County Maps US

Monroe County, Missouri

A county in Missouri, ranked 93 of 115 by population.

CountyFIPS 29137

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

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Population
8,959
+267 (+3.1%) since 2020
Land area
647.6
square miles. A further 3.4% of the total area is water
Population density
13.8
people per square mile, computed rather than published
County seat
Paris
Seat of county government.
Established
1831
194 years ago
Largest city
Monroe City city
Population 2,175 for the whole place, which extends beyond this county.

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 Monroe 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 Monroe 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 589 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 Monroe 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
Population8,95993rd of 1152,494th of 3,144
Land area647.6 sq mi42nd of 1151,457th of 3,144
Population density13.8 per sq mi95th of 1152,430th of 3,144
Median household income$54,51681st of 1152,504th of 3,143

Full data for Monroe County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population8,959Vintage 2025 Population Estimates
Population in 20208,692Vintage 2025 Population Estimates
2020 estimates base?8,667Vintage 2025 Population Estimates
Land area647.6 sq mi2025 Gazetteer Files
Water area22.5 sq mi2025 Gazetteer Files
Total area670.2 sq mi2025 Gazetteer Files
Population density?13.8 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$54,516American Community Survey 2020-2024 5-Year Estimates
Median home value$149,300American Community Survey 2020-2024 5-Year Estimates
Median age45.7American Community Survey 2020-2024 5-Year Estimates
Households3,468American Community Survey 2020-2024 5-Year Estimates
Housing units4,467American 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
-18
88 births, 106 deaths
Net migration
+120
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 Monroe 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
Audrain CountyMissouri32 mi24,528
Shelby CountyMissouri28 mi5,870
Ralls CountyMissouri22 mi10,444
Randolph CountyMissouri18 mi24,513
Marion CountyMissouri7.0 mi28,525
Macon CountyMissouri440 ft15,190

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.