Chariton County area

Population and density of Chariton County

The Census Bureau estimates that 7,377 people lived in Chariton County on July 1, 2025. That ranks #2,706 of 3,222 county equivalents nationally and #100 of 115 in Missouri. Since the April 1, 2020 estimates base of 7,410, the population has declined by 33 (−0.4%), compared with +1.9% for Missouri as a whole.

With 751.2 square miles of land, that is 9.8 people per square mile (3.8 per km²), placing Chariton County #2,649 nationally for density and #106 in Missouri. The median county equivalent has 47 people per square mile; the Missouri median is 31. Put another way, there are about 65 acres of land per resident.

U.S. Census Bureau, Vintage 2025 population estimates. Estimates are revised each year and are not decennial census counts. Density divides the whole population by the whole county’s land area, so it describes an average, not how settlement is distributed within the county. Population sources and methods.

Cities and towns in Chariton County

10 incorporated places lie at least partly in Chariton County. Together they are home to 3,193 people (43.3%); the other 4,184 (56.7%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Salisbury city, with 1,564 residents in the county. The county seat, Keytesville city, has 446 residents. By land, Marceline city is the largest at 3.281 mi² across all its counties.

Population: U.S. Census Bureau Vintage 2025 subcounty estimates, counting only the part of each place inside Chariton County. Land: 2026 Census Gazetteer, for the whole place even where it extends into other counties. How communities are listed.

Metropolitan area

Chariton County is not part of any metropolitan or micropolitan statistical area in the Office of Management and Budget’s July 2023 delineation; 1,306 other county equivalents are also outside one. These areas are built around an urban core of at least 10,000 people plus the counties tied to it by commuting, so counties outside them are generally rural.

ZIP codes

12 ZIP Code Tabulation Areas have land in Chariton County; 9 of them have most of their land inside the county, and the others mainly cover neighboring areas.

635586462864658646606467664681652366524665254652616528165286

ZIP Code Tabulation Areas are the Census Bureau’s approximations of USPS ZIP Code service areas, from the 2020 Census relationship files. Lighter codes have less than half of their land in this county. Post-office-box and single-address ZIP Codes have no tabulation area.

Counties bordering Chariton County

Chariton County shares a land border with 7 county equivalents. It has more land than 5 of them. The largest neighbor is Macon County (801.2 mi²) and the smallest is Howard County (463.8 mi²). Together with its neighbors, Chariton County forms a block of 5,096.9 mi² of land, of which it holds 14.7%.

How big is Chariton County compared with U.S. states?

Chariton County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 1.4 times as much. Missouri’s county land could hold about 92 areas the size of Chariton County.

Another way to picture it: the same land area would fill a square about 27.4 miles (44.1 km) on each side. Real county shapes are rarely square, so this is a scale reference rather than a width or driving distance.

State figures are the sums of each state’s county-equivalent land measurements in the same Census release, so states and counties are compared on the same basis. Published state totals can differ slightly because of rounding. Compare all states · Counties bigger than entire states.

What stands out about Chariton County?

Chariton County has more land than 2,049 of the other 3,221 county equivalents in the dataset.

A median is the middle county-equivalent measurement, not the average of the largest and smallest. All three bars use the same linear scale. Very small areas may appear as a thin sliver; the labels retain their values.

Does including water change its rank?

Using land plus water places Chariton County at #1,248 nationally by total area, 75 places farther from the top than its land rank. Other county equivalents gain more area when their water measurements are included.

Its water share is 2%, compared with a national county-equivalent median of 1.2% — 0.9 percentage points higher. This describes the statistical geography’s land/water mix, not flood exposure or developable land.

Closest positions in the national land ranking

These entries sit immediately beside Chariton County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Calculated from the same Census release as the area table. Total-area order uses original ALAND + AWATER; water shares and chart labels use published square miles. Calculation details.