1940s Maps of Napa, California

Explore 5 historic maps of Napa 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 Napa'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 Napa's history through authentic maps from the 1940s. This is your window into the past.


Napa, CA maps

(5)
  1. 1942 Map of Mare Island
    1942 Map of Mare Island
    1942 Mare Island
    1942 Print · USGS
    The northern reaches of San Pablo Bay come alive in this wartime survey, showing a landscape of vital naval yards and marshland agriculture. Genealogists and historians can trace rail depots like Napa Junction, rural landmarks like American Canyon School, and the industrial waterfronts of Vallejo and Oleum.

  2. 1942 Map of Sonoma
    1942 Map of Sonoma
    1942 Sonoma
    1942 Print · USGS
    The Napa and Sonoma valleys are captured here during the early 1940s, showing the established rail and agricultural networks of the North Bay. Researchers can trace historic landmarks like the Veterans Home, the Quick Silver Mine, and early vineyard sites at Zinfandel and Rutherford.

  3. 1947 Map of Santa Rosa
    1947 Map of Santa Rosa
    1947 Santa Rosa
    1947 Print · USGS
    Northern California in the late 1940s was a landscape of agricultural valleys and vital rail hubs. Trace the historic routes of the Northwestern Pacific through Healdsburg or explore the mid-century waterfronts of Vallejo and Benicia near Mare Island.

  4. 1949 Map of Santa Rosa
    1949 Map of Santa Rosa
    1949 Santa Rosa
    1949 Print · USGS
    The North Bay and Wine Country appear here in the late 1940s, when the Northwestern Pacific RR still dominated regional transit. Genealogists and historians can trace old coastal outposts like Anchor Bay Settlement and the early layout of Santa Rosa.
    2 unique versions available

  5. 1949 Map of Cuttings Wharf, 1956 Print
    1949 Map of Cuttings Wharf, 1956 Print
    1949 Cuttings Wharf
    1956 Print · USGS
    The Napa River delta in the late 1940s is a maze of tidal sloughs and growing railroad towns. Genealogists can trace family names at Cuttings Wharf, old rural schools like Los Amigos Sch, and early aviation sites like Vallejo Sky Harbor.
    8 unique versions available

End of results
Showing maps 1-5 of 5

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Frequently asked questions

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