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1900s (20th Century) Maps of Placer County, California

Explore 127 historic maps of Placer County from the 1900s (20th Century). These maps offer a rare glimpse into what life looked like during the 1900s — showing old roads, neighborhoods, homes, and landmarks that have changed or disappeared over time.

Whether you're researching your family's past, planning a metal detecting trip, or studying how Placer County's landscape evolved across the 1900s, these high-resolution maps are a powerful tool for exploring the history of this region.

  • Focus on a specific era: All maps on this page are from the 1900s, giving you a focused view of this time period.
  • See what’s changed: Compare century-old streets, trails, and buildings to today's modern landscape using overlays and satellite layers.
  • Research with precision: Use these maps for genealogy, historical research, land use analysis, or educational projects.
  • View, download, or print: Maps are fully viewable online in high resolution, and can be downloaded or printed for your own records.

Start exploring Placer County's history through authentic maps from the 1900s. This is your window into the past.

Placer County, CA maps

(127)
  1. 1900 Map of Colfax
    1900 Map of Colfax
    1900 Colfax
    1900 Print · USGS
    The Sierra Nevada foothills and high peaks are shown at the turn of the century as the mining economy and transcontinental rail travel reached their maturity. Researchers can trace historic industrial sites like the Alaska Mine, remote camps such as Moores Flat, and the path of the Southern Pacific RR.
  4. 1902 Map of Colfax
    1902 Map of Colfax
    1902 Colfax
    1902 Print · USGS
    Gold-rush towns and hydraulic mining sites define this portion of the Sierra Nevada at the turn of the century. Genealogists and historians can trace the foundations of North Bloomfield, locate the remote Alaska Mine, or follow the Southern Pacific through Emigrant Gap.
    7 unique versions available
  7. 1902 Map of Fairoaks
    1902 Map of Fairoaks
    1902 Fairoaks
    1902 Print · USGS
    Sacramento and its surrounding ranchlands were undergoing a rapid rail-driven transformation at the start of the century. You can trace the early street grids of Oak Park and Highland Park or locate vanished stops like Twelvemile House and Walsh Station.
    2 unique versions available
  10. 1910 Map of Sheridan
    1910 Map of Sheridan
    1910 Sheridan
    1910 Print · USGS
    Near the Placer and Sutter county line in the early 1900s, this area was a landscape of historic land grants and vital rail links. Genealogists and historians can trace the tracks of the S. P. R. R. (Marysville Line) past Sheridan and locate the rural Fairview School.
    2 unique versions available
  13. 1910 Map of Lincoln
    1910 Map of Lincoln
    1910 Lincoln
    1910 Print · USGS
    Placer County's lower foothills and agricultural plains are captured here just after the turn of the century. You can trace the path of the Southern Pacific (Marysville Line) through early settlements like Sheridan and Lincoln, and locate the old Fairoaks School.
    2 unique versions available
  16. 1910 Map of Wheatland
    1910 Map of Wheatland
    1910 Wheatland
    1910 Print · USGS
    The Wheatland area at the dawn of the twentieth century was a landscape of expansive ranching lands and developing rail corridors. Researchers can trace the massive Johnson Rancho boundary, locate the Eagle School, and find the early settlement of Horstville.
    2 unique versions available
  19. 1910 Map of Roseville
    1910 Map of Roseville
    1910 Roseville
    1910 Print · USGS
    Roseville was a burgeoning railroad town when this 1908 survey recorded its early street grid and rail junctions. Trace the tracks of the Southern Pacific through Whitney or locate rural landmarks like the Pleasant Grove School and Kaseberg farm.
    2 unique versions available
  22. 1910 Map of Pleasant Grove
    1910 Map of Pleasant Grove
    1910 Pleasant Grove
    1910 Print · USGS
    The Sacramento Valley landscape near the Sutter and Placer county line appears here in the early twentieth century, dominated by agricultural plains and interurban rail. Researchers can trace the early path of the Northern Electric RR and find rural landmarks like Eagle School and Alpha School.
    2 unique versions available
  25. 1911 Map of Arcade
    1911 Map of Arcade
    1911 Arcade
    1911 Print · USGS
    North of Sacramento in the early 1900s, the landscape was being reshaped by a dense network of competing railroads and emerging rural communities. Local historians can trace the early footprints of Elverta and Robla alongside landmarks like the Oak Grove School and the Northern Electric line.
    2 unique versions available
  28. 1911 Map of Antelope
    1911 Map of Antelope
    1911 Antelope
    1911 Print · USGS
    The Placer and Sacramento county borderlands are captured here just after the turn of the century, centered on the growing rail hub at Roseville. Genealogists and local historians can trace early school districts at Sylvan and San Juan, and locate the historic Twelvemile House along the Auburn Road.
  31. 1914 Map of Folsom
    1914 Map of Folsom
    1914 Folsom
    1914 Print · USGS
    The American River gold country comes alive in this early century survey of the region surrounding Folsom. Researchers can trace the path of the Placerville Branch railroad or locate early industrial sites like the Power House and a large river Dredge.
    2 unique versions available
  34. 1915 Map of Spenceville
    1915 Map of Spenceville
