County Maps US

Platte County, Nebraska

A county in Nebraska, ranked 8 of 93 by population.

CountyFIPS 31141

Within Nebraska
Platte County, highlighted, with the areas around it. Boundaries generalised from the 2025 Census cartographic boundary file; neighbour fills carry no data. The dot marks Columbus, the county seat, located via the 2025 Census Gazetteer.

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Population
35,649
+1,347 (+3.9%) since 2020
Land area
675.1
square miles. A further 1.4% of the total area is water
Population density
52.8
people per square mile, computed rather than published
County seat
Columbus
Seat of county government.
Established
1855
170 years ago
Largest city
Columbus city
Population 25,248.

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; Wikidata (CC0), Wikidata. Retrieved 30 August 2026.

Satellite view

Aerial imagery of Platte County with its boundary drawn on top. A map shows you the shape; this shows you what is inside it, and which side of the line a place falls on.

Aerial view of Platte County, Nebraska from the USGS National Map, with its boundary outlined
Imagery: USGS National Map, USGS Imagery Only, public domain, requested from USGS by your browser when you reach this point on the page, at 800 by 762 pixels. The boundary is the 2025 Census cartographic boundary file, reprojected to Web Mercator to match the imagery. You can also open the USGS National Map viewer.

Where Platte County ranks

Position among the 93 counties of Nebraska, and among all 3,144 US counties and county-equivalents. Computed from the figures on this page.

MeasureValueIn NebraskaNationally
Population35,6498th of 931,302nd of 3,144
Land area675.1 sq mi42nd of 931,394th of 3,144
Population density52.8 per sq mi11th of 931,420th of 3,144
Median household income$71,55232nd of 931,079th of 3,143

Full data for Platte County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population35,649Vintage 2025 Population Estimates
Population in 202034,302Vintage 2025 Population Estimates
2020 estimates base?34,311Vintage 2025 Population Estimates
Land area675.1 sq mi2025 Gazetteer Files
Water area9.5 sq mi2025 Gazetteer Files
Total area684.6 sq mi2025 Gazetteer Files
Population density?52.8 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$71,552American Community Survey 2020-2024 5-Year Estimates
Median home value$223,900American Community Survey 2020-2024 5-Year Estimates
Median age37.7American Community Survey 2020-2024 5-Year Estimates
Households13,658American Community Survey 2020-2024 5-Year Estimates
Housing units14,325American Community Survey 2020-2024 5-Year Estimates

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; US Census Bureau, American Community Survey, American Community Survey 2020-2024 5-Year Estimates, released 29 January 2026. Population density is computed here, not published: it divides the Vintage 2025 population estimate by the 2025 Gazetteer land area, which are two different Census products. Retrieved 30 August 2026.

How the population changed

The Census Bureau publishes the components behind an estimate, not just the total. For the year to July 2025:

Births minus deaths
+111
428 births, 317 deaths
Net migration
-116
More people moved out than moved in.

Source: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026. Retrieved 30 August 2026.

The 8 areas bordering Platte County

Ordered by the length of the border actually shared, which the Census Bureau publishes in its county adjacency file and which no other county reference presents.

Bordering areaStateShared borderPopulation
Colfax CountyNebraska25 mi10,934
Madison CountyNebraska24 mi36,106
Nance CountyNebraska16 mi3,290
Boone CountyNebraska15 mi5,355
Polk CountyNebraska13 mi5,270
Merrick CountyNebraska9.8 mi7,905
Butler CountyNebraska6.6 mi8,507
Stanton CountyNebraska6.0 mi5,744

Source: US Census Bureau, County Adjacency File, 2025 County Adjacency File, released 15 September 2025. Retrieved 30 August 2026.

All 93 counties of Nebraska

Open the interactive Nebraska county map, or jump straight to any of them.

Data on this page last rebuilt 30 August 2026. How these figures are produced.