+ ‡, Health, Disability & Isolation ‡, Housing & Transportation, 65+ ‡ and Social Isolation ‡.
‡ theme includes at least one flagged input.
Tract 906.02 — 3rd percentile — Well below the median 6 of 12 flagged
Below the median on Demographic Aging Pressure ‡, Economic Precarity, 65+ ‡, Health, Disability & Isolation, Housing & Transportation, 65+ ‡ and Social Isolation ‡.
‡ theme includes at least one flagged input.
Tract 907.02 — 1st percentile — Well below the median 6 of 12 flagged
Near the median on Housing & Transportation, 65+ ‡; below the median on Demographic Aging Pressure ‡, Economic Precarity, 65+ ‡, Health, Disability & Isolation and Social Isolation ‡.
‡ theme includes at least one flagged input.
Tract 909.02 — 1st percentile — Well below the median 5 of 12 flagged
Below the median on Demographic Aging Pressure ‡, Economic Precarity, 65+ ‡, Health, Disability & Isolation, Housing & Transportation, 65+ ‡ and Social Isolation ‡.
‡ theme includes at least one flagged input.
AVI = a candidate Aging Vulnerability Index, computed by this platform from American Community Survey 2020–2024 5-year estimates, following the same method shape (percentile rank -> theme sum -> re-rank -> overall) as the CDC/ATSDR SVI this platform also recomputes — but AVI itself has no published ground truth to validate against. It is a first-cut, directional design. Percentiles rank each tract against all U.S. tracts.
Several of AVI's 12 input signals carry a documented high margin of error at this grain (most notably lack of health insurance, 65+) and are kept in the index with a flag rather than dropped, to preserve variable coverage. A tract's flag count (shown per-tract above) is a direct measure of how much its rank should be read as directional rather than precise.