Douglas County area

Douglas County, Minnesota covers 720.2 square miles: 636.9 square miles of land and 83.3 square miles of water. Its county seat is Alexandria. An estimated 40,120 people lived there in 2025.

Official Census measurements · GEOID 270412026 Gazetteer · retrieved September 27, 2026
Land area636.9 mi²
Water area83.3 mi²
Population (2025)40,120
People per mi²63

County outline

Generalized outline of Douglas County, Minnesota
2025 Census cartographic boundary, fitted to this frame. County maps are not at a common scale. The 2026 area measurements below come from the separate Gazetteer release. Map source and limitations.

Where Douglas County is located

Douglas County highlighted on a map of all U.S. county equivalents. About the maps

Area breakdown

Land accounts for 88.4% of Douglas County’s measured area and water for 11.6%. Its combined area converts to 1,865.3 square kilometers or approximately 460,914 acres.

Green: land · blue: water

MeasurementSquare milesSquare kilometersAcres
Land636.8821,649.517407,604.5
Water83.296215.73653,309.4
Total720.1781,865.252460,913.9

How Douglas County compares

By original Census land area, Douglas County ranks #48 of 87 in Minnesota and #1496 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.

Its land area is 0.944 times the Minnesota county-equivalent median of 674.6 square miles. It accounts for 0.8% of the combined county land area in the state.

See the complete Minnesota ranking · What counts as a county equivalent?

Population and density of Douglas County

The Census Bureau estimates that 40,120 people lived in Douglas County on July 1, 2025. That ranks #1,208 of 3,222 county equivalents nationally and #27 of 87 in Minnesota. Since the April 1, 2020 estimates base of 39,004, the population has grown by 1,116 (+2.9%), compared with +2.2% for Minnesota as a whole.

With 636.9 square miles of land, that is 63 people per square mile (24 per km²), placing Douglas County #1,352 nationally for density and #25 in Minnesota. The median county equivalent has 47 people per square mile; the Minnesota median is 27. Put another way, there are about 10 acres of land per resident.

Estimated population, 2020–2025 · line scaled to this county’s own range
July 1202020212022202320242025
Estimate39,09539,31239,66239,87339,95340,120
Change—+217+350+211+80+167

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 Douglas County

Douglas County is divided into 31 municipalities and townships. In Minnesota, county subdivisions are local governments, and together they cover all of the county’s land and residents.

The most populous is Alexandria city, with 15,045 residents (37.5% of the county). The largest by land is Spruce Hill township, at 35.9 mi², or 5.6% of the county’s land. Among those with at least 1,000 residents in 2020, Alexandria township grew fastest since then (+5.2%).

County subdivisionPopulation 2025Since 2020Land mi²Share of county land
Alexandria cityCounty seat15,045+4.6%17.22.7%
La Grand township4,309+1.8%24.93.9%
Alexandria townshipCounty seat3,114+5.2%19.23%
Carlos township2,261+1.8%304.7%
Osakis city1,599−1.7%1.5950.3%
Ida township1,432+1.8%284.4%
Lake Mary township1,185+2%28.14.4%
Hudson township962+2%33.25.2%
Miltona township936+2%27.14.3%
Holmes City township812+1.9%30.84.8%
Moe township781+2.1%30.44.8%
Brandon township779+2%30.54.8%
Osakis township704+2%31.44.9%
Evansville city584−2.7%0.7840.1%
Brandon city509+1.4%0.4830.1%
Show the other 16 subdivisions
NamePopulation 2025Since 2020Land mi²
Carlos city482−3.2%0.449
Spruce Hill township471+2.2%35.9
Miltona city454+5.3%0.671
Millerville township419+1.9%32
Leaf Valley township413+1.7%33.5
Lund township353+1.7%28.3
Orange township352+1.7%34.7
Belle River township345+1.5%35.8
Garfield city339−2.3%0.805
Urness township277+1.8%31.9
Kensington city270+1.5%0.358
Solem township236+1.3%34.2
Evansville township227+2.3%32.6
Forada city187+9.4%0.537
Nelson city186+2.8%0.661
Millerville city97−3%0.861

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

Metropolitan area

Douglas County is a central county of the Alexandria, MN Micropolitan Statistical Area. Douglas County is the area’s only county equivalent, so the micro area has the same 636.9 square miles of land. By combined land it ranks #331 of 542 micropolitan areas, and #319 by population.

ZIP codes

17 ZIP Code Tabulation Areas have land in Douglas County; 8 of them have most of their land inside the county, and the others mainly cover neighboring areas.

