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2020s Maps of Contra Costa County, California

Explore 26 historic maps of Contra Costa County from the 2020s. These maps offer a rare glimpse into what life looked like during the 2020s — 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 Contra Costa County's landscape evolved across the 2020s, 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 2020s, 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 Contra Costa County's history through authentic maps from the 2020s. This is your window into the past.

Contra Costa County, CA maps

(26)
  1. 2021 Map of Tassajara, 2021 Print
    2021 Map of Tassajara, 2021 Print
    2021 Tassajara
    2021 Print · USGS
    The eastern foothills of the Diablo Range come into focus in the early 2020s, showing a landscape defined by deep canyons and a extensive ridge-top trail network. Researchers can trace local landmarks like Tassajara, the heights of Oyster Point, and water sources at Sycamore Spring.
  4. 2021 Map of Clayton, 2021 Print
    2021 Map of Clayton, 2021 Print
    2021 Clayton
    2021 Print · USGS
    The foothills of the Diablo Range meet the expanding suburbs of the East Bay in this recent survey. You can trace the historic mining area near Nortonville, find the Live Oak Cem, or follow the high trails around Mount Diablo and North Peak.
  7. 2021 Map of Antioch South, 2021 Print
    2021 Map of Antioch South, 2021 Print
    2021 Antioch South
    2021 Print · USGS
    Covers Contra Costa County, including Antioch, Pittsburg, and other nearby areas
  10. 2021 Map of Brentwood, 2021 Print
    2021 Map of Brentwood, 2021 Print
    2021 Brentwood
    2021 Print · USGS
    Brentwood and Oakley are shown at a peak of modern growth in this 2021 survey of the California Delta's edge. Genealogists and local historians can trace the community's evolution through landmarks like the Byron Brentwood Knightsen Cem, Liberty High Sch, and the winding Marsh Creek Regional Trl.
  13. 2021 Map of Clifton Court Forebay, 2021 Print
    2021 Map of Clifton Court Forebay, 2021 Print
    2021 Clifton Court Forebay
    2021 Print · USGS
    The northern edge of the San Joaquin Valley meets the Delta in the early 2020s, showing a landscape defined by massive water projects and new growth. Trace the path of the Governor Edmund G Brown California Aqueduct near the residential streets of MOUNTAIN HOUSE and the runways of Byron Airport.
  16. 2021 Map of Byron Hot Springs, 2021 Print
    2021 Map of Byron Hot Springs, 2021 Print
    2021 Byron Hot Springs
    2021 Print · USGS
    The eastern foothills of the Diablo Range meet the San Joaquin Valley in this modern survey of the Contra Costa and Alameda border. Local historians can trace the topography surrounding Byron Hot Springs, Brushy Peak, and the Byron Airport.
  19. 2021 Map of Dublin, 2021 Print
    2021 Map of Dublin, 2021 Print
    2021 Dublin
    2021 Print · USGS
    The Tri-Valley area comes into sharp focus during this era of suburban expansion and hill-country preservation. Researchers can trace local history from the Dublin Pioneer Cem to the modern East County Hall of Justice while exploring the trails of Walpert Ridge.
  22. 2021 Map of Woodward Island, 2021 Print
    2021 Map of Woodward Island, 2021 Print
    2021 Woodward Island
    2021 Print · USGS
    The Sacramento-San Joaquin River Delta comes alive in this contemporary view of its intricate waterways and reclaimed islands. Trace the residential canals of Discovery Bay and the industrial path of the Mokelumne Aqueduct past Orwood.
  25. 2021 Map of Diablo, 2021 Print
    2021 Map of Diablo, 2021 Print
    2021 Diablo
    2021 Print · USGS
    Contra Costa County at the start of the 2020s shows a sophisticated blend of suburban growth and preserved open space along the foothills. Researchers can trace the modern development of Danville and San Ramon alongside geographic landmarks like Rock City and Black Hawk Ridge.
  28. 2021 Map of Livermore, 2021 Print
    2021 Map of Livermore, 2021 Print
    2021 Livermore
    2021 Print · USGS
    The Tri-Valley region is shown in its modern suburban form as the cities of the Amador Valley expanded toward the Diablo Range. Trace local history through family-named sites and landmarks like Radum, Roselawn Cem, and the tracks of the Southern Pacific.
  31. 2021 Map of Briones Valley, 2021 Print
    2021 Map of Briones Valley, 2021 Print
    2021 Briones Valley
    2021 Print · USGS
    Contra Costa County at the start of the 2020s shows a complex interface of suburban growth and protected ridge lands. Researchers can trace the Mokelumne Aqueduct or locate specific historical points like the John Muir National Historic Site and Orinda Village.
  34. 2021 Map of Richmond, 2021 Print
    2021 Map of Richmond, 2021 Print
    2021 Richmond
    2021 Print · USGS
    The East Bay shoreline and Berkeley Hills are revealed in this modern survey of Richmond's industrial and academic landscape. Trace the shipyard legacy at Rosie the Riveter National Historical Park or locate family sites near Saint Joseph Cem and Contra Costa College.
  37. 2021 Map of Walnut Creek, 2021 Print
