Social Data Commons: Material Deprivation (v1.0.0)

⚠ Superseded — this version contains a standardization error. Pre-2020 intensive measures were area-averaged across 2010→2020 census-tract boundary splits rather than replicated, distorting their values. Please use the latest version of this record, which corrects the geographic standardization. Overview Townsend Material Deprivation Index for Virginia census tracts, counties, and health districts. Combines four ACS-derived indicators — unemployment rate, overcrowding, non-car ownership, and non-home ownership — into a z-score composite rescaled to 0–1, where higher values indicate greater material deprivation. This dataset is produced by the Social Data Commons at the University of Virginia as part of the Material Deprivation data pipeline. Provenance Based on the Townsend Material Deprivation Index (Townsend, Phillimore & Beattie, 1988), originally developed for the UK Census to measure area-level material deprivation. This pipeline adapts the methodology for U.S. Census ACS variables. The four component indicators (unemployment, overcrowding, non-car ownership, non-home ownership) are computed from ACS 5-year estimates, z-scored within year and geography level, summed, z-scored again, and min-max rescaled to [0, 1]. The VDH Health Opportunity Index includes a similar adaptation of the Townsend index as one of its 13 indicators. Coverage Temporal coverage: 2015–2024 (ACS 5-year estimates) Geographic levels: County, Tract Coverage areas: Virginia (statewide) Methodology Townsend Material Deprivation Index adapted for U.S. Census data. Combines four ACS-derived indicators: (1) unemployment rate (B23025, log-transformed), (2) overcrowding — proportion of occupied housing units with more than 1 person per room (B25014, log-transformed), (3) non-car ownership — proportion of households with no vehicle (B25044), and (4) non-home ownership — proportion of renter-occupied units (S2502). Each indicator is z-scored within year and geography level, summed, the sum is z-scored again, then min-max rescaled to [0, 1]. Higher values indicate greater material deprivation. Computed using 2020 Census geographic boundaries. Townsend Material Deprivation Index adapted for U.S. Census data. Combines four ACS-derived indicators: (1) unemployment rate (B23025, log-transformed), (2) overcrowding — proportion of occupied housing units with more than 1 person per room (B25014, log-transformed), (3) non-car ownership — proportion of households with no vehicle (B25044), and (4) non-home ownership — proportion of renter-occupied units (S2502). Each indicator is z-scored within year and geography level, summed, the sum is z-scored again, then min-max rescaled to [0, 1]. Higher values indicate greater material deprivation. Computed using 2010 Census geographic boundaries. Source Tables ACS 5-Year Estimates, Tables B23025 (Employment Status), B25014 (Tenure by Occupants per Room), B25044 (Tenure by Vehicles Available), and S2502 (Demographic Characteristics for Occupied Housing Units) Variables B23025_002: Adult Pop B23025_005: Unemployed B25014_001: Occupancy All B25014_005: Occupant 1 Plus Per Room Owner B25014_006: Occupant 1 5 Per Room Owner B25014_007: Occupant 2 Plus Per Room Owner B25014_011: Occupant 1 Plus Per Room Renter B25014_012: Occupant 1 5 Per Room Renter B25014_013: Occupant 2 Plus Per Room Renter B25044_001: Households Total B25044_003: Hh Owner No Vehicle B25044_010: Hh Renter No Vehicle S2502_C01_001: All Occupied Units S2502_C05_001: Renter Occupied Units Measures (2) Note on naming conventions: Measures containing _geo20 are computed using 2020 Census geographic boundaries, while those containing _geo10 use 2010 Census geographic boundaries. material_deprivation_indicator_geo20: Material deprivation indicator (2020 geographies) (mean) Townsend Material Deprivation Index (0-1) combining unemployment, overcrowding, non-car ownership, and non-home ownership. material_deprivation_indicator_geo10: Material deprivation indicator (2010 geographies) (mean) Townsend Material Deprivation Index (0-1) combining unemployment, overcrowding, non-car ownership, and non-home ownership. Data Sources U.S. Census Bureau (accessed 2025) File Format Data files are provided as xz-compressed CSV (.csv.xz) with the following columns: geoid, region_type, region_name, year, measure, value, moe (margin of error, where available).