Johnson County, Nebraska

A county in Nebraska, ranked 54 of 93 by population.

CountyFIPS 31097

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

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Population
5,218
-74 (-1.4%) since 2020
Land area
376.1
square miles. A further 0.2% of the total area is water
Population density
13.9
people per square mile, computed rather than published
County seat
Tecumseh
Seat of county government.
Established
1855
170 years ago
Largest city
Tecumseh city
Population 1,695.

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 Johnson 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 Johnson 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 702 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 Johnson 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
Population5,21854th of 932,805th of 3,144
Land area376.1 sq mi90th of 932,617th of 3,144
Population density13.9 per sq mi31st of 932,428th of 3,144
Median household income$57,63286th of 932,293rd of 3,143

Full data for Johnson County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population5,218Vintage 2025 Population Estimates
Population in 20205,292Vintage 2025 Population Estimates
2020 estimates base?5,285Vintage 2025 Population Estimates
Land area376.1 sq mi2025 Gazetteer Files
Water area0.65 sq mi2025 Gazetteer Files
Total area376.7 sq mi2025 Gazetteer Files
Population density?13.9 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$57,632American Community Survey 2020-2024 5-Year Estimates
Median home value$155,500American Community Survey 2020-2024 5-Year Estimates
Median age41.1American Community Survey 2020-2024 5-Year Estimates
Households1,708American Community Survey 2020-2024 5-Year Estimates
Housing units2,098American 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
-26
41 births, 67 deaths
Net migration
+47
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 5 areas bordering Johnson 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
Pawnee CountyNebraska21 mi2,510
Otoe CountyNebraska21 mi16,531
Nemaha CountyNebraska18 mi7,102
Gage CountyNebraska18 mi21,711
Lancaster CountyNebraskaa single point334,049

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.