County Maps US

Shelby County, Missouri

A county in Missouri, ranked 105 of 115 by population.

CountyFIPS 29205

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

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Population
5,870
-220 (-3.6%) since 2020
Land area
500.9
square miles. A further 0.3% of the total area is water
Population density
11.7
people per square mile, computed rather than published
County seat
Shelbyville
Seat of county government.
Established
1835
190 years ago
Largest city
Shelbina city
Population 1,550.

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 Shelby 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 Shelby 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 795 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 Shelby 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
Population5,870105th of 1152,740th of 3,144
Land area500.9 sq mi82nd of 1152,077th of 3,144
Population density11.7 per sq mi101st of 1152,505th of 3,144
Median household income$51,59497th of 1152,685th of 3,143

Full data for Shelby County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population5,870Vintage 2025 Population Estimates
Population in 20206,090Vintage 2025 Population Estimates
2020 estimates base?6,105Vintage 2025 Population Estimates
Land area500.9 sq mi2025 Gazetteer Files
Water area1.5 sq mi2025 Gazetteer Files
Total area502.3 sq mi2025 Gazetteer Files
Population density?11.7 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$51,594American Community Survey 2020-2024 5-Year Estimates
Median home value$99,900American Community Survey 2020-2024 5-Year Estimates
Median age42.7American Community Survey 2020-2024 5-Year Estimates
Households2,391American Community Survey 2020-2024 5-Year Estimates
Housing units2,950American 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
+2
86 births, 84 deaths
Net migration
-115
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 5 areas bordering Shelby 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
Monroe CountyMissouri28 mi8,959
Macon CountyMissouri24 mi15,190
Marion CountyMissouri20 mi28,525
Knox CountyMissouri18 mi3,728
Lewis CountyMissouri6.0 mi9,879

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.