County Maps US

Cooper County, Missouri

A county in Missouri, ranked 63 of 115 by population.

CountyFIPS 29053

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

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Population
17,136
+493 (+3.0%) since 2020
Land area
564.7
square miles. A further 0.8% of the total area is water
Population density
30.3
people per square mile, computed rather than published
County seat
Boonville
Seat of county government.
Established
1818
207 years ago
Largest city
Boonville city
Population 7,867.

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 Cooper 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 Cooper 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 714 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 Cooper 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
Population17,13663rd of 1151,969th of 3,144
Land area564.7 sq mi62nd of 1151,818th of 3,144
Population density30.3 per sq mi59th of 1151,920th of 3,144
Median household income$70,62521st of 1151,152nd of 3,143

Full data for Cooper County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population17,136Vintage 2025 Population Estimates
Population in 202016,643Vintage 2025 Population Estimates
2020 estimates base?17,101Vintage 2025 Population Estimates
Land area564.7 sq mi2025 Gazetteer Files
Water area4.4 sq mi2025 Gazetteer Files
Total area569.2 sq mi2025 Gazetteer Files
Population density?30.3 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$70,625American Community Survey 2020-2024 5-Year Estimates
Median home value$203,500American Community Survey 2020-2024 5-Year Estimates
Median age40.5American Community Survey 2020-2024 5-Year Estimates
Households6,246American Community Survey 2020-2024 5-Year Estimates
Housing units7,300American 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
+1
173 births, 172 deaths
Net migration
0
Arrivals and departures balanced.

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

The 6 areas bordering Cooper 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
Moniteau CountyMissouri30 mi15,428
Howard CountyMissouri24 mi10,180
Pettis CountyMissouri16 mi44,254
Morgan CountyMissouri12 mi22,418
Saline CountyMissouri12 mi23,265
Boone CountyMissouri4.7 mi191,746

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.