Cowlitz County

OKLocate's data coverage for Cowlitz County includes address level insights, mapping layers, property profiles (coming Q4 2026) and census demographics.

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 15
  • High-resolution aerial, zoom 16 to 18 (Q4 2026)
  • 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 (Q4 2026)
  • Roof, solar and pool measurements (Q4 2026)
  • Viewable LiDAR point cloud per home (Q4 2026)
  • Search the county on any measured field (Q4 2026)

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

Cowlitz County by the numbers

Housing units
46,422
Population
112,360
Owner occupied
29,876
Median home value
$402,064
Median household income
$80,534
Median year built
1977
Census tracts
30
Land area
1,141 sq mi

Flood zones

3.6% of Cowlitz County's land lies inside a FEMA Special Flood Hazard Area. That is higher than 36% of US counties. The largest zones are X at 12% and AE at 2.4%. This is a map overlay for analysis, not a flood determination.

Zone X
11.54%
Zone AE
2.36%
Zone A
1.29%