Structural Racism & Discrimination Index Data
Explore and download U.S. county-level structural racism and discrimination index data (1990–2020) for research, spatial analysis, and policy evaluation.
SRD Data Sources & Availability
We obtained data from 7 unique nationally representative data sources. See the table below for a snapshot of data sources and their availability by years.
01 Residential Segregation · 2 indicators · Click to expand
| Indicators | 1990 | 2000 | 2010 | 2020 | Data Sources |
|---|---|---|---|---|---|
| Racial Concentration | ✓ | ✓ | ✓ | ✓ | IPUMS National Historical Geographic Information System (NHGIS) |
| Racial Diversity | ✓ | ✓ | ✓ | ✓ | IPUMS National Historical Geographic Information System (NHGIS) |
02 Housing · 2 indicators · Click to expand
| Indicators | 1990 | 2000 | 2010 | 2020 | Data Sources |
|---|---|---|---|---|---|
| Home-Mortgage Loan Denial Gap | ✓ | ✓ | ✓ | ✓ | Federal Financial Institutions Examination Council (FFIEC) |
| Home Ownership Gap | ✓ | ✓ | ✓ | ✓ | IPUMS National Historical Geographic Information System (NHGIS) |
03 Income · 3 indicators · Click to expand
| Indicators | 1990 | 2000 | 2010 | 2020 | Data Sources |
|---|---|---|---|---|---|
| Median Household Income Gap | — | ✓ | ✓ | ✓ | IPUMS National Historical Geographic Information System (NHGIS) |
| Unemployment Gap | ✓ | ✓ | ✓ | ✓ | IPUMS National Historical Geographic Information System (NHGIS) |
| Below-Poverty Gap | ✓ | ✓ | ✓ | ✓ | IPUMS National Historical Geographic Information System (NHGIS) |
04 Healthcare Resources · 4 indicators · Click to expand
| Indicators | 1990 | 2000 | 2010 | 2020 | Data Sources |
|---|---|---|---|---|---|
| Primary Care | — | ✓ | ✓ | ✓ | Health Resources and Services Administration (HRSA) |
| Mental Health Care | ✓ | ✓ | ✓ | ✓ | County Health Rankings (2020 and 2010); Health Resources and Services Administration (HRSA) (2000 and 1990) |
| Dental Health Care | — | — | ✓ | ✓ | Health Resources and Services Administration (HRSA) |
| Health Uninsurance Gap | — | — | ✓ | ✓ | IPUMS National Historical Geographic Information System (NHGIS) |
05 Crime and Incarceration · 5 indicators · Click to expand
| Indicators | 1990 | 2000 | 2010 | 2020 | Data Sources |
|---|---|---|---|---|---|
| Violent Crime Arrests Gap | ✓ | ✓ | ✓ | ✓ | Inter-university Consortium for Political and Social Research (ICPSR), University of Michigan |
| Property Crime Arrests Gap | ✓ | ✓ | ✓ | ✓ | Inter-university Consortium for Political and Social Research (ICPSR), University of Michigan |
| Incarceration Gap | ✓ | ✓ | ✓ | ✓ | Vera Institute of Justice |
| Homicide Fatalities Gap | ✓ | ✓ | ✓ | ✓ | Centers for Disease Control and Prevention (CDC) |
| Firearm Fatalities Gap | ✓ | ✓ | ✓ | ✓ | Centers for Disease Control and Prevention (CDC) |
✓ Available — Not available. Expand a dimension to view its details.
Download SRD Data
Choose a dataset format and download the available SRD data. CSV files offer flexible geographic selection, while geodatabase archives are organized by year.
You will download a zipped folder with: Data, data dictionary, list of data sources, data model figure, and a README file with instructions.
Download the File Geodatabase package for a single reference year. Each dataset will be provided as a ZIP archive.
You will download a zipped folder with: Data, data dictionary, list of data sources, data model figure, and a README file with instructions.
DATA DOCUMENTATION
Documentation & Resources
Find variable definitions, data-source availability, and instructions to support your analysis.
Variable definitions, indicators, and coding conventions for each CSV layout.
Choose the dictionary that matches your download.Review data-source coverage and availability across the 1990–2020 reference years.
View sources PDF↗ Data availability by year and source.Learn how to work with the datasets and interpret missing-value codes.
Open README DOCX↗ Access the complete README and user guide (.docx).Missing Value Codes
The following codes explain why specific observations may be missing, suppressed, or unavailable for calculation.
| Code | Description |
|---|---|
| -111 | Suppressed data due to very low (less than 100) Black or African American population in the county. |
| -222 | Missing data from source. |
| -333 | State-level calculation not applicable for the District of Columbia. |
| -444 | Insufficient data for any calculations (e.g., z-scores, scores, labels). |
What is included?
The SRD framework spans residential segregation, housing, income, healthcare resources, and crime and incarceration. Indicator availability varies by year.
You will download a zipped folder with: Data, data dictionary, list of data sources, data model figure, and a README file with instructions.
Data versions & citation
- •Data Repository: The SRD datasets are hosted on Zenodo, an open-access research data repository.
- •Dataset DOI: To be added following official publication.
- •Suggested Citation: Debarchana Ghosh, Sabina Bhandari, and Cheryl Knott. A Measure for Place-Based Structural Racism and Discrimination Over Time: Version 1.0 SRD Index. 2025.