1940s Maps of Oceanside, California

Explore 19 historic maps of Oceanside 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 Oceanside'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 Oceanside's history through authentic maps from the 1940s. This is your window into the past.


Oceanside, CA maps

(19)
  1. 1941 Map of Margarita Peak, 1961 Print
    1941 Map of Margarita Peak, 1961 Print
    1941 Margarita Peak
    1961 Print · USGS
    San Diego's coastal ranch lands and backcountry peaks are captured here in the early forties, just before the landscape shifted toward major military use. Researchers can trace historic family estates like Rancho Santa Margarita and old rail stops along the AT&SF RR near De Luz Station.

  2. 1942 Map of Margarita Peak
    1942 Map of Margarita Peak
    1942 Margarita Peak
    1942 Print · USGS
    During the early years of World War II, this region of San Diego County remained a landscape of vast ranchos and scattered citrus groves. Genealogists can trace family holdings like Doville Ranch and community hubs including Deluz PO and the Horno Canyon CCC Camp.

  3. 1942 Map of Temecula
    1942 Map of Temecula
    1942 Temecula
    1942 Print · USGS
    Northern San Diego County and southern Riverside County are mapped here in the early 1940s, showing a rural landscape of canyons and ranch lands. Genealogists can trace family holdings at San Luis Rey Rancho or find early schools like Lilac Valley Sch.

  4. 1942 Map of Oceanside
    1942 Map of Oceanside
    1942 Oceanside
    1942 Print · USGS
    Northern San Diego County coastal life during the early 1940s is shown here along the Pacific shoreline. Researchers can trace the original footprints of Carlsbad, Encinitas, and Leucadia, or find family landmarks like Libby Sch and the San Luis Rey Mission.

  5. 1942 Map of Escondido
    1942 Map of Escondido
    1942 Escondido
    1942 Print · USGS
    Northern San Diego County is captured here in the early 1940s, showing the inland citrus and ranching valleys before major development. Researchers can locate early schoolhouses like Rincon Sch and trace the original Escondido Branch rail line.

  6. 1944 Map of Margarita Peak
    1944 Map of Margarita Peak
    1944 Margarita Peak
    1944 Print · USGS
    The northern reaches of San Diego County are documented here during the mid-1940s, highlighting the vast ranching estates and mountain canyons. Trace the path of the Atchison Topeka and Santa Fe railroad or locate legacy holdings like Rancho Santa Margarita and Doville Ranch.

  7. 1944 Map of Morro Hill
    1944 Map of Morro Hill
    1944 Morro Hill
    1944 Print · USGS
    The Los Padres National Forest high country is meticulously mapped in the mid-1940s, showing the intersection of Santa Barbara and Ventura counties. Historians can trace the isolation of the Apache School and the high-altitude Potrero Seco settlement.

  8. 1947 Map of Santa Ana, 1949 Print
    1947 Map of Santa Ana, 1949 Print
    1947 Santa Ana
    1949 Print · USGS
    Southern California is depicted here in the late forties, showing the expansion of the Inland Empire and the Orange County coast. Researchers can trace the early layout of Palm Springs or locate long-standing tribal lands like the Pala Indian Reservation and Rincon Indian Res.

  9. 1947 Map of Oceanside, 1957 Print
    1947 Map of Oceanside, 1957 Print
    1947 Oceanside
    1957 Print · USGS
    The Southern California coast undergoes a military transformation in the years following World War II as Camp Pendleton expands. Researchers can trace the early layout of Oceanside and the intersection of the Coast Highway with the Atchison Topeka and Santa Fe railroad.
    2 unique versions available

  10. 1948 Map of San Luis Rey, 1955 Print
    1948 Map of San Luis Rey, 1955 Print
    1948 San Luis Rey
    1955 Print · USGS
    The North County coastline and San Luis Rey valley appear here in the late Forties during a period of steady post-war expansion. Researchers can trace the early footprints of Carlsbad and Oceanside, locate the Academy of the Little Flower, or find defunct Clay Pits near Agua Hedionda.
    3 unique versions available

  11. 1948 Map of San Marcos, 1955 Print
    1948 Map of San Marcos, 1955 Print
    1948 San Marcos
    1955 Print · USGS
    Post-war San Diego County comes to life as citrus groves and early suburban growth meet the rugged San Marcos Mountains. Trace local heritage at San Marcos Cem, the early campus of Palomar Junior College and High School, and the San Marcos Valley Airport.
    2 unique versions available

  12. 1948 Map of Bonsall, 1956 Print
    1948 Map of Bonsall, 1956 Print
    1948 Bonsall
    1956 Print · USGS
    Bonsall and the San Luis Rey River valley are shown here just after the war, when the landscape was a mix of working cattle ranches and emerging residential heights. Genealogists and local historians can locate early landmarks like Duffy Ranch Sch, Dulin Ranch, and the Fallbrook Naval Reservation.
    2 unique versions available

  13. 1948 Map of Morro Hill, 1960 Print
    1948 Map of Morro Hill, 1960 Print
    1948 Morro Hill
    1960 Print · USGS
    Coastal San Diego County appears here during the post-war buildup of the late 1940s, showing the massive integration of military and rail infrastructure. Genealogists and researchers can trace the early layout of Camp Pendleton, the Supply Depot, and the vanished stops of the Atchison Topeka and Santa Fe Railway at Ysidora.

  14. 1949 Map of San Luis Rey
    1949 Map of San Luis Rey
    1949 San Luis Rey
    1949 Print · USGS
    Coastal San Diego County is shown here in the late forties, just as the postwar boom began reshaping the shoreline between the naval reservation and the lagoons. You can trace the historic grounds of Mission San Luis Rey De Francia and locate landmarks like the Oceanside Municipal Airport and Rancho Guajome.

  15. 1949 Map of Bonsall
    1949 Map of Bonsall
    1949 Bonsall
    1949 Print · USGS
    Northern San Diego County is captured here in the late 1940s as a landscape of large ranches and riverside settlements. Genealogists can trace property and community roots near Bonsall, the Duffy Ranch Sch, and the extensive Circle R Ranch.

  16. 1949 Map of Morro Hill
    1949 Map of Morro Hill
    1949 Morro Hill
    1949 Print · USGS
    Coastal San Diego County appears in the late 1940s as a massive strategic hub during the early years of the Camp Joseph H Pendleton Naval Reservation. Genealogists and historians can trace the foundations of the Naval Hospital, the rail stop at Ysidora, and the original Home Ranch site.
    2 unique versions available

  17. 1949 Map of Oceanside
    1949 Map of Oceanside
    1949 Oceanside
    1949 Print · USGS
    Coastal San Diego County was undergoing a major military and industrial transition just after the war. Researchers can trace the early layout of Camp Pendleton, the rail activity at Fallbrook Junc, and the path of the original Coast Highway.

  18. 1949 Map of San Marcos
    1949 Map of San Marcos
    1949 San Marcos
    1949 Print · USGS
    Northern San Diego County is captured here in the late 1940s, showing a landscape of burgeoning agricultural valleys and rugged mountain peaks. Genealogists can locate family landmarks like the San Marcos Cem, Rich-mar Sch, and the early San Marcos Valley Airport.

  19. 1949 Map of Santa Ana
    1949 Map of Santa Ana
    1949 Santa Ana
    1949 Print · USGS
    Southern California underwent a profound transformation in the late 1940s as military installations and citrus groves shared the landscape. Researchers can trace early coastal growth at Laguna Beach, military history at Camp Pendleton, and the rail corridors of the Pacific Electric.

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Frequently asked questions

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