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1900s (20th Century) Maps of Pomona, California

Explore 25 historic maps of Pomona from the 1900s (20th Century). 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 Pomona'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 Pomona's history through authentic maps from the 1900s. This is your window into the past.

Pomona, CA maps

(25)
  1. 1900 Map of Cucamonga
    1900 Map of Cucamonga
    1900 Cucamonga
    1900 Print · USGS
    San Bernardino and Los Angeles Counties are shown here during the late nineteenth-century citrus boom, before urban sprawl merged these distinct agricultural colonies. Trace early rail lines through Ioamosa, Claremont, and Chino, or locate the isolated Toll House and Power House in the northern canyons.
  4. 1901 Map of Southern California Sheet No. 1
    1901 Map of Southern California Sheet No. 1
    1901 Southern California Sheet No. 1
    1901 Print · USGS
    Greater 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
  7. 1903 Map of Cucamonga
    1903 Map of Cucamonga
    1903 Cucamonga
    1903 Print · USGS
    The Inland Empire is shown at a pivotal moment of agricultural expansion in the early twentieth century, when irrigation was transforming the valley. Trace the early rail networks of the Southern Pacific and the Santa Fe through citrus-growing centers like Ontario, Cucamonga, and Ioamosa.
    11 unique versions available
  10. 1904 Map of Pomona
    1904 Map of Pomona
    1904 Pomona
    1904 Print · USGS
    The eastern San Gabriel Valley is shown here at the turn of the century as a burgeoning network of citrus towns and vital rail lines. Genealogists can trace early homesteads and vanished stops such as Lordsburg, Alosta, and the Rowland Siding along the Southern Pacific RR.
    7 unique versions available
  13. 1904 Map of Southern California Sheet No. 1, 1905 Print
    1904 Map of Southern California Sheet No. 1, 1905 Print
    1904 Southern California Sheet No. 1
    1905 Print · USGS
    Southern 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
  16. 1927 Map of Covina
    1927 Map of Covina
    1927 Covina
    1927 Print · USGS
    The eastern San Gabriel Valley was a thriving agricultural and transit hub in the 1920s, dominated by orchards and sprawling ranch lands. Genealogists can trace family roots through settlements like Covina, the Diamond Bar Ranch, and the Protestant Home for Boys.
    3 unique versions available
  19. 1928 Map of La Verne
    1928 Map of La Verne
    1928 La Verne
    1928 Print · USGS
    In the mid-1920s, the foothill communities east of Los Angeles were emerging from their agricultural roots into structured townsites. Researchers can trace the early Pacific Electric rail lines and locate local landmarks such as Bonita High School and the Cem in La Verne.
    2 unique versions available
  22. 1928 Map of Claremont
    1928 Map of Claremont
    1928 Claremont
    1928 Print · USGS
    Eastern Los Angeles County appears here in the late twenties, during a period of rapid suburban and academic growth. Researchers can trace the early layouts of Claremont and Pomona, locating Pomona College, the Pacific Electric lines, and the Pomona Cemetery.
    3 unique versions available
  25. 1933 Map of Ontario
    1933 Map of Ontario
    1933 Ontario
    1933 Print · USGS
    The citrus heart of the Inland Empire comes into focus in the early thirties as it transitions into a major transit hub. Genealogists and historians can trace the early footprints of Ontario, Upland, and Chino, while locating landmarks like Bellevue Cem and the Pacific Electric line.
  28. 1933 Map of La Verne and Evey Canyon
    1933 Map of La Verne and Evey Canyon
    1933 La Verne and Evey Canyon
    1933 Print · USGS
    The northern reaches of the San Gabriel Valley met the mountain wilderness in the early thirties. Trace early forest infrastructure and recreation spots like Wolfskill Camp, the San Dimas Lookout, and the newly constructed San Dimas Dam.
  31. 1940 Map of La Verne
    1940 Map of La Verne
    1940 La Verne
    1940 Print · USGS
    La Verne and Claremont are captured here just before the mid-century population boom, showing a landscape defined by foothill canyons and early college campuses. Genealogists and historians can trace local landmarks like Scripps College, the Metropolitan Aqueduct, and Wolfskill Camp.
    4 unique versions available
  34. 1942 Map of Ontario and Vicinity
    1942 Map of Ontario and Vicinity
    1942 Ontario and Vicinity
    1942 Print · USGS
    The Inland Empire is shown at a pivotal moment in the early 1940s, when orange groves and vineyards still dominated the landscape between the mountains and the valley floor. Researchers can trace the rail corridors of the SOUTHERN PACIFIC and the Pacific Electric while locating old neighborhood markers like Narod, Sunsweet, and the Sierra Vista Sch.
    2 unique versions available
  37. 1944 Map of Cucamonga
    1944 Map of Cucamonga
    1944 Cucamonga
    1944 Print · USGS
