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1940s Maps of San Ramon, California

Explore 10 historic maps of San Ramon 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 Ramon'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 Ramon's history through authentic maps from the 1940s. This is your window into the past.

San Ramon, CA maps

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  1. 1941 Map of Pleasanton
    1941 Map of Pleasanton
    1941 Pleasanton
    1941 Print · USGS
    The Livermore Valley and East Bay hills are captured here in the early 1940s, showing a world of cattle ranchos and railroad towns. You can trace early landmarks like the Mission San Jose de Guadalupe, the Livermore Airport, and several rural one-room schoolhouses like Antone Sch.
  4. 1942 Map of Concord
    1942 Map of Concord
    1942 Concord
    1942 Print · USGS
    The East Bay interior was a landscape of expanding valley towns and deep-rooted ranching tracts in the early 1940s. Genealogists and historians can trace rail-era settlements like Concord, Lafayette, and Walnut Creek alongside local landmarks like St Marys College and Sherman Field.
  7. 1943 Map of Pleasanton
    1943 Map of Pleasanton
    1943 Pleasanton
    1943 Print · USGS
    The Livermore and Amador Valleys are captured during the early 1940s, showing a landscape of ranching, railroads, and early institutional development. Genealogists and historians can locate old schools like Stonybrook Sch and landmarks such as Mission San Jose de Guadalupe.
  10. 1943 Map of Concord
    1943 Map of Concord
    1943 Concord
    1943 Print · USGS
    The East Bay and Contra Costa interior appear here during the wartime era, showing the transition from urban waterfronts to rural valley communities. Researchers can trace early rail lines like the Sacramento Northern RR and locate local landmarks such as St Marys College and Acalanes Sch.
  13. 1943 Map of Mt. Diablo
    1943 Map of Mt. Diablo
    1943 Mt. Diablo
    1943 Print · USGS
    The Mt. Diablo foothills and San Ramon Valley are captured here during the early 1940s, showcasing a landscape of cattle ranches and remote schoolhouses. Genealogists and local historians can locate early landmarks like Blackhawk Ranch, Cowell, and the Morgan Territory Sch.
  16. 1947 Map of San Francisco, 1948 Print
    1947 Map of San Francisco, 1948 Print
    1947 San Francisco
    1948 Print · USGS
    The Bay Area in the late 1940s reveals a region transitioning from wartime intensity to post-war suburban growth. Trace the historic rail lines of the Southern Pacific RR or locate early military footprints at Fort Funston and Moffett Field.
  19. 1947 Map of San Jose, 1948 Print
    1947 Map of San Jose, 1948 Print
    1947 San Jose
    1948 Print · USGS
    Northern California's heartland is captured here just after the war, showing the rapid growth of the Santa Clara and Central Valleys. Researchers can trace the legacy of rail and water at Castle Air Force Base, Stockton, and the Hetch Hetchy Aqueduct.
  22. 1947 Map of Las Trampas Ridge, 1956 Print
    1947 Map of Las Trampas Ridge, 1956 Print
    1947 Las Trampas Ridge
    1956 Print · USGS
    Contra Costa County at the start of the postwar era shows a landscape of cattle ranches and early valley settlements. Trace the original footprints of Alamo and Danville alongside the Southern Pacific tracks and the St Marys College campus.
  25. 1948 Map of San Francisco, 1951 Print
    1948 Map of San Francisco, 1951 Print
    1948 San Francisco
    1951 Print · USGS
    The Bay Area in the late 1940s reveals a landscape defined by rapid post-war growth and a heavy military presence at the Golden Gate. Trace the development of early trans-bay infrastructure like the Oakland-Bay Bridge and historic coastal defense sites such as Fort Funston and Alcatraz Island.
  28. 1949 Map of Las Trampas Ridge
    1949 Map of Las Trampas Ridge
    1949 Las Trampas Ridge
    1949 Print · USGS
    Contra Costa and Alameda counties are shown here just after the war, featuring a landscape of steep ridges and developing valleys. Genealogists and researchers can trace the Southern Pacific line through Alamo, locate the Edenvale School, and study the early footprint of St Marys College.
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Frequently asked questions

  • What are the different types of historical maps available for San Ramon?
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