Dickinson County area

Population and density of Dickinson County

The Census Bureau estimates that 25,827 people lived in Dickinson County on July 1, 2025. That ranks #1,637 of 3,222 county equivalents nationally and #55 of 83 in Michigan. Since the April 1, 2020 estimates base of 25,945, the population has declined by 118 (−0.5%), compared with +0.5% for Michigan as a whole.

With 761 square miles of land, that is 34 people per square mile (13 per km²), placing Dickinson County #1,896 nationally for density and #63 in Michigan. The median county equivalent has 47 people per square mile; the Michigan median is 62. Put another way, there are about 19 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 Dickinson County

Dickinson County is divided into 10 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 Iron Mountain city, with 7,469 residents (28.9% of the county). The largest by land is Sagola township, at 159.6 mi², or 21% of the county’s land. Among those with at least 1,000 residents in 2020, Breitung charter township grew fastest since then (+0.2%).

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

Metropolitan area

Dickinson County is a central county of the Iron Mountain, MI-WI Micropolitan Statistical Area. Its 2 county equivalents have 30,575 residents on 1,249 square miles of land; Dickinson County accounts for 60.9% of the land and 84.5% of the residents. By combined land it ranks #138 of 542 micropolitan areas, and #430 by population. It belongs to the Marinette-Iron Mountain, WI-MI Combined Statistical Area.

ZIP codes

11 ZIP Code Tabulation Areas have land in Dickinson County, and each lies mostly inside the county.

4980149802498154983149834498524987049876498774988149892

ZIP Code Tabulation Areas are the Census Bureau’s approximations of USPS ZIP Code service areas, from the 2020 Census relationship files. Post-office-box and single-address ZIP Codes have no tabulation area.

Counties bordering Dickinson County

Dickinson County shares a land border with 5 county equivalents, including 2 in Wisconsin. It has more land than 1 of them. The largest neighbor is Marquette County (1,809.1 mi²) and the smallest is Florence County (488 mi²). Together with its neighbors, Dickinson County forms a block of 6,667.7 mi² of land, of which it holds 11.4%.

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

Dickinson 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. Michigan’s county land could hold about 74 areas the size of Dickinson County.

Another way to picture it: the same land area would fill a square about 27.6 miles (44.4 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 Dickinson County?

Dickinson County has more land than 2,074 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 Dickinson County at #1,224 nationally by total area, 76 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% — 0.8 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 Dickinson 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.