St. Louis property data
OKLocate measures 265,197 homes across 8 of the 15 counties in the St. Louis metro. The measured counties are in Illinois. The Missouri counties have geocoding, imagery, flood and census data only.
LiDAR measurements, aerial imagery, typeahead, geocoding and census demographics behind one API key, on one flat monthly rate, and every result is yours to store with no time limit. No other location API puts that combination under permissive licensing.
- Homes measured
- 265,197
- Counties
- 15
- Counties with LiDAR
- 7 of 15
- Land in a flood zone
- 14.0%
Address level data
- Forward geocoding · Every county
- Reverse geocoding · Every county
- Typeahead · About 100 ms
- County FIPS on every result
- Census tract on every result (Q4 2026)
- Place on every result (Q4 2026)
- School district on every result (Q4 2026)
- Legislative districts on every result (Q4 2026)
Mapping
- Base map · Every county
- Aerial imagery · To zoom 15
- High-resolution aerial, zoom 16 to 18 · 8 of 15 counties
- Flood zone boundaries · FEMA NFHL
- School district boundaries
- Place boundaries
- ZIP code boundaries
- Census tract boundaries
- Legislative boundaries (Q4 2026)
Property measurements
- Measured property profiles · 8 of 15 counties
- Roof, solar and pool measurements · 7 of 15 counties
- Viewable LiDAR point cloud per home · 8 of 15 counties
- Search a county on any measured field · 8 of 15 counties
Demographics
- Population and households · Every county
- Housing units, owner and renter
- Median home value and rent
- Median household income
- Year built and unit types
- FEMA flood share and zone breakdown
Flood zones in St. Louis
14.0% of the St. Louis metro's land lies inside a FEMA Special Flood Hazard Area, measured across 15 of its 15 counties and weighted by county land area. This is a map overlay for analysis, not a flood determination.
Counties
- Madison County, Illinois100,986 homes
- St. Clair County, Illinois79,645 homes
- Clinton County, Illinois22,656 homes
- Macoupin County, Illinois22,121 homes
- Monroe County, Illinois16,474 homes
- Jersey County, Illinois11,465 homes
- Bond County, Illinois9,795 homes
- Calhoun County, Illinois2,055 homes
- Franklin County, MissouriNot measured
- Jefferson County, MissouriNot measured
- Lincoln County, MissouriNot measured
- St. Charles County, MissouriNot measured
- St. Louis County, MissouriNot measured
- Warren County, MissouriNot measured
- St. Louis city, MissouriNot measured
St. Louis, MO-IL, CBSA 41180. County membership from the OMB delineation; population from the Census Vintage 2025 estimates.