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1940s Maps of Sonoma County, California

Explore 39 historic maps of Sonoma 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 Sonoma 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 Sonoma County's history through authentic maps from the 1940s. This is your window into the past.

Sonoma County, CA maps

(39)
  1. 1940 Map of Healdsburg
    1940 Map of Healdsburg
    1940 Healdsburg
    1940 Print · USGS
    Covers Sonoma County, including Windsor, Healdsburg, and other nearby areas
    3 unique versions available
  4. 1942 Map of Mare Island
    1942 Map of Mare Island
    1942 Mare Island
    1942 Print · USGS
    Covers Sonoma County, including Vallejo, Richmond, and other nearby areas
  7. 1942 Map of Sebastopol
    1942 Map of Sebastopol
    1942 Sebastopol
    1942 Print · USGS
    Covers Sonoma County, including Santa Rosa, Windsor, and other nearby areas
    3 unique versions available
  10. 1942 Map of Sonoma
    1942 Map of Sonoma
    1942 Sonoma
    1942 Print · USGS
    Covers Sonoma County, including Napa, Sonoma, and other nearby areas
  13. 1942 Map of Petaluma
    1942 Map of Petaluma
    1942 Petaluma
    1942 Print · USGS
    Covers Sonoma County, including Petaluma, San Rafael, and other nearby areas
  16. 1942 Map of Bodega Head, 1956 Print
    1942 Map of Bodega Head, 1956 Print
    1942 Bodega Head
    1956 Print · USGS
    Covers Sonoma County, including Carmet, Bodega Bay, and other nearby areas
    3 unique versions available
  19. 1942 Map of Arched Rock, 1956 Print
    1942 Map of Arched Rock, 1956 Print
    1942 Arched Rock
    1956 Print · USGS
    Covers Sonoma County, including United States, California, and other nearby areas
    3 unique versions available
  22. 1943 Map of Point Arena
    1943 Map of Point Arena
    1943 Point Arena
    1943 Print · USGS
    Covers Sonoma County, including Point Arena, Gallaway, and other nearby areas
    2 unique versions available
  25. 1943 Map of Tombs Creek
    1943 Map of Tombs Creek
    1943 Tombs Creek
    1943 Print · USGS
    Covers Sonoma County, including Las Lomas, United States, and other nearby areas
  28. 1943 Map of Calistoga, 1955 Print
    1943 Map of Calistoga, 1955 Print
    1943 Calistoga
    1955 Print · USGS
    Covers Sonoma County, including Santa Rosa, Calistoga, and other nearby areas
  31. 1943 Map of Stewarts Point, 1956 Print
    1943 Map of Stewarts Point, 1956 Print
    1943 Stewarts Point
    1956 Print · USGS
    Covers Sonoma County, including Sea Ranch, Valley Crossing, and other nearby areas
    3 unique versions available
  34. 1943 Map of Plantation, 1956 Print
    1943 Map of Plantation, 1956 Print
    1943 Plantation
    1956 Print · USGS
    Covers Sonoma County, including Walsh Landing, United States, and other nearby areas
    3 unique versions available
  37. 1943 Map of Cazadero, 1956 Print
    1943 Map of Cazadero, 1956 Print
    1943 Cazadero
    1956 Print · USGS
    Covers Sonoma County, including Goat Rock, Cazadero, and other nearby areas
    3 unique versions available
  40. 1943 Map of Annapolis, 1956 Print
    1943 Map of Annapolis, 1956 Print
    1943 Annapolis
    1956 Print · USGS
    Covers Sonoma County, including Annapolis, United States, and other nearby areas
    2 unique versions available
  43. 1943 Map of Duncans Mills, 1956 Print
    1943 Map of Duncans Mills, 1956 Print
    1943 Duncans Mills
    1956 Print · USGS
    Covers Sonoma County, including Villa Grande, Duncans Mills, and other nearby areas
    2 unique versions available
  46. 1943 Map of Skaggs Springs, 1956 Print
    1943 Map of Skaggs Springs, 1956 Print
    1943 Skaggs Springs
    1956 Print · USGS
    Covers Sonoma County, including United States, California, and other nearby areas
  49. 1943 Map of Fort Ross, 1958 Print
    1943 Map of Fort Ross, 1958 Print
    1943 Fort Ross
    1958 Print · USGS
    Covers Sonoma County, including Truth Home, Fort Ross, and other nearby areas
    2 unique versions available
  52. 1943 Map of Kelseyville, 1959 Print
    1943 Map of Kelseyville, 1959 Print
    1943 Kelseyville
    1959 Print · USGS
    Covers Sonoma County, including Cloverdale, Kelseyville, and other nearby areas
  55. 1943 Map of Hopland, 1960 Print
    1943 Map of Hopland, 1960 Print
    1943 Hopland
    1960 Print · USGS
    Covers Sonoma County, including Cloverdale, Yorkville, and other nearby areas
  58. 1943 Map of Ornbaun, 1961 Print
    1943 Map of Ornbaun, 1961 Print
    1943 Ornbaun
    1961 Print · USGS
    Covers Sonoma County, including Boonville, Little Penny, and other nearby areas
  61. 1944 Map of Santa Rosa
    1944 Map of Santa Rosa
    1944 Santa Rosa
    1944 Print · USGS
    Covers Sonoma County, including Santa Rosa, Petaluma, and other nearby areas
    2 unique versions available
  64. 1944 Map of Fort Ross
    1944 Map of Fort Ross
    1944 Fort Ross
    1944 Print · USGS
    Covers Sonoma County, including Truth Home, Fort Ross, and other nearby areas
    2 unique versions available
  67. 1944 Map of Annapolis
    1944 Map of Annapolis
    1944 Annapolis
    1944 Print · USGS
    Covers Sonoma County, including Annapolis, United States, and other nearby areas
    2 unique versions available
  70. 1944 Map of Plantation
    1944 Map of Plantation
    1944 Plantation
    1944 Print · USGS
    Covers Sonoma County, including Walsh Landing, United States, and other nearby areas
    2 unique versions available
  73. 1944 Map of Bodega Head
    1944 Map of Bodega Head
    1944 Bodega Head
    1944 Print · USGS
    Covers Sonoma County, including Carmet, Bodega Bay, and other nearby areas
    4 unique versions available
Showing maps 1-25 of 39

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Frequently asked questions

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