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1940s Maps of Contra Costa County, California

Explore 31 historic maps of Contra Costa 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 Contra Costa 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 Contra Costa County's history through authentic maps from the 1940s. This is your window into the past.

Contra Costa County, CA maps

(31)
  1. 1940 Map of Byron, 1943 Print
    1940 Map of Byron, 1943 Print
    1940 Byron
    1943 Print · USGS
    Covers Contra Costa County, including Antioch, Brentwood, and other nearby areas
  4. 1940 Map of Carquinez Strait, 1963 Print
    1940 Map of Carquinez Strait, 1963 Print
    1940 Carquinez Strait
    1963 Print · USGS
    Covers Contra Costa County, including Concord, Vallejo, and other nearby areas
    2 unique versions available
  7. 1941 Map of Pleasanton
    1941 Map of Pleasanton
    1941 Pleasanton
    1941 Print · USGS
    Covers Contra Costa County, including Fremont, Hayward, and other nearby areas
  10. 1942 Map of Mare Island
    1942 Map of Mare Island
    1942 Mare Island
    1942 Print · USGS
    Covers Contra Costa County, including Vallejo, Richmond, and other nearby areas
  13. 1942 Map of Concord
    1942 Map of Concord
    1942 Concord
    1942 Print · USGS
    Covers Contra Costa County, including Oakland, Concord, and other nearby areas
  16. 1942 Map of Carquinez
    1942 Map of Carquinez
    1942 Carquinez
    1942 Print · USGS
    Covers Contra Costa County, including Concord, Vallejo, and other nearby areas
  19. 1942 Map of Hayward
    1942 Map of Hayward
    1942 Hayward
    1942 Print · USGS
    Covers Contra Costa County, including Oakland, Fremont, and other nearby areas
  22. 1943 Map of Pleasanton
    1943 Map of Pleasanton
    1943 Pleasanton
    1943 Print · USGS
    Covers Contra Costa County, including Fremont, Hayward, and other nearby areas
  25. 1943 Map of Concord
    1943 Map of Concord
    1943 Concord
    1943 Print · USGS
    Covers Contra Costa County, including Oakland, Concord, and other nearby areas
  28. 1943 Map of Mt. Diablo
    1943 Map of Mt. Diablo
    1943 Mt. Diablo
    1943 Print · USGS
    Covers Contra Costa County, including Concord, Antioch, and other nearby areas
  31. 1947 Map of Santa Rosa
    1947 Map of Santa Rosa
    1947 Santa Rosa
    1947 Print · USGS
    Covers Contra Costa County, including Santa Rosa, Concord, and other nearby areas
  34. 1947 Map of San Francisco, 1948 Print
    1947 Map of San Francisco, 1948 Print
    1947 San Francisco
    1948 Print · USGS
    Covers Contra Costa County, including San Jose, San Francisco, and other nearby areas
  37. 1947 Map of Sacramento, 1948 Print
    1947 Map of Sacramento, 1948 Print
    1947 Sacramento
    1948 Print · USGS
    Covers Contra Costa County, including Sacramento, Stockton, and other nearby areas
    2 unique versions available
  40. 1947 Map of San Jose, 1948 Print
    1947 Map of San Jose, 1948 Print
    1947 San Jose
    1948 Print · USGS
    Covers Contra Costa County, including San Jose, Stockton, and other nearby areas
  43. 1947 Map of Richmond, 1952 Print
    1947 Map of Richmond, 1952 Print
    1947 Richmond
    1952 Print · USGS
    Covers Contra Costa County, including San Francisco, Berkeley, and other nearby areas
    2 unique versions available
  46. 1947 Map of Walnut Creek, 1954 Print
    1947 Map of Walnut Creek, 1954 Print
    1947 Walnut Creek
    1954 Print · USGS
    Covers Contra Costa County, including Concord, Walnut Creek, and other nearby areas
  49. 1947 Map of Briones Valley, 1954 Print
    1947 Map of Briones Valley, 1954 Print
    1947 Briones Valley
    1954 Print · USGS
    Covers Contra Costa County, including Oakland, Berkeley, and other nearby areas
  52. 1947 Map of Oakland East, 1954 Print
    1947 Map of Oakland East, 1954 Print
    1947 Oakland East
    1954 Print · USGS
    Covers Contra Costa County, including Oakland, Berkeley, and other nearby areas
    3 unique versions available
  55. 1947 Map of San Quentin, 1956 Print
    1947 Map of San Quentin, 1956 Print
    1947 San Quentin
    1956 Print · USGS
    Covers Contra Costa County, including San Francisco, Richmond, and other nearby areas
  58. 1947 Map of Las Trampas Ridge, 1956 Print
    1947 Map of Las Trampas Ridge, 1956 Print
    1947 Las Trampas Ridge
    1956 Print · USGS
    Covers Contra Costa County, including Oakland, San Ramon, and other nearby areas
  61. 1947 Map of Hayward, 1957 Print
    1947 Map of Hayward, 1957 Print
    1947 Hayward
    1957 Print · USGS
    Covers Contra Costa County, including Oakland, Hayward, and other nearby areas
  64. 1948 Map of San Quentin
    1948 Map of San Quentin
    1948 San Quentin
    1948 Print · USGS
    Covers Contra Costa County, including San Francisco, Richmond, and other nearby areas
    2 unique versions available
  67. 1948 Map of Sacramento, 1951 Print
    1948 Map of Sacramento, 1951 Print
    1948 Sacramento
    1951 Print · USGS
    Covers Contra Costa County, including Sacramento, Stockton, and other nearby areas
  70. 1948 Map of San Francisco, 1951 Print
    1948 Map of San Francisco, 1951 Print
    1948 San Francisco
    1951 Print · USGS
    Covers Contra Costa County, including San Jose, San Francisco, and other nearby areas
  73. 1949 Map of Walnut Creek
    1949 Map of Walnut Creek
    1949 Walnut Creek
    1949 Print · USGS
    Covers Contra Costa County, including Concord, Walnut Creek, and other nearby areas
    2 unique versions available
Showing maps 1-25 of 31

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Frequently asked questions

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