1900-1909 Maps of San Diego County, California
Explore 17 historic maps of San Diego County from 1900-1909. These maps offer a rare glimpse into what life looked like during the 1900s — 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 Diego County's landscape evolved across the 1900s, 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 1900s, 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 Diego County's history through authentic maps from the 1900s. This is your window into the past.
San Diego County, CA maps
(17)- 1901 Map of Southern California Sheet No. 1
1901 Southern California Sheet No. 11901 Print · USGSGreater Los Angeles at the dawn of the twentieth century is a landscape of growing citrus towns and a burgeoning rail network. Genealogists and historians can trace the early gridded streets of Hollywood and Pasadena or locate landmarks like Bear Lake and the Cahuilla Indian Reservation.6 unique versions available - 1901 Map of Elcajon
1901 Elcajon1901 Print · USGSSan Diego's eastern valleys are shown at the turn of the century as agriculture and water infrastructure began to reshape the landscape. Trace the path of the San Diego Flume and its tunnels or the rail line serving Foster, Lakeside, and Elcajon. - 1901 Map of Elsinore
1901 Elsinore1901 Print · USGSRiverside and the Alessandro Valley are shown here during a peak of early mining and rail expansion. Genealogists and historians can trace the Southern California RR through Perris or locate the Alberhill Coal Mine and Indian School.8 unique versions available - 1901 Map of Escondido
1901 Escondido1901 Print · USGSInland San Diego County was a landscape of citrus groves and cattle ranges at the dawn of the twentieth century. Genealogists can trace family footprints in early settlements like Escondido and Bernardo, or follow the rail path of the Southern California R. R. Escondido Branch.6 unique versions available - 1901 Map of Oceanside
1901 Oceanside1901 Print · USGSCoastal San Diego County is captured at the turn of the century, showing the early rail-driven growth of the shoreline. Genealogists and historians can trace the foundations of Oceanside, Carlsbad, and the San Luis Rey Mission along the Surf Line rail route.8 unique versions available - 1901 Map of San Luis Rey
1901 San Luis Rey1901 Print · USGSNorthern San Diego County is shown at the turn of the century as a landscape of sprawling ranchos, early coastal railroads, and secluded mountain valleys. Researchers can trace the routes of the California Southern RR or locate early settlements like De Luz, Pala, and the Temecula Indian Res.8 unique versions available - 1902 Map of Capistrano
1902 Capistrano1902 Print · USGSThe Orange County coast and its expansive ranchos are captured here just before the twentieth century's rapid changes. Researchers can trace the early Southern California rail line past Capistrano and explore old canyon routes like Cristianitos.4 unique versions available - 1902 Map of Corona
1902 Corona1902 Print · USGSThe Orange County and Riverside borderlands at the start of the 1900s show an era of rapid rail expansion and water engineering. Researchers can trace the early footprints of Anaheim and Orange or find vanished industry at the Santiago Coal Mine.7 unique versions available - 1903 Map of Cuyamaca
1903 Cuyamaca1903 Print · USGSInland San Diego County at the turn of the century reveals a landscape defined by new water infrastructure and rail lines. Genealogists and historians can trace early settlements like Lakeside, Dulzura, and the remote Honey Springs Ranch along the international border.6 unique versions available - 1903 Map of La Jolla
1903 La Jolla1903 Print · USGSCoastal San Diego at the turn of the century shows a landscape of deep canyons and emerging rail towns before the rapid expansion of the modern city. Genealogists and historians can trace early settlements like Old Town, Pacific Beach, and the inland community of Poway along the Southern California R. R.9 unique versions available - 1903 Map of Elcajon
1903 Elcajon1903 Print · USGSSan Diego's interior transitions from rail-linked valleys to high reservations at the turn of the century. Trace the path of the San Diego Flume and find vanished railroad stops like Foster and Moreno alongside the growing Elcajon Valley.5 unique versions available - 1903 Map of Ramona
1903 Ramona1903 Print · USGSSan Diego County's high country and interior valleys are captured here at the start of the twentieth century, during a time of mountain ranching and early gold mining. Researchers can trace the early footprints of Julian, Ramona, and Mesa Grande, alongside the boundaries of the San Jacinto Forest Reserve.6 unique versions available - 1904 Map of Indio
1904 Indio1904 Print · USGSThe Conchilla Desert and San Jacinto Mountains appear here at the turn of the century as the Southern Pacific rail corridor began to transform the valley. Trace early settlements and tribal lands like Cabezon Indian Res., Figtree John, and the Asbestos Mine.7 unique versions available - 1904 Map of San Diego
1904 San Diego1904 Print · USGSSan Diego and its harbor are captured here in the early twentieth century, showing a coastal landscape defined by ranchos and early rail lines. Researchers can trace the development of National City, locate the original grounds of Ft. Rosecrans, and see the early layout of Chulavista.9 unique versions available - 1904 Map of Southern California Sheet No. 2
1904 Southern California Sheet No. 21904 Print · USGSSouthern California during the early 1900s shows the transition from vast ranchos to coastal rail towns. Genealogists and researchers can trace the Southern California R.R. through Oceanside, explore old land grants like Mission Viejo, and locate early settlements from Fallbrook to Julian.5 unique versions available - 1904 Map of Southern California Sheet No. 1, 1905 Print
1904 Southern California Sheet No. 11905 Print · USGSSouthern California at the dawn of the twentieth century shows a landscape of citrus groves and coastal towns connected by rail. Genealogists and historians can trace early settlements like San Juan Capistrano, find remote sites like the Rose Mine, and study the original water systems of the Santa Ana River.2 unique versions available - 1906 Map of Capistrano, 1921 Print
1906 Capistrano1921 Print · USGSThe Orange and San Diego county borderlands appear here just before the turn of the century, when large land grants still defined the coast. You can trace the Southern California railroad line through San Juan down to the remote shores of San Onofre.
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Showing maps 1-17 of 17
Top cities of San Diego County
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- Chula Vista historical maps
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- Carlsbad historical maps
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