Source catalog
The public APIs and datasets behind the network.
DataByCounty prioritizes official government and government-adjacent sources with county coverage, stable documentation, public access, and clear refresh behavior.
19
Sources tracked
22
Metric receipts
0
Proprietary inputs
American Community Survey 5-year
U.S. Census Bureau
Core source for housing, tax, income, rent, and education context.
Crime Data API and UCR summaries
Federal Bureau of Investigation
Coverage varies by reporting agency and year.
County Health Rankings
CDC, University of Wisconsin Population Health Institute
Curated county health outcomes and factors.
PLACES local health estimates
Centers for Disease Control and Prevention
Model-based chronic disease and social determinant estimates.
National Risk Index
Federal Emergency Management Agency
Natural hazard risk, expected annual loss, social vulnerability, and resilience.
NCES and Education Data Explorer
National Center for Education Statistics
School finance, enrollment, completion, and public education context.
Safe Drinking Water Information System
U.S. Environmental Protection Agency
Drinking water violations and system compliance.
ATTAINS assessments
U.S. Environmental Protection Agency
Clean Water Act assessment and impairment status.
Water Quality Portal
EPA, USGS, state, tribal, and local agencies
Discrete water-quality monitoring metadata and result summaries.
National Water Information System
U.S. Geological Survey
Streamflow instantaneous values and approved statistics.
NCEI climate and normals
NOAA National Centers for Environmental Information
Climate normals, precipitation, temperature, and weather summaries.
National Weather Service API
National Weather Service
Forecast zones, alert history, and weather office metadata.
SSURGO soil survey
U.S. Department of Agriculture
Soil texture, pH, drainage, hydrologic group, and available water capacity.
Plant Hardiness Zone Map
U.S. Department of Agriculture
Plant hardiness zones and minimum winter temperature ranges.
U.S. Drought Monitor
National Drought Mitigation Center, NOAA, USDA
Current drought intensity and trailing drought exposure.
USAspending API
U.S. Treasury
Federal contracts, grants, loans, agencies, and fiscal-year totals.
National Plan and Provider Enumeration System
Centers for Medicare and Medicaid Services
Provider counts and density for primary care, dentistry, and advanced practice.
ByCounty score model
ByCounty Network
Normalized county scores derived from source metrics.