County Maps US

Douglas County, Kansas

A county in Kansas, ranked 5 of 105 by population.

CountyFIPS 20045

Within Kansas
Douglas County, highlighted, with the areas around it. Boundaries generalised from the 2025 Census cartographic boundary file; neighbour fills carry no data. The dot marks Lawrence, the county seat, located via the 2025 Census Gazetteer.

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Population
120,920
+2,139 (+1.8%) since 2020
Land area
455.8
square miles. A further 4.0% of the total area is water
Population density
265
people per square mile, computed rather than published
County seat
Lawrence
Seat of county government.
Established
1855
170 years ago
Largest city
Lawrence city
Population 96,367.

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; Wikidata (CC0), Wikidata. Retrieved 30 August 2026.

Satellite view

Aerial imagery of Douglas County with its boundary drawn on top. A map shows you the shape; this shows you what is inside it, and which side of the line a place falls on.

Aerial view of Douglas County, Kansas from the USGS National Map, with its boundary outlined
Imagery: USGS National Map, USGS Imagery Only, public domain, requested from USGS by your browser when you reach this point on the page, at 800 by 768 pixels. The boundary is the 2025 Census cartographic boundary file, reprojected to Web Mercator to match the imagery. You can also open the USGS National Map viewer.

Where Douglas County ranks

Position among the 105 counties of Kansas, and among all 3,144 US counties and county-equivalents. Computed from the figures on this page.

MeasureValueIn KansasNationally
Population120,9205th of 105536th of 3,144
Land area455.8 sq mi101st of 1052,246th of 3,144
Population density265 per sq mi5th of 105480th of 3,144
Median household income$69,74632nd of 1051,215th of 3,143

Full data for Douglas County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population120,920Vintage 2025 Population Estimates
Population in 2020118,781Vintage 2025 Population Estimates
2020 estimates base?118,785Vintage 2025 Population Estimates
Land area455.8 sq mi2025 Gazetteer Files
Water area18.9 sq mi2025 Gazetteer Files
Total area474.6 sq mi2025 Gazetteer Files
Population density?265 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$69,746American Community Survey 2020-2024 5-Year Estimates
Median home value$309,400American Community Survey 2020-2024 5-Year Estimates
Median age31.6American Community Survey 2020-2024 5-Year Estimates
Households50,406American Community Survey 2020-2024 5-Year Estimates
Housing units53,675American Community Survey 2020-2024 5-Year Estimates

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; US Census Bureau, American Community Survey, American Community Survey 2020-2024 5-Year Estimates, released 29 January 2026. Population density is computed here, not published: it divides the Vintage 2025 population estimate by the 2025 Gazetteer land area, which are two different Census products. Retrieved 30 August 2026.

How the population changed

The Census Bureau publishes the components behind an estimate, not just the total. For the year to July 2025:

Births minus deaths
+104
991 births, 887 deaths
Net migration
-130
More people moved out than moved in.

Source: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026. Retrieved 30 August 2026.

The 7 areas bordering Douglas County

Ordered by the length of the border actually shared, which the Census Bureau publishes in its county adjacency file and which no other county reference presents.

Bordering areaStateShared borderPopulation
Franklin CountyKansas24 mi26,299
Jefferson CountyKansas20 mi18,296
Leavenworth CountyKansas17 mi84,590
Johnson CountyKansas17 mi636,906
Shawnee CountyKansas13 mi178,607
Osage CountyKansas9.0 mi15,693
Miami CountyKansasa single point36,240

Source: US Census Bureau, County Adjacency File, 2025 County Adjacency File, released 15 September 2025. Retrieved 30 August 2026.

All 105 counties of Kansas

Open the interactive Kansas county map, or jump straight to any of them.

Data on this page last rebuilt 30 August 2026. How these figures are produced.