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1940s Maps of San Luis Obispo County, California

Explore 78 historic maps of San Luis Obispo 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 San Luis Obispo 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 San Luis Obispo County's history through authentic maps from the 1940s. This is your window into the past.

San Luis Obispo County, CA maps

(78)
  1. 1941 Map of Bradley
    1941 Map of Bradley
    1941 Bradley
    1941 Print · USGS
    Covers San Luis Obispo County, including Bee Rock, Wunpost, and other nearby areas
  4. 1941 Map of Cape San Martin
    1941 Map of Cape San Martin
    1941 Cape San Martin
    1941 Print · USGS
    Covers San Luis Obispo County, including Gorda, Plaskett, and other nearby areas
  7. 1941 Map of Bryson
    1941 Map of Bryson
    1941 Bryson
    1941 Print · USGS
    Covers San Luis Obispo County, including Christmas Cove, South Shore Village, and other nearby areas
  10. 1941 Map of Port San Luis
    1941 Map of Port San Luis
    1941 Port San Luis
    1941 Print · USGS
    Covers San Luis Obispo County, including Port San Luis, United States, and other nearby areas
  13. 1941 Map of Caliente Mountain, 1956 Print
    1941 Map of Caliente Mountain, 1956 Print
    1941 Caliente Mountain
    1956 Print · USGS
    Covers San Luis Obispo County, including Santa Barbara County, United States, and other nearby areas
  16. 1941 Map of McPherson Peak, 1956 Print
    1941 Map of McPherson Peak, 1956 Print
    1941 McPherson Peak
    1956 Print · USGS
    Covers San Luis Obispo County, including Santa Barbara County, United States, and other nearby areas
    3 unique versions available
  19. 1942 Map of Guadalupe
    1942 Map of Guadalupe
    1942 Guadalupe
    1942 Print · USGS
    Covers San Luis Obispo County, including Santa Maria, Lompoc, and other nearby areas
  22. 1942 Map of Adelaida
    1942 Map of Adelaida
    1942 Adelaida
    1942 Print · USGS
    Covers San Luis Obispo County, including Running Deer Ranch, Tri Counties, and other nearby areas
  25. 1942 Map of San Luis Obispo
    1942 Map of San Luis Obispo
    1942 San Luis Obispo
    1942 Print · USGS
    Covers San Luis Obispo County, including San Luis Obispo, Atascadero, and other nearby areas
    2 unique versions available
  28. 1942 Map of Lompoc
    1942 Map of Lompoc
    1942 Lompoc
    1942 Print · USGS
    Covers San Luis Obispo County, including Santa Maria, Lompoc, and other nearby areas
  31. 1942 Map of Bryson
    1942 Map of Bryson
    1942 Bryson
    1942 Print · USGS
    Covers San Luis Obispo County, including Christmas Cove, South Shore Village, and other nearby areas
  34. 1942 Map of Arroyo Grande
    1942 Map of Arroyo Grande
    1942 Arroyo Grande
    1942 Print · USGS
    Covers San Luis Obispo County, including San Luis Obispo, Arroyo Grande, and other nearby areas
    3 unique versions available
  37. 1942 Map of Cape San Martin
    1942 Map of Cape San Martin
    1942 Cape San Martin
    1942 Print · USGS
    Covers San Luis Obispo County, including Gorda, Plaskett, and other nearby areas
  40. 1942 Map of Santa Maria
    1942 Map of Santa Maria
    1942 Santa Maria
    1942 Print · USGS
    Covers San Luis Obispo County, including Santa Maria, Orcutt, and other nearby areas
  43. 1942 Map of Branch Mountain
    1942 Map of Branch Mountain
    1942 Branch Mountain
    1942 Print · USGS
    Covers San Luis Obispo County, including Santa Barbara County, United States, and other nearby areas
    3 unique versions available
  46. 1942 Map of Point Sal
    1942 Map of Point Sal
    1942 Point Sal
    1942 Print · USGS
    Covers San Luis Obispo County, including Santa Maria, Guadalupe, and other nearby areas
  49. 1942 Map of Caliente Mtn, 1952 Print
    1942 Map of Caliente Mtn, 1952 Print
    1942 Caliente Mtn
    1952 Print · USGS
    Covers San Luis Obispo County, including Santa Barbara County, United States, and other nearby areas
    2 unique versions available
  52. 1942 Map of Ballinger Canyon, 1958 Print
    1942 Map of Ballinger Canyon, 1958 Print
    1942 Ballinger Canyon
    1958 Print · USGS
    Covers San Luis Obispo County, including Kern County, Ventura County, and other nearby areas
  55. 1942 Map of East of Cuyama Ranch, 1959 Print
    1942 Map of East of Cuyama Ranch, 1959 Print
    1942 East of Cuyama Ranch
    1959 Print · USGS
    Covers San Luis Obispo County, including Cuyama, Santa Barbara County, and other nearby areas
  58. 1942 Map of Tent Hills, 1960 Print
    1942 Map of Tent Hills, 1960 Print
    1942 Tent Hills
    1960 Print · USGS
    Covers San Luis Obispo County, including Acebedo, Kern County, and other nearby areas
    2 unique versions available
  61. 1943 Map of Packwood
    1943 Map of Packwood
    1943 Packwood
    1943 Print · USGS
    Covers San Luis Obispo County, including Kern County, United States, and other nearby areas
  64. 1943 Map of Grant Lake
    1943 Map of Grant Lake
    1943 Grant Lake
    1943 Print · USGS
    Covers San Luis Obispo County, including Kern County, United States, and other nearby areas
  67. 1943 Map of Shandon
    1943 Map of Shandon
    1943 Shandon
    1943 Print · USGS
    Covers San Luis Obispo County, including Shandon, United States, and other nearby areas
  70. 1943 Map of Paso Robles
    1943 Map of Paso Robles
    1943 Paso Robles
    1943 Print · USGS
    Covers San Luis Obispo County, including Atascadero, Paso Robles, and other nearby areas
  73. 1943 Map of Commatti Canyon
    1943 Map of Commatti Canyon
    1943 Commatti Canyon
    1943 Print · USGS
    Covers San Luis Obispo County, including United States, California, and other nearby areas
Showing maps 1-25 of 78

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Frequently asked questions

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