Data Sources
CLILU uses authoritative government data sources to provide accurate property records and county statistics. All data comes from public government agencies and is updated regularly.
County Assessor GIS Portals
Parcel DataParcel boundary data, ownership records, and property details sourced from individual county GIS and assessor offices. Each county publishes parcel data through ArcGIS REST endpoints, open data portals, or direct downloads.
US Census Bureau
DemographicsPopulation, demographic, and household income data from the American Community Survey (ACS) and decennial census. Provides county-level statistics including median household income, per capita income, and poverty rates.
https://www.census.govBureau of Labor Statistics (BLS)
EmploymentCounty-level employment data including unemployment rates and labor force statistics from the Local Area Unemployment Statistics (LAUS) program.
https://www.bls.govBureau of Economic Analysis (BEA)
EconomyGross domestic product (GDP) data at the county level, providing insight into local economic output and growth.
https://www.bea.govFEMA
DisastersDisaster declaration history for each county over the past 10 years, including floods, hurricanes, wildfires, and other federally declared disasters.
https://www.fema.govHealth Resources and Services Administration (HRSA)
HealthcareHealth Professional Shortage Area (HPSA) designations and scores, identifying counties with healthcare provider shortages.
https://www.hrsa.govCensus Building Permits Survey
HousingAnnual building permit data including new residential construction permits and housing units authorized, providing insight into housing market activity.
https://www.census.gov/construction/bps/National Renewable Energy Laboratory (NREL)
EnergySolar resource data including average solar irradiance (kWh per square meter per day) for assessing renewable energy potential.
https://www.nrel.govData Quality
We prioritize data accuracy by sourcing directly from government agencies and county offices. County economic data is primarily from 2023 federal datasets. Parcel data freshness varies by county as each jurisdiction publishes on their own schedule.
If you notice any data discrepancies, the authoritative source is always the originating county assessor or federal agency.