Join Free

1940s Maps of Lake County, California

Explore 18 historic maps of Lake County from the 1940s. These maps offer a rare glimpse into what life looked like during the 1940s — 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 Lake County's landscape evolved across the 1940s, 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 1940s, 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 Lake County's history through authentic maps from the 1940s. This is your window into the past.

Lake County, CA maps

(18)
  1. 1942 Map of Bartlett Springs
    1942 Map of Bartlett Springs
    1942 Bartlett Springs
    1942 Print · USGS
    Covers Lake County, including Clearlake Oaks, Spring Valley, and other nearby areas
  4. 1942 Map of St. Helena, 1966 Print
    1942 Map of St. Helena, 1966 Print
    1942 St. Helena
    1966 Print · USGS
    Covers Lake County, including Howell Mountain, Pope Valley, and other nearby areas
  7. 1943 Map of Morgan Valley
    1943 Map of Morgan Valley
    1943 Morgan Valley
    1943 Print · USGS
    Covers Lake County, including Knoxville, Yolo County, and other nearby areas
  10. 1943 Map of Pomo, 1954 Print
    1943 Map of Pomo, 1954 Print
    1943 Pomo
    1954 Print · USGS
    Covers Lake County, including Redwood Valley, Hearst, and other nearby areas
  13. 1943 Map of Calistoga, 1955 Print
    1943 Map of Calistoga, 1955 Print
    1943 Calistoga
    1955 Print · USGS
    Covers Lake County, including Santa Rosa, Calistoga, and other nearby areas
  16. 1943 Map of Kelseyville, 1959 Print
    1943 Map of Kelseyville, 1959 Print
    1943 Kelseyville
    1959 Print · USGS
    Covers Lake County, including Cloverdale, Kelseyville, and other nearby areas
  19. 1943 Map of Hopland, 1960 Print
    1943 Map of Hopland, 1960 Print
    1943 Hopland
    1960 Print · USGS
    Covers Lake County, including Cloverdale, Yorkville, and other nearby areas
  22. 1944 Map of Bartlett Springs
    1944 Map of Bartlett Springs
    1944 Bartlett Springs
    1944 Print · USGS
    Covers Lake County, including Clearlake Oaks, Spring Valley, and other nearby areas
    2 unique versions available
  25. 1944 Map of Ukiah
    1944 Map of Ukiah
    1944 Ukiah
    1944 Print · USGS
    Covers Lake County, including Ukiah, Redwood Valley, and other nearby areas
  28. 1944 Map of Wilbur Springs
    1944 Map of Wilbur Springs
    1944 Wilbur Springs
    1944 Print · USGS
    Covers Lake County, including Leesville, Colusa County, and other nearby areas
    3 unique versions available
  31. 1944 Map of Morgan Valley
    1944 Map of Morgan Valley
    1944 Morgan Valley
    1944 Print · USGS
    Covers Lake County, including Knoxville, Yolo County, and other nearby areas
    2 unique versions available
  34. 1944 Map of Hopland
    1944 Map of Hopland
    1944 Hopland
    1944 Print · USGS
    Covers Lake County, including Cloverdale, Yorkville, and other nearby areas
  37. 1945 Map of Calistoga
    1945 Map of Calistoga
    1945 Calistoga
    1945 Print · USGS
    Covers Lake County, including Santa Rosa, Calistoga, and other nearby areas
    2 unique versions available
  40. 1945 Map of St. Helena
    1945 Map of St. Helena
    1945 St. Helena
    1945 Print · USGS
    Covers Lake County, including Howell Mountain, Pope Valley, and other nearby areas
    2 unique versions available
  43. 1945 Map of Lower Lake
    1945 Map of Lower Lake
    1945 Lower Lake
    1945 Print · USGS
    Covers Lake County, including Clearlake, Clearlake Riviera, and other nearby areas
    2 unique versions available
  46. 1947 Map of Santa Rosa
    1947 Map of Santa Rosa
    1947 Santa Rosa
    1947 Print · USGS
    Covers Lake County, including Santa Rosa, Concord, and other nearby areas
  49. 1948 Map of Elk Creek
    1948 Map of Elk Creek
    1948 Elk Creek
    1948 Print · USGS
    Covers Lake County, including Elk Creek, Chrome, and other nearby areas
    2 unique versions available
  52. 1949 Map of Santa Rosa
    1949 Map of Santa Rosa
    1949 Santa Rosa
    1949 Print · USGS
    Covers Lake County, including Santa Rosa, Concord, and other nearby areas
    2 unique versions available
End of results
Showing maps 1-18 of 18

Top cities of Lake County

See more

Frequently asked questions

  • What are the different types of historical maps available for Lake County?
  • What is the oldest map of Lake County?
  • Where can I purchase historical maps of Lake County for my home or office?
  • Where can I download high-res historical maps of Lake County?
  • Are there historical topographic maps available for Lake County?
  • Is there historical aerial imagery available for Lake County?
  • Where are historical maps of Lake County sourced from?