    2021 Map of Walnut Creek, 2021 Print
    2021 Walnut Creek
    2021 Print · USGS
    Contra Costa County at the start of the 2020s shows a landscape where suburban growth meets preserved open space. Genealogists and hikers can trace the Iron Horse Regional Trail through WALNUT CREEK and locate landmarks like the Alamo - Lafayette Cemetery.
  40. 2021 Map of Antioch North, 2021 Print
    2021 Map of Antioch North, 2021 Print
    2021 Antioch North
    2021 Print · USGS
    The Sacramento-San Joaquin Delta comes into focus in this recent survey, showcasing the meeting of industrial cities and marshland islands. Trace local history through Collinsville Cem, the hilltop roads of Montezuma Hills, and the waterfronts of Antioch and Pittsburg.
  43. 2021 Map of Las Trampas Ridge, 2021 Print
    2021 Map of Las Trampas Ridge, 2021 Print
    2021 Las Trampas Ridge
    2021 Print · USGS
    The East Bay interior is shown here in the early twenty-first century, spanning the ridge lands between Walnut Creek and Danville. Trace the grounds of Saint Mary's College of California and the paths around Las Trampas Peak.
  46. 2021 Map of Oakland East, 2021 Print
    2021 Map of Oakland East, 2021 Print
    2021 Oakland East
    2021 Print · USGS
    The East Bay shoreline and hills appear in high detail during the early 2020s, showing the dense growth between Oakland and Moraga. Researchers can trace local landmarks like Mountain View Cem, the BART rail corridor, and Mills College.
  49. 2021 Map of Bouldin Island, 2021 Print
    2021 Map of Bouldin Island, 2021 Print
    2021 Bouldin Island
    2021 Print · USGS
    The California Delta islands come to life in this contemporary study of the waterways joining three counties. Trace the intricate shoreline and levee systems around Bouldin Island, the residential streets of Bethel Island, and the shipping lane of the Stockton Deep Water Channel.
  52. 2021 Map of San Quentin, 2021 Print
    2021 Map of San Quentin, 2021 Print
    2021 San Quentin
    2021 Print · USGS
    The Marin and Contra Costa shorelines meet at the San Pablo Strait in this contemporary survey of the northern Bay Area. Researchers can trace the waterfront from San Quentin down to the Tiburon Peninsula, or examine East Bay landmarks like Point Richmond and Brooks Island.
  55. 2021 Map of Benicia, 2021 Print
    2021 Map of Benicia, 2021 Print
    2021 Benicia
    2021 Print · USGS
    The Carquinez Strait corridor comes alive in this modern survey of the historic maritime and industrial heart of Solano County. Researchers can trace institutional landmarks like the California Maritime Academy and numerous local burial sites such as the Benicia City Cem or Alhambra Cem.
  58. 2021 Map of Jersey Island, 2021 Print
    2021 Map of Jersey Island, 2021 Print
    2021 Jersey Island
    2021 Print · USGS
    The California Delta's intricate network of islands and channels is captured here in the early 2020s. Researchers can trace the levee-lined borders of Jersey Island, the residential waterways of Bethel Island, and historic transit points like the Twitchell Island Ferry Rd.
  61. 2021 Map of Mare Island, 2021 Print
    2021 Map of Mare Island, 2021 Print
    2021 Mare Island
    2021 Print · USGS
    The northern reaches of San Francisco Bay appear in high detail during the early 2020s, showing the dense urban and industrial development of the East Bay. Trace local history through the streets of Vallejo, the naval heritage of Mare Island, and family markers at Hillside Cem.
  64. 2021 Map of Hayward, 2021 Print
    2021 Map of Hayward, 2021 Print
    2021 Hayward
    2021 Print · USGS
    The East Bay hills and coastal plain come alive in this detailed look at suburban growth. Trace family history at Lone Tree Cem or explore the transit network near Hayward Executive Airport and the BART rail line.
  67. 2021 Map of Vine Hill, 2021 Print
    2021 Map of Vine Hill, 2021 Print
    2021 Vine Hill
    2021 Print · USGS
    Suisun Bay's industrial and military shoreline is captured in this recent survey of the Suisun Bay area. Trace the legacy of the Port Chicago Naval Magazine National Memorial and follow the routes of the Mokelumne Aqueduct and Contra Costa Canal through Clyde and Vine Hill.
  70. 2022 Map of Honker Bay, 2022 Print
    2022 Map of Honker Bay, 2022 Print
    2022 Honker Bay
    2022 Print · USGS
    The industrial waterfront and sprawling marshes of the East Bay meet in this 2020s study. Researchers can trace the residential growth of Pittsburg and Bay Point or find maritime remnants at McAvoy and Chipps.
  73. 2022 Map of Petaluma Point, 2022 Print
    2022 Map of Petaluma Point, 2022 Print
    2022 Petaluma Point
    2022 Print · USGS
    San Pablo Bay and the Marin coastline are captured here in the early 2020s, showing the meeting of four major North Bay counties. Researchers can trace the unique shoreline topography of China Camp Point, the marshes of Tubbs Island, and hills like Turtle Back.
Showing maps 1-25 of 26

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Frequently asked questions

  • What are the different types of historical maps available for Contra Costa County?
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