Placer County, California

Placer County stretches from the Sacramento suburbs into the Sierra Nevada and all the way to Lake Tahoe. Auburn serves as the county seat and is known for its charming Gold Rush-era character.

With a population of more than 400,000 people, Placer County has experienced significant growth, particularly in communities such as Roseville and Rocklin. Roseville is also a major shopping destination, with a large regional mall attracting visitors from across the area.

The Sierra Nevada portion of the county offers excellent opportunities for hiking, skiing, and other outdoor activities. Palisades Tahoe, formerly known as Squaw Valley, hosted the 1960 Winter Olympics and remains one of the region’s best-known mountain resorts.

CategoryDetails
County NamePlacer County
County SeatAuburn
PopulationApproximately 400,000
Cities, Towns, and CommunitiesAuburn, Roseville, Lincoln, Rocklin, Granite Bay, Colfax, Loomis
Interstates and HighwaysInterstate 80, State Route 65, State Route 49
FIPS Code06-061
Total Area (Land and Water)1,502 square miles (Land: 1,409 sq mi, Water: 93 sq mi)
Adjacent Counties (and Direction)Nevada County (North), Washoe County, Nevada (Northeast), Carson City, Nevada (East), Douglas County, Nevada (Southeast), El Dorado County (South), Sacramento County (Southwest), Sutter County (West), Yuba County (Northwest)
Time ZonePacific Standard Time (PST)
StateCalifornia
Coordinates38.8462° N, 121.2867° W
EtymologyNamed after the placer deposits of gold discovered during the California Gold Rush
Major LandmarksLake Tahoe (part), Sierra Nevada mountains, Auburn State Recreation Area, Roseville Galleria

PHYSICAL MAP

Placer County Topographic Map

This topographic map highlights Placer County’s dramatic elevation changes, with the terrain rising from the Sacramento Valley floor toward the Sierra Nevada crest. The detailed contours reveal the county’s transition from lowland plains to rugged mountain terrain.

SATELLITE IMAGERY

Placer County Satellite Map

This satellite map shows the remarkable diversity of Placer County’s landscape, from the Sacramento Valley to the high Sierra. A portion of Lake Tahoe’s shoreline appears as a striking blue crescent in the eastern corner.

OUTLINE MAP

Placer County Blank Map

This blank map outlines Placer County’s long, narrow shape extending from the Sacramento Valley to Lake Tahoe. The simple design emphasizes the county’s unique position across California’s varied geographic regions.

California County Map

Printable California county map showing county boundaries and locations

Ever wonder how California’s 58 counties are organized? Our California county map lays them all out, from the Pacific Coast to the vast desert regions. Explore the map to find the counties you know—and perhaps discover a few you don’t.

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