5630856309563155631956326563275633256334563395634356349563545635556360563615638556446

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 Douglas County

Douglas County shares a land border with 5 county equivalents. It has more land than 1 of them. The largest neighbor is Otter Tail County (1,971.6 mi²) and the smallest is Grant County (547.8 mi²). Together with its neighbors, Douglas County forms a block of 6,118.9 mi² of land, of which it holds 10.4%.

Map of Douglas County and the 5 county equivalents that border it Otter Tail County, Minnesota: 1,971.6 mi² landPope County, Minnesota: 674.6 mi² landGrant County, Minnesota: 547.8 mi² landTodd County, Minnesota: 945.1 mi² landStearns County, Minnesota: 1,342.9 mi² land
Douglas County (dark) and its bordering county equivalents. Select a neighbor to open its profile. Drawn from the 2025 Census cartographic boundaries in an equal-area projection. How borders are determined.
Bordering county equivalentLand mi²Size vs. DouglasCompare
Otter Tail County1,971.63.1× largerCompare
Stearns County1,342.92.1× largerCompare
Todd County945.11.5× largerCompare
Pope County674.61.1× largerCompare
Grant County547.81.2× smallerCompare

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

Douglas County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 1.6 times as much. Minnesota’s county land could hold about 125 areas the size of Douglas County.

Land area: Douglas County and the closest-sized states
Douglas County636.9 mi²
Rhode Island1,033.9 mi²

Another way to picture it: the same land area would fill a square about 25.2 miles (40.6 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 Douglas County?

Douglas County has more land than 1,726 of the other 3,221 county equivalents in the dataset.

Land area compared with the typical county equivalent
Douglas County636.9 mi²
Minnesota median674.6 mi²
National median604.5 mi²

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 Douglas County at #1,363 nationally by total area, 133 places closer to the top than its land rank. The water assigned to this geography moves it ahead of some county equivalents with more land.

Its water share is 11.6%, compared with a national county-equivalent median of 1.2% — 10.4 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 Douglas County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Land rankCounty equivalentLand mi²Comparison
#1495Genesee County, Michigan636.9Compare
#1496Douglas County, Minnesota636.9This county
#1497DeSoto County, Florida636.7Compare

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.

Representative coordinates

The Census internal point is 45.936757, -95.461572. It represents a location inside the geography; it is not necessarily the centroid or the address of a courthouse.

Source and precision

U.S. Census Bureau, 2026 Gazetteer Files, Counties. Original ALAND: 1,649,517,455 m²; AWATER: 215,735,297 m². Rankings use ALAND; exact ties use ascending GEOID. Tables preserve Census-published square miles to three decimals, with conversions based on those values.

Download the official county source ZIP ↗ · Methodology

Common questions

How big is Douglas County?

Douglas County, Minnesota has 636.9 square miles (1,649.5 km²) of land and 83.3 square miles of water, for a total area of 720.2 square miles. It ranks #1496 of 3,222 U.S. county equivalents by land area.

Is Douglas County the largest county in Minnesota?

No. Douglas County ranks #48 of 87 in Minnesota by land area. The largest is St. Louis County, with 6,248.1 square miles of land.

What counties border Douglas County?

Douglas County shares a land border with Otter Tail County, Pope County, Grant County, Todd County, and Stearns County.

What is the population of Douglas County?

The Census Bureau estimates Douglas County had 40,120 residents on July 1, 2025, ranking #1,208 of 3,222 county equivalents. That is 63 people per square mile of land.

What is the county seat of Douglas County?

The county seat of Douglas County is Alexandria.

What cities and towns are in Douglas County?

Douglas County has 31 county subdivisions (cities, towns and townships). The most populous five are Alexandria city, La Grand township, Alexandria township, Carlos township, and Osakis city.

Is Douglas County part of a metropolitan area?

Yes. It is a central county of the Alexandria, MN Micropolitan Statistical Area.

How many ZIP codes are in Douglas County?

17 ZIP Code Tabulation Areas have land in Douglas County, and 8 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.

How does Douglas County compare with U.S. states?

It has less land than every state. Rhode Island, the smallest, has 1.6 times as much land.

How many acres of land are in Douglas County?

The land measurement converts to approximately 407,604 acres. Including water, total area is approximately 460,914 acres. One square mile equals 640 acres.

Why might another source show a different area?

Check whether it reports land or total area, its Census vintage, and its rounding. Our guide explains how to reconcile county area figures.

Can this establish a property boundary?

No. Statistical measurements and generalized maps do not establish property lines. Consult the relevant local surveying or land-records authority.

Cite this county

Download the complete CSV or JSON dataset