Montcalm County area

Population and density of Montcalm County

The Census Bureau estimates that 69,406 people lived in Montcalm County on July 1, 2025. That ranks #809 of 3,222 county equivalents nationally and #27 of 83 in Michigan. Since the April 1, 2020 estimates base of 66,627, the population has grown by 2,779 (+4.2%), compared with +0.5% for Michigan as a whole.

With 705.3 square miles of land, that is 98 people per square mile (38 per km²), placing Montcalm County #1,008 nationally for density and #33 in Michigan. The median county equivalent has 47 people per square mile; the Michigan median is 62. Put another way, there are about 6.5 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 Montcalm County

Montcalm County is divided into 23 municipalities and townships. In Michigan, county subdivisions are local governments, and together they cover all of the county’s land and residents.

The most populous is Greenville city, with 9,256 residents (13.3% of the county). The largest by land is Ferris township, at 36 mi², or 5.1% of the county’s land. The county seat, Stanton city, has 1,383 residents. Among those with at least 1,000 residents in 2020, Reynolds township grew fastest since then (+5.2%).

Population: U.S. Census Bureau Vintage 2025 subcounty estimates, counting only the part of each subdivision inside Montcalm County. Land: 2026 Census Gazetteer. How communities are listed.

Metropolitan area

Montcalm County is an outlying county of the Grand Rapids-Wyoming-Kentwood, MI Metropolitan Statistical Area. Its 5 county equivalents have 1,183,645 residents on 3,242.8 square miles of land; Montcalm County accounts for 21.8% of the land and 5.9% of the residents. By combined land it ranks #93 of 393 metropolitan areas, and #50 by population. It belongs to the Grand Rapids-Wyoming, MI Combined Statistical Area.

ZIP codes

25 ZIP Code Tabulation Areas have land in Montcalm County; 16 of them have most of their land inside the county, and the others mainly cover neighboring areas.

48809488114881848829488344883848845488504885248877488844888548886488884888948891493104932249326493294933649337493394934349347

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 Montcalm County

Montcalm County shares a land border with 6 county equivalents. It has more land than 4 of them. The largest neighbor is Kent County (849.5 mi²) and the smallest is Mecosta County (555.2 mi²). Together with its neighbors, Montcalm County forms a block of 4,661.3 mi² of land, of which it holds 15.1%.

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

Montcalm County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 1.5 times as much. Michigan’s county land could hold about 80 areas the size of Montcalm County.

Another way to picture it: the same land area would fill a square about 26.6 miles (42.7 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 Montcalm County?

Montcalm County has more land than 1,910 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 Montcalm County at #1,359 nationally by total area, 47 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 2.1%, compared with a national county-equivalent median of 1.2% — 1 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 Montcalm 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.