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

Explore 10 historic maps of Irwin 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 Irwin'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 Irwin's history through authentic maps from the 1900s. This is your window into the past.

Irwin, CA maps

(10)
  1. 1917 Map of Turlock
    1917 Map of Turlock
    1917 Turlock
    1917 Print · USGS
    The San Joaquin Valley was rapidly evolving just before the First World War as new irrigation canals and rail lines defined the landscape. You can trace early settlement patterns near Delhi and Irwin, and locate rural landmarks like Roselawn School or the Electric RR.
  4. 1942 Map of Irwin
    1942 Map of Irwin
    1942 Irwin
    1942 Print · USGS
    The San Joaquin and Merced rivers dominate this 1940s landscape where early irrigation networks met established rail lines. Genealogists can trace rural school districts like Tegner Sch and Helmar Sch or locate old river crossings at Hills Ferry and Fremont Ford.
  7. 1947 Map of San Jose, 1948 Print
    1947 Map of San Jose, 1948 Print
    1947 San Jose
    1948 Print · USGS
    Northern California's heartland is captured here just after the war, showing the rapid growth of the Santa Clara and Central Valleys. Researchers can trace the legacy of rail and water at Castle Air Force Base, Stockton, and the Hetch Hetchy Aqueduct.
  10. 1948 Map of Turlock
    1948 Map of Turlock
    1948 Turlock
    1948 Print · USGS
    The San Joaquin Valley's agricultural heartland thrives in the late 1940s, showcasing the intricate irrigation and rail systems that supported its growth. Researchers can trace the rural school system at Roselawn Sch and Elim Sch or locate family footprints near Fairmead Farm and Delhi.
    2 unique versions available
  13. 1956 Map of San Jose
    1956 Map of San Jose
    1956 San Jose
    1956 Print · USGS
    Central California in the mid-fifties reveals the transition from sprawling orchards to growing urban hubs like San Jose and Stockton. Genealogists and historians can trace the rail-era landscape of the Mother Lode through Chinese Camp and Tuttletown, or follow the water through the Joaquin River and Calaveras Reservoir.
  16. 1961 Map of Turlock, 1962 Print
    1961 Map of Turlock, 1962 Print
    1961 Turlock
    1962 Print · USGS
    In the early sixties, the agricultural heart of the San Joaquin Valley revolved around the rail-and-canal network surrounding Turlock. Genealogists and local historians can trace family-named roads and schools like Roselawn Sch or locate the old commercial corridors of Delhi and Irwin.
    3 unique versions available
  19. 1962 Map of San Jose
    1962 Map of San Jose
    1962 San Jose
    1962 Print · USGS
    Central California in the early sixties showcases the expansion of the San Joaquin and Santa Clara valleys. Researchers can trace the rail-to-road transition along the Southern Pacific RR or locate landmarks like Castle USAF Base and Loma Prieta.
    4 unique versions available
  22. 1962 Map of Turlock, 1963 Print
    1962 Map of Turlock, 1963 Print
    1962 Turlock
    1963 Print · USGS
    The San Joaquin Valley's agricultural heartland is documented here during the early sixties. Trace historical landmarks like the Hilmar High Sch, find family plots at Stevinson Sunnyside Cem, and follow the Southern Pacific rail line.
    2 unique versions available
  25. 1966 Map of San Jose
    1966 Map of San Jose
    1966 San Jose
    1966 Print · USGS
    Central California in the mid-1960s reveals a landscape of massive irrigation projects and expanding Cold War military footprints. Researchers can trace the rail-and-river network of the San Joaquin Valley or locate specialized sites like Castle Air Force Base and the Sharp General Depot (Military).
  28. 1983 Map of Merced
    1983 Map of Merced
    1983 Merced
    1983 Print · USGS
    The San Joaquin Valley at the start of the eighties is captured here in its full agricultural and military height. Trace the legacy of Castle Air Force Base, old mines like Pocahontas Mine, and the vast Kesterson National Wildlife Refuge.
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