Nelson County area

Nelson County, North Dakota covers 1,008.9 square miles: 981.8 square miles of land and 27.1 square miles of water. Its county seat is Lakota. An estimated 2,963 people lived there in 2025.

Official Census measurements · GEOID 380632026 Gazetteer · retrieved September 27, 2026
Land area981.8 mi²
Water area27.1 mi²
Population (2025)2,963
People per mi²3

County outline

Generalized outline of Nelson County, North Dakota
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 Nelson County is located

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

Area breakdown

Land accounts for 97.3% of Nelson County’s measured area and water for 2.7%. Its combined area converts to 2,613 square kilometers or approximately 645,677 acres.

Green: land · blue: water

MeasurementSquare milesSquare kilometersAcres
Land981.8152,542.889628,361.6
Water27.05670.07517,315.8
Total1,008.8712,612.964645,677.4

How Nelson County compares

By original Census land area, Nelson County ranks #41 of 53 in North Dakota and #703 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.

Its land area is 0.845 times the North Dakota county-equivalent median of 1,161.8 square miles. It accounts for 1.4% of the combined county land area in the state.

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

Population and density of Nelson County

The Census Bureau estimates that 2,963 people lived in Nelson County on July 1, 2025. That ranks #3,035 of 3,222 county equivalents nationally and #34 of 53 in North Dakota. Since the April 1, 2020 estimates base of 3,014, the population has declined by 51 (−1.7%), compared with +2.6% for North Dakota as a whole.

With 981.8 square miles of land, that is 3 people per square mile (1.2 per km²), placing Nelson County #2,980 nationally for density and #31 in North Dakota. The median county equivalent has 47 people per square mile; the North Dakota median is 3.7. Put another way, there are about 212 acres of land per resident.

Estimated population, 2020–2025 · line scaled to this county’s own range
July 1202020212022202320242025
Estimate2,9933,0422,9952,9822,9472,963
Change—+49−47−13−35+16

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 Nelson County

7 incorporated places lie at least partly in Nelson County. Together they are home to 1,923 people (64.9%); the other 1,040 (35.1%) live outside any incorporated place, in unincorporated communities and rural areas.

The largest is Lakota city, with 683 residents in the county. By land, McVille city is the largest at 1.436 mi².

Incorporated placePopulation 2025Since 2020Land mi²
Lakota cityCounty seat683−0.3%0.999
McVille city386−2.3%1.436
Michigan City city258−1.9%0.503
Aneta city233−2.1%0.995
Petersburg city157−2.5%1.028
Tolna city132−2.2%0.752
Pekin city74−1.3%0.253

Population: U.S. Census Bureau Vintage 2025 subcounty estimates, counting only the part of each place inside Nelson County. Land: 2026 Census Gazetteer, for the whole place even where it extends into other counties. How communities are listed.

Metropolitan area

Nelson County is not part of any metropolitan or micropolitan statistical area in the Office of Management and Budget’s July 2023 delineation; 1,306 other county equivalents are also outside one. These areas are built around an urban core of at least 10,000 people plus the counties tied to it by commuting, so counties outside them are generally rural.

ZIP codes

10 ZIP Code Tabulation Areas have land in Nelson County; 6 of them have most of their land inside the county, and the others mainly cover neighboring areas.

58212582245825458259582665827258321583445836158380

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 Nelson County

Nelson County shares a land border with 7 county equivalents. It has more land than 3 of them. The largest neighbor is Grand Forks County (1,436.2 mi²) and the smallest is Eddy County (630.2 mi²). Together with its neighbors, Nelson County forms a block of 8,324.6 mi² of land, of which it holds 11.8%.

Map of Nelson County and the 7 county equivalents that border it Grand Forks County, North Dakota: 1,436.2 mi² landRamsey County, North Dakota: 1,185.4 mi² landGriggs County, North Dakota: 708.7 mi² landWalsh County, North Dakota: 1,281.6 mi² landEddy County, North Dakota: 630.2 mi² landSteele County, North Dakota: 712.1 mi² landBenson County, North Dakota: 1,388.6 mi² land
Nelson 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. NelsonCompare
Grand Forks County1,436.21.5× largerCompare
Benson County1,388.61.4× largerCompare
Walsh County1,281.61.3× largerCompare
Ramsey County1,185.41.2× largerCompare
Steele County712.11.4× smallerCompare
Griggs County708.71.4× smallerCompare
Eddy County630.21.6× smallerCompare

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

Nelson County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 1.1 times as much. North Dakota’s county land could hold about 70 areas the size of Nelson County.

Land area: Nelson County and the closest-sized states
Nelson County981.8 mi²
Rhode Island1,033.9 mi²

Another way to picture it: the same land area would fill a square about 31.3 miles (50.4 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 Nelson County?

Nelson County has more land than 2,519 of the other 3,221 county equivalents in the dataset.

Land area compared with the typical county equivalent
Nelson County981.8 mi²
North Dakota median1,161.8 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 Nelson County at #763 nationally by total area, 60 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 2.7%, compared with a national county-equivalent median of 1.2% — 1.5 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 Nelson County in the national ranking. They can be in different states and are not necessarily geographic neighbors.

Land rankCounty equivalentLand mi²Comparison
#702Renville County, Minnesota982.9Compare
#703Nelson County, North Dakota981.8This county
#704Faulk County, South Dakota981.7Compare

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 47.918667, -98.204428. 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: 2,542,889,236 m²; AWATER: 70,073,746 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 big is Nelson County?

Nelson County, North Dakota has 981.8 square miles (2,542.9 km²) of land and 27.1 square miles of water, for a total area of 1,008.9 square miles. It ranks #703 of 3,222 U.S. county equivalents by land area.

Is Nelson County the largest county in North Dakota?

No. Nelson County ranks #41 of 53 in North Dakota by land area. The largest is McKenzie County, with 2,760.1 square miles of land.

What counties border Nelson County?

Nelson County shares a land border with Grand Forks County, Ramsey County, Griggs County, Walsh County, Eddy County, Steele County, and Benson County.

What is the population of Nelson County?

The Census Bureau estimates Nelson County had 2,963 residents on July 1, 2025, ranking #3,035 of 3,222 county equivalents. That is 3 people per square mile of land.

What is the county seat of Nelson County?

The county seat of Nelson County is Lakota.

What cities and towns are in Nelson County?

Nelson County has 7 incorporated places. The most populous five are Lakota city, McVille city, Michigan City city, Aneta city, and Petersburg city; 1,040 residents live outside any incorporated place.

Is Nelson County part of a metropolitan area?

No. Nelson County is outside every metropolitan and micropolitan statistical area in the July 2023 OMB delineation.

How many ZIP codes are in Nelson County?

10 ZIP Code Tabulation Areas have land in Nelson County, and 6 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.

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

It has less land than every state. Rhode Island, the smallest, has 1.1 times as much land.

How many acres of land are in Nelson County?

The land measurement converts to approximately 628,362 acres. Including water, total area is approximately 645,677 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

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