County Maps US

Yuba County, California

A county in California, ranked 38 of 58 by population.

CountyFIPS 06115

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

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Population
88,691
+6,695 (+8.2%) since 2020
Land area
632
square miles. A further 1.9% of the total area is water
Population density
140
people per square mile, computed rather than published
County seat
Marysville
Seat of county government.
Established
1850
175 years ago
Largest city
Marysville city
Population 12,738.

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 Yuba 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 Yuba County, California 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 566 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 Yuba County ranks

Position among the 58 counties of California, and among all 3,144 US counties and county-equivalents. Computed from the figures on this page.

MeasureValueIn CaliforniaNationally
Population88,69138th of 58675th of 3,144
Land area632 sq mi52nd of 581,515th of 3,144
Population density140 per sq mi25th of 58731st of 3,144
Median household income$76,37335th of 58756th of 3,143

Full data for Yuba County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population88,691Vintage 2025 Population Estimates
Population in 202081,996Vintage 2025 Population Estimates
2020 estimates base?81,573Vintage 2025 Population Estimates
Land area632 sq mi2025 Gazetteer Files
Water area12.0 sq mi2025 Gazetteer Files
Total area644 sq mi2025 Gazetteer Files
Population density?140 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$76,373American Community Survey 2020-2024 5-Year Estimates
Median home value$412,300American Community Survey 2020-2024 5-Year Estimates
Median age34.2American Community Survey 2020-2024 5-Year Estimates
Households28,635American Community Survey 2020-2024 5-Year Estimates
Housing units30,661American 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
+355
1,073 births, 718 deaths
Net migration
+900
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 Yuba 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
Butte CountyCalifornia53 mi209,211
Sutter CountyCalifornia47 mi98,787
Nevada CountyCalifornia39 mi101,911
Sierra CountyCalifornia20 mi3,098
Placer CountyCalifornia10 mi442,081
Plumas CountyCalifornia4.6 mi18,583

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

All 58 counties of California

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

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