    The San Gabriel Valley and Inland Empire are shown here during the mid-forties, capturing the peak of the region's citrus era and rail-based transit. Researchers can trace early campus layouts at Pomona College or locate vanished landmarks like the Monta Vista Resort and Padua Hills Theater.
  40. 1953 Map of San Bernardino
    1953 Map of San Bernardino
    1953 San Bernardino
    1953 Print · USGS
    Southern California underwent massive post-war growth as suburban sprawl reached the foothills of the San Bernardino Mountains. Genealogists and historians can trace the rail-and-road roots of the Inland Empire through the Union Pacific RR and Lake Arrowhead resorts.
    2 unique versions available
  43. 1954 Map of Ontario, 1955 Print
    1954 Map of Ontario, 1955 Print
    1954 Ontario
    1955 Print · USGS
    The Pomona Valley was undergoing rapid postwar transformation in the mid-fifties as academic and industrial expansion reshaped the landscape. Researchers can find prominent landmarks like Pomona College, the Ontario International Airport, and the sprawling grounds of the Chino Prison.
    2 unique versions available
  46. 1954 Map of San Dimas, 1956 Print
    1954 Map of San Dimas, 1956 Print
    1954 San Dimas
    1956 Print · USGS
    Eastern Los Angeles County appears at a moment of transition in the mid-fifties as suburban growth begins to surround the area's agricultural roots. Researchers can trace historic schools and cemeteries, from Evergreen Cemetery to the Naval Ordnance Plant and Diamond Bar Ranch.
    2 unique versions available
  49. 1954 Map of Ontario, 1959 Print
    1954 Map of Ontario, 1959 Print
    1954 Ontario
    1959 Print · USGS
    The Pomona Valley in the mid-fifties is captured here as a sprawling network of citrus-era settlements and rising post-war industry. Genealogists and local researchers can trace the early footprints of the Claremont Associated Colleges, the Steel Plant, and Ontario International Airport.
    5 unique versions available
  52. 1956 Map of San Bernardino
    1956 Map of San Bernardino
    1956 San Bernardino
    1956 Print · USGS
    Southern California's Inland Empire and High Desert come into focus in the mid-fifties as agriculture gives way to suburban and military growth. Trace early rail lines like the Pacific Electric or find remote landmarks like Camp Rock Mine and George AFB.
  55. 1957 Map of San Bernardino
    1957 Map of San Bernardino
    1957 San Bernardino
    1957 Print · USGS
    Southern California's Inland Empire and High Desert met during the postwar expansion of the late fifties. Genealogists and historians can trace the growth of San Bernardino and Redlands alongside remote landmarks like Edwards AFB and the Camp Rock Mine.
  58. 1958 Map of San Bernardino, 1975 Print
    1958 Map of San Bernardino, 1975 Print
    1958 San Bernardino
    1975 Print · USGS
    Southern California’s Inland Empire and High Desert come into focus during the mid-century boom, showing the rise of suburbs and massive military installations. Researchers can trace the rail networks of the Union Pacific RR or locate landmarks like Norton AFB and Big Bear Lake.
  61. 1959 Map of San Bernardino
    1959 Map of San Bernardino
    1959 San Bernardino
    1959 Print · USGS
    Southern California underwent a massive transformation in the late fifties as suburban growth and military power reshaped the desert and valley. Researchers can trace the legacy of the Union Pacific Railroad and locate early footprints of Joshua Tree National Monument and Edwards Air Force Base.
  64. 1966 Map of San Bernardino
    1966 Map of San Bernardino
    1966 San Bernardino
    1966 Print · USGS
    The San Bernardino Valley and Mojave Desert met during a period of massive military and suburban growth in the mid-sixties. Genealogists and historians can trace the development of Edwards Air Force Base, old desert mines like the Bagdad Chase Mine, and mountain communities near Big Bear Lake.
  67. 1966 Map of San Dimas, 1967 Print
    1966 Map of San Dimas, 1967 Print
    1966 San Dimas
    1967 Print · USGS
    The San Gabriel Valley suburbs were expanding rapidly in the mid-sixties, encircling the high ground of the San Jose Hills. Genealogists and researchers can trace the institutional growth of the era at Cal Poly, Pacific State Hospital, and Sacred Heart Ch.
    4 unique versions available
  70. 1967 Map of Ontario, 1969 Print
    1967 Map of Ontario, 1969 Print
    1967 Ontario
    1969 Print · USGS
    The Pomona Valley at the height of the 1960s suburban boom shows a dense landscape of industry, academia, and transit. Researchers can trace the layout of the Claremont Colleges, find historic resting places like Palomares Cem, and locate the expansive Ontario International Airport.
    3 unique versions available
  73. 1982 Map of San Bernardino, 1983 Print
    1982 Map of San Bernardino, 1983 Print
    1982 San Bernardino
    1983 Print · USGS
    The Inland Empire and San Gabriel Valley met at a peak of suburban and industrial expansion in the early eighties. Researchers can trace the massive rail infrastructure through Cajon Pass and locate landmarks like Norton Air Force Base or the Fontana International Raceway.
End of results
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