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1930s Maps of San Luis Obispo County, California

Explore 7 historic maps of San Luis Obispo County from the 1930s. These maps offer a rare glimpse into what life looked like during the 1930s — 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 1930s, 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 1930s, 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 1930s. This is your window into the past.

San Luis Obispo County, CA maps

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  1. 1932 Map of Adelaida
    1932 Map of Adelaida
    1932 Adelaida
    1932 Print · USGS
    San Luis Obispo County’s interior highlands appear here between the world wars, showing a landscape of remote mountain ranches and creek-side settlements. Genealogists can trace early homesteads near the German Church or locate rural schoolhouses like Lincoln School and Asuncion School.
    2 unique versions available
  4. 1932 Map of La Panza
    1932 Map of La Panza
    1932 La Panza
    1932 Print · USGS
    San Luis Obispo County ranch lands meet the high desert during the early 1930s. Genealogists and local historians can trace family-named outposts like La Panza Ranch, the waters of Carnaza Spr, and the remote French Camp.
  7. 1935 Map of La Panza
    1935 Map of La Panza
    1935 La Panza
    1935 Print · USGS
    The San Luis Obispo backcountry comes into focus during the mid-thirties, showing the rugged ranch lands between the mountains and the desert flats. Researchers can trace historic creek-side settlements like La Panza or locate water sources such as Mustang Spr and Carriaza Spr.
  10. 1936 Map of La Panza
    1936 Map of La Panza
    1936 La Panza
    1936 Print · USGS
    The ranching and mining country of eastern San Luis Obispo County is captured here in the mid-1930s. Genealogists and researchers can trace family lands near La Panza Ranch, locate the camp at French Camp, or follow the course of Placer Creek.
    3 unique versions available
  13. 1937 Map of Branch Mtn
    1937 Map of Branch Mtn
    1937 Branch Mtn
    1937 Print · USGS
    The backcountry of San Luis Obispo and Santa Barbara counties is captured here in the late 1930s, showing a landscape defined by ranching and high peaks. Genealogists and historians can trace family holdings like the Carrizo Ranch, Gifford Ranch, and Rice Ranch along the banks of the Cuyama River.
  16. 1937 Map of Cayucos
    1937 Map of Cayucos
    1937 Cayucos
    1937 Print · USGS
    The San Luis Obispo coastline appears here in the late 1930s, showcasing early coastal settlements and industrial sites. Researchers can locate the Standard Oil Co Estero Bay Tankage and Loading Station, the rural Banning Sch, and landmarks like Morro Rock.
  19. 1937 Map of San Simeon, 1942 Print
    1937 Map of San Simeon, 1942 Print
    1937 San Simeon
    1942 Print · USGS
    The Central California coast appears here in the late 1930s, showing the early infrastructure surrounding the iconic Hearst Castle and Hearst Ranch. Genealogists and historians can trace family locations at the Old Castro House, the Cambria Mine, and rural institutions like the Santa Rosa School.
End of results
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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?
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  • 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?