MN · GEOID 27021

Cass County area

Cass County, Minnesota covers 2,414 square miles: 2,021.5 square miles of land and 392.5 square miles of water.

Official Census measurements2026 Gazetteer · retrieved September 27, 2026
Land area2,021.5 mi²
Water area392.5 mi²
Total area2,414 mi²
National land rank#282

County outline

Generalized outline of Cass 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 Cass County is located

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

Area breakdown

Land accounts for 83.7% of Cass County’s measured area and water for 16.3%. Its combined area converts to 6,252.1 square kilometers or approximately 1,544,934 acres.

Green: land · blue: water

MeasurementSquare milesSquare kilometersAcres
Land2,021.4735,235.5911,293,742.7
Water392.4871,016.537251,191.7
Total2,413.966,252.1281,544,934.4

How Cass County compares

By original Census land area, Cass County ranks #6 of 87 in Minnesota and #282 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.

Its land area is 2.997 times the Minnesota county-equivalent median of 674.6 square miles. It accounts for 2.5% of the combined county land area in the state.

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

What stands out about Cass County?

Cass County has more land than 2,940 of the other 3,221 county equivalents in the dataset.

Land area compared with the typical county equivalent
Cass County2,021.5 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 Cass County at #244 nationally by total area, 38 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 16.3%, compared with a national county-equivalent median of 1.2% — 15.1 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 Cass County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Land rankCounty equivalentLand mi²Comparison
#281Montezuma County, Colorado2,029.3Compare
#282Cass County, Minnesota2,021.5This county
#283Ward County, North Dakota2,013Compare

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 46.951745, -94.333705. 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: 5,235,589,551 m²; AWATER: 1,016,536,746 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 many acres of land are in Cass County?

The land measurement converts to approximately 1,293,743 acres. Including water, total area is approximately 1,544,934 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