Sacramento Metro Area Counties

4 counties · 2.5 million people (2025) · 5,094 sq mi

The Sacramento metro area (officially the Sacramento-Roseville-Folsom, CA Metropolitan Statistical Area) has 4 counties in California, with 2,477,274 people in 2025. Sacramento County is the most populous.

Map of the 4 counties of the Sacramento metro area with county names and major cities
The 4 counties of the Sacramento metro area (yellow) with the largest cities. Boundaries: U.S. Census Bureau, 2025. Free to use with attribution (CC BY 4.0).
PDF (Letter) 268 KBPNG (2400 px) 133 KB

The 4 counties of the Sacramento metro area

Sorted by population. 3 are central counties (the urban core); the others are outlying counties tied to it by commuting.

CountyCounty seatPopulation 2025Change since 2020Land area (sq mi)Type
Sacramento CountySacramento1,618,460+2.1%965Central
Placer CountyAuburn442,081+9.2%1,407Central
Yolo CountyWoodland224,410+3%1,013Outlying
El Dorado CountyPlacerville192,323+0.6%1,708Central

The metro area is part of the larger Sacramento-Roseville, CA Combined Statistical Area.

Printable map

The PDF is a vector file for Letter paper; the PNG is 2400 pixels wide. Both are free to use with a credit to WhichCounty.

County maps of California

Other metro areas

All 97 metro area county maps

Sources