Madison County

OKLocate's data coverage for Madison County includes address level insights, mapping layers, property profiles and census demographics.

Madison County is part of the St. Louis, MO-IL metropolitan statistical area.

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.

Address level data

  • Forward geocoding · Address to rooftop coordinate
  • Reverse geocoding · Coordinate to nearest address
  • 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 · Vector tiles, your own styling
  • Aerial imagery · To zoom 18, 30 cm
  • High-resolution aerial, zoom 16 to 18 · 30 cm
  • 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 · 14 fields per home
  • Roof, solar and pool measurements (Q4 2026)
  • Viewable LiDAR point cloud per home
  • Search the county on any measured field

Demographics

  • Population and households
  • Housing units, owner and renter
  • Median home value and rent
  • Median household income
  • Year built and unit types
  • FEMA flood share and zone breakdown

Madison County by the numbers

Homes measured
100,986
Housing units
119,168
Population
264,238
Owner occupied
81,716
Median home value
$192,694
Median household income
$81,451
Median year built
1973
Census tracts
63
Land area
716 sq mi

Flood zones

None of Madison County's land lies inside a FEMA Special Flood Hazard Area.