County Maps US

Oneida County, Wisconsin

A county in Wisconsin, ranked 39 of 72 by population.

CountyFIPS 55085

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

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Population
38,131
+267 (+0.7%) since 2020
Land area
1,114
square miles. A further 9.9% of the total area is water
Population density
34.2
people per square mile, computed rather than published
County seat
Rhinelander
Seat of county government.
Established
1885
140 years ago
Largest city
Rhinelander city
Population 8,242.

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 Oneida 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 Oneida County, Wisconsin 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 533 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 Oneida County ranks

Position among the 72 counties of Wisconsin, and among all 3,144 US counties and county-equivalents. Computed from the figures on this page.

MeasureValueIn WisconsinNationally
Population38,13139th of 721,234th of 3,144
Land area1,114 sq mi10th of 72566th of 3,144
Population density34.2 per sq mi46th of 721,813th of 3,144
Median household income$69,37142nd of 721,247th of 3,143

Full data for Oneida County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population38,131Vintage 2025 Population Estimates
Population in 202037,864Vintage 2025 Population Estimates
2020 estimates base?37,840Vintage 2025 Population Estimates
Land area1,114 sq mi2025 Gazetteer Files
Water area122.6 sq mi2025 Gazetteer Files
Total area1,237 sq mi2025 Gazetteer Files
Population density?34.2 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$69,371American Community Survey 2020-2024 5-Year Estimates
Median home value$238,400American Community Survey 2020-2024 5-Year Estimates
Median age52.7American Community Survey 2020-2024 5-Year Estimates
Households17,493American Community Survey 2020-2024 5-Year Estimates
Housing units30,814American 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
-252
265 births, 517 deaths
Net migration
+211
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 Oneida 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
Vilas CountyWisconsin54 mi23,761
Lincoln CountyWisconsin36 mi28,403
Forest CountyWisconsin30 mi9,574
Price CountyWisconsin24 mi13,988
Langlade CountyWisconsin18 mi19,534

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

All 72 counties of Wisconsin

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

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