County Maps US

Cass County, Missouri

A county in Missouri, ranked 10 of 115 by population.

CountyFIPS 29037

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

Download SVGFull Missouri map downloads

Population
115,859
+7,699 (+7.1%) since 2020
Land area
696.6
square miles. A further 0.8% of the total area is water
Population density
166
people per square mile, computed rather than published
County seat
Harrisonville
Seat of county government.
Established
1835
190 years ago
Largest city
Raymore city
Population 26,633.

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 Cass 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 Cass County, Missouri 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 756 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 Cass County ranks

Position among the 115 counties of Missouri, and among all 3,144 US counties and county-equivalents. Computed from the figures on this page.

MeasureValueIn MissouriNationally
Population115,85910th of 115556th of 3,144
Land area696.6 sq mi27th of 1151,333rd of 3,144
Population density166 per sq mi14th of 115646th of 3,144
Median household income$87,5355th of 115359th of 3,143

Full data for Cass County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population115,859Vintage 2025 Population Estimates
Population in 2020108,160Vintage 2025 Population Estimates
2020 estimates base?107,824Vintage 2025 Population Estimates
Land area696.6 sq mi2025 Gazetteer Files
Water area5.8 sq mi2025 Gazetteer Files
Total area702.4 sq mi2025 Gazetteer Files
Population density?166 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$87,535American Community Survey 2020-2024 5-Year Estimates
Median home value$292,400American Community Survey 2020-2024 5-Year Estimates
Median age40.4American Community Survey 2020-2024 5-Year Estimates
Households43,206American Community Survey 2020-2024 5-Year Estimates
Housing units45,834American 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
+146
1,243 births, 1,097 deaths
Net migration
+1,780
More people moved in than moved out.

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

The 6 areas bordering Cass 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
Bates CountyMissouri41 mi16,512
Jackson CountyMissouri26 mi732,994
Johnson CountyMissouri22 mi56,670
Miami CountyKansas18 mi36,240
Henry CountyMissouri8.4 mi22,671
Johnson CountyKansas7.5 mi636,906

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

All 115 counties of Missouri

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

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