County Maps US

Seward County, Nebraska

A county in Nebraska, ranked 18 of 93 by population.

CountyFIPS 31159

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

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Population
18,032
+408 (+2.3%) since 2020
Land area
571.4
square miles. A further 0.8% of the total area is water
Population density
31.6
people per square mile, computed rather than published
County seat
Seward
Seat of county government.
Established
1867
158 years ago
Largest city
Seward city
Population 7,892.

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 Seward 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 Seward 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 794 by 800 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 Seward 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
Population18,03218th of 931,936th of 3,144
Land area571.4 sq mi56th of 931,758th of 3,144
Population density31.6 per sq mi15th of 931,878th of 3,144
Median household income$82,4447th of 93494th of 3,143

Full data for Seward County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population18,032Vintage 2025 Population Estimates
Population in 202017,624Vintage 2025 Population Estimates
2020 estimates base?17,612Vintage 2025 Population Estimates
Land area571.4 sq mi2025 Gazetteer Files
Water area4.5 sq mi2025 Gazetteer Files
Total area575.9 sq mi2025 Gazetteer Files
Population density?31.6 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$82,444American Community Survey 2020-2024 5-Year Estimates
Median home value$241,300American Community Survey 2020-2024 5-Year Estimates
Median age38.0American Community Survey 2020-2024 5-Year Estimates
Households6,788American Community Survey 2020-2024 5-Year Estimates
Housing units7,206American 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
+38
200 births, 162 deaths
Net migration
+105
More people moved in than moved out.

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

The 6 areas bordering Seward 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
Lancaster CountyNebraska24 mi334,049
York CountyNebraska24 mi14,564
Saline CountyNebraska24 mi14,996
Butler CountyNebraska24 mi8,507
Fillmore CountyNebraskaa single point5,458
Polk CountyNebraskaa single point5,270

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.