County Maps US

Lincoln County, Missouri

A county in Missouri, ranked 18 of 115 by population.

CountyFIPS 29113

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

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Population
66,676
+6,834 (+11.4%) since 2020
Land area
626.6
square miles. A further 2.2% of the total area is water
Population density
106
people per square mile, computed rather than published
County seat
Troy
Seat of county government.
Established
1818
207 years ago
Largest city
Troy city
Population 15,201.

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 Lincoln 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 Lincoln 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 631 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 Lincoln 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
Population66,67618th of 115823rd of 3,144
Land area626.6 sq mi48th of 1151,537th of 3,144
Population density106 per sq mi18th of 115864th of 3,144
Median household income$89,2783rd of 115318th of 3,143

Full data for Lincoln County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population66,676Vintage 2025 Population Estimates
Population in 202059,842Vintage 2025 Population Estimates
2020 estimates base?59,564Vintage 2025 Population Estimates
Land area626.6 sq mi2025 Gazetteer Files
Water area13.9 sq mi2025 Gazetteer Files
Total area640.5 sq mi2025 Gazetteer Files
Population density?106 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$89,278American Community Survey 2020-2024 5-Year Estimates
Median home value$244,300American Community Survey 2020-2024 5-Year Estimates
Median age37.5American Community Survey 2020-2024 5-Year Estimates
Households22,817American Community Survey 2020-2024 5-Year Estimates
Housing units23,790American 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
+134
772 births, 638 deaths
Net migration
+767
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 5 areas bordering Lincoln 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
Pike CountyMissouri35 mi17,955
St. Charles CountyMissouri33 mi426,499
Warren CountyMissouri25 mi39,016
Calhoun CountyIllinois22 mi4,300
Montgomery CountyMissouri10 mi11,590

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.