County Maps US

Otoe County, Nebraska

A county in Nebraska, ranked 19 of 93 by population.

CountyFIPS 31131

Within Nebraska
Otoe County, highlighted, with the areas around it. Boundaries generalised from the 2025 Census cartographic boundary file; neighbour fills carry no data.

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Population
16,531
+627 (+3.9%) since 2020
Land area
615.6
square miles. A further 0.5% of the total area is water
Population density
26.9
people per square mile, computed rather than published
County seat
Nebraska City
Seat of county government.
Established
1854
171 years ago
Largest city
Nebraska City city
Population 7,512.

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 Otoe 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 Otoe 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 412 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 Otoe 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
Population16,53119th of 932,003rd of 3,144
Land area615.6 sq mi43rd of 931,572nd of 3,144
Population density26.9 per sq mi16th of 932,015th of 3,144
Median household income$82,1888th of 93501st of 3,143

Full data for Otoe County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population16,531Vintage 2025 Population Estimates
Population in 202015,904Vintage 2025 Population Estimates
2020 estimates base?15,912Vintage 2025 Population Estimates
Land area615.6 sq mi2025 Gazetteer Files
Water area3.4 sq mi2025 Gazetteer Files
Total area619 sq mi2025 Gazetteer Files
Population density?26.9 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$82,188American Community Survey 2020-2024 5-Year Estimates
Median home value$201,600American Community Survey 2020-2024 5-Year Estimates
Median age41.7American Community Survey 2020-2024 5-Year Estimates
Households6,383American Community Survey 2020-2024 5-Year Estimates
Housing units6,999American 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
+3
180 births, 177 deaths
Net migration
+58
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 7 areas bordering Otoe 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
Cass CountyNebraska33 mi27,657
Johnson CountyNebraska21 mi5,218
Fremont CountyIowa19 mi6,522
Nemaha CountyNebraska19 mi7,102
Lancaster CountyNebraska18 mi334,049
Atchison CountyMissouri7.4 mi5,175
Gage CountyNebraskaa single point21,711

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.