Mecosta County, Michigan

County seat: Big Rapids · Population 42,320 (2025) · 555 sq mi

Mecosta County is the 39th most populous of Michigan's 83 counties, with 42,320 people (2025 estimate). Its county seat is Big Rapids. It is part of the West (Region 4) region, one of the 10 Michigan prosperity regions. The map shows its 5 cities and towns and the 6 neighboring counties.

Map of Mecosta County, Michigan with cities, towns and the county boundary
Mecosta County, Michigan with its cities and towns, unincorporated communities (CDPs) and neighboring counties. Boundaries: U.S. Census Bureau, 2025. Free to use with attribution (CC BY 4.0).

Mecosta County facts

County seat
Big Rapids
Population (2025 estimate)
42,320 +4.9% since 2020
Land area
555 sq mi 57th largest of 83
Water area
16 sq mi
Population density
76 per sq mi
Established
1840
Named after
Mecosta Potawatomi chief
Largest city
Big Rapids 8,623
Median household income
$60,951
Cities and towns
5 plus 2 CDPs
ZIP codes
17
Time zone
Eastern
FIPS code
26107

Cities and towns in Mecosta County

Mecosta County has 5 incorporated cities, towns and villages. Populations count the people living inside Mecosta County; cities that cross a county line also list the other counties.

NameTypePopulation 2025Also in
Big Rapids (county seat)City8,623
MorleyVillage535
MecostaVillage484
BarrytonVillage415
StanwoodVillage212

Unincorporated communities (CDPs)

Census-designated places are communities without their own city government; the county provides their services.

CommunityPopulationAlso in
Canadian Lakes2,991
Paris202

ZIP codes in Mecosta County

17 ZIP codes reach into Mecosta County. ZIP codes ignore county lines, so some also cover a neighboring county.

Population of Mecosta County, 2020–2025

Mecosta County grew by 1,988 people (+4.9%) between April 2020 and July 2025: 269 more deaths than births and a net gain of 2,215 people from migration.

Year (July 1)Population
202040,414
202140,674
202241,393
202341,715
202441,932
202542,320

Neighboring counties

Printable Mecosta County map

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Sources

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