    1915 Spenceville
    1915 Print · USGS
    In the California foothills before the era of major dams, the Bear River and Johnson Rancho defined the local landscape. Genealogists and historians can trace old property lines and river landmarks like McCourtney Crossing and Fenton Ravine.
    2 unique versions available
  37. 1932 Map of Truckee
    1932 Map of Truckee
    1932 Truckee
    1932 Print · USGS
    The high Sierra and Lake Tahoe's western shore are captured here in the early thirties as the region balanced industrial mining and timber with a growing seasonal economy. Trace early lakeside developments from Tahoe Tavern to Meeks Bay PO, or locate historical sites like the Walker Mine and Donner Monument.
  40. 1938 Map of Colfax
    1938 Map of Colfax
    1938 Colfax
    1938 Print · USGS
    The Sierra Nevada's gold and timber country comes into focus in the late 1930s, showing a landscape defined by deep river canyons and industrial high-country camps. Researchers can locate remote sites like the Sixteen to One Mine, the North Bloomfield Ranger Station, and vanished settlements like Lake City.
    3 unique versions available
  43. 1940 Map of Truckee
    1940 Map of Truckee
    1940 Truckee
    1940 Print · USGS
    The High Sierra and Lake Tahoe shoreline appear here in the pre-war era, showing a landscape defined by timber, tourism, and transit. Genealogists and historians can trace the early resort development at Tahoe Vista, the lumber works at Hobart Mills, and the vital Southern Pacific rail line.
    4 unique versions available
  46. 1941 Map of Folsom, 1957 Print
    1941 Map of Folsom, 1957 Print
    1941 Folsom
    1957 Print · USGS
    The foothills of the Sierra Nevada meet the Central Valley in the early 1940s, showing the river and rail corridors before major reservoirs were built. Researchers can trace the original tracks of the Southern Pacific and locate historic rural hubs like Natoma, Clarksville, and Mormon Island Sch.
    2 unique versions available
  49. 1942 Map of Markham Ravine
    1942 Map of Markham Ravine
    1942 Markham Ravine
    1942 Print · USGS
    Western Placer County was a landscape of busy rail lines and rural schoolhouses in the early 1940s. Genealogists and historians can trace old homesteads near Sheridan, locate the Clay Quarry at Lincoln, or find former community centers like Central Sch.
  52. 1944 Map of Auburn
    1944 Map of Auburn
    1944 Auburn
    1944 Print · USGS
    The Placer County foothills in the early 1940s show a landscape of deep river canyons and growing rail towns. Researchers can trace rural school districts like Japanese Sch and old river crossings at Rattlesnake Bridge and Salmon Falls.
    3 unique versions available
  55. 1944 Map of Folsom
    1944 Map of Folsom
    1944 Folsom
    1944 Print · USGS
    The American River region around Folsom thrives in the early 1940s, marked by dredging bars and early rail transport before major reservoirs transformed the valley. Researchers can find many schoolhouses like Mormon Island Sch and landmarks such as the State Prison Represa.
    2 unique versions available
  58. 1947 Map of Sacramento, 1948 Print
    1947 Map of Sacramento, 1948 Print
    1947 Sacramento
    1948 Print · USGS
    The Sacramento Valley meets the high Sierra during a period of post-war expansion. Trace the historic river delta islands like Grand Island or locate early airfield footprints at McClellan Air Force Base and Mather Air Force Base.
    2 unique versions available
  61. 1947 Map of Wheatland, 1958 Print
    1947 Map of Wheatland, 1958 Print
    1947 Wheatland
    1958 Print · USGS
    Wheatland and the surrounding ranchlands are shown shortly after the war, when the railroad and river systems dictated local commerce. Researchers can trace family-named sites like Johnson Ranch and Horstville or the early boundaries of the Camp Beale Military Reservation.
    4 unique versions available
  64. 1948 Map of Sacramento, 1951 Print
    1948 Map of Sacramento, 1951 Print
    1948 Sacramento
    1951 Print · USGS
    Post-war Northern California comes alive in this regional survey, capturing the era of expansion between the Central Valley and the High Sierra. Researchers can trace the rail networks of the Central California Traction and Sacramento Northern RR or locate landmarks like the State Capitol and University of California Davis.
  67. 1948 Map of Foresthill, 1975 Print
    1948 Map of Foresthill, 1975 Print
    1948 Foresthill
    1975 Print · USGS
    The gold-bearing ridges of the Sierra Nevada foothills come alive in this mid-century survey of the Placer County mining country. Genealogists and historians can locate family claims and old outposts like Yankee Jims, the Mayflower Mine, and Ebberts Ranch.
  70. 1949 Map of Wheatland
    1949 Map of Wheatland
    1949 Wheatland
    1949 Print · USGS
    Wheatland and the surrounding agricultural landscape are shown here in the late 1940s as the regional economy balanced ranching with military development. Researchers can trace family-named lands like Boardman Ranch and Durst Ranch, or explore the wartime footprint of the Camp Beale Military Reservation.
  73. 1949 Map of Georgetown
    1949 Map of Georgetown
    1949 Georgetown
    1949 Print · USGS
    El Dorado County’s gold country is captured here during the late 1940s, showcasing a landscape shaped by a century of mining. Researchers can trace historic sites like the Sutters Mill Site, Spanish Dry Diggings, and the Uniontown Cem.
    5 unique versions available
Showing maps 1-25 of 127

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