Old Maps of Napa County, California for Genealogy
Trace your family roots with 180 historic maps of Napa County. These high-res maps reveal old neighborhoods, homesites, landmarks, and streets — helping you uncover where your ancestors lived and how the area evolved over time.
- Explore historic neighborhoods: Identify where your relatives may have lived in the 1800s or 1900s.
- Compare maps over time: Trace the changes in streets, buildings, and landmarks for multi-generational research.
- Perfect for genealogy & ancestry research: Used by family historians and researchers to map out lineage and migration.
These maps are an incredible resource for exploring your personal connection to Napa County's past.
Napa County, CA maps
(180)- 1896 Map of Carquinez Strait, 1954 Print
1896 Carquinez Strait1954 Print · USGSThe industrial waterfront of the Carquinez Strait comes alive in the 1890s, where shipping channels meet the rails. Genealogists and historians can trace early bay settlements from the U.S. Arsenal at Benicia to the rail hubs of Vallejo and Martinez. - 1898 Map of Karquines
1898 Karquines1898 Print · USGSThe Karquines Strait and Suisun Bay served as a bustling maritime and rail crossroads in the late nineteenth century. Researchers can trace the early layouts of Benicia, Vallejo, and Martinez, or locate vanished landmarks like Seal Bluff Landing and the U.S. Arsenal. - 1901 Map of Karquines
1901 Karquines1901 Print · USGSNorthern California at the dawn of the twentieth century shows a landscape defined by the deep-water Karquines Strait and industrial rail hubs. Researchers can trace the waterfront activity of Benicia, Vallejo, and Martinez or the tidal marsh outposts at Drawbridge and Rush Landing.6 unique versions available - 1902 Map of Napa
1902 Napa1902 Print · USGSThe Napa Valley and Carquinez Strait are captured at the turn of the century, showing a landscape defined by maritime military posts and early vineyards. Genealogists and historians can trace the Mare Island Navy Yard, the Insane Asylum, and rail stops at Zinfandel and Rutherford.6 unique versions available - 1916 Map of Mare Island
1916 Mare Island1916 Print · USGSThe northern San Pablo Bay region comes alive in this survey, showcasing a landscape of tidal marshes and rail-driven growth during the mid-1910s. Researchers can trace the layout of the Mare Island Navy Yard, the remote rail stop at Wingo, and the rural classrooms of Fly School.4 unique versions available - 1916 Map of Santa Rosa
1916 Santa Rosa1916 Print · USGSSonoma County in the mid-1910s is a landscape of established rail towns and historic land grants. Researchers can trace early infrastructure through sites like the Sonoma State Home, Adobe Fort, and rural landmarks such as Grangers Hall or the Winery.3 unique versions available - 1921 Map of Mt. Vaca
1921 Mt. Vaca1921 Print · USGSFairfield and the surrounding highlands appear at a pivotal moment in the 1920s as early transportation networks began to define the region. Genealogists and historians can trace the early layout of Fairfield and locate remote settlements like Manka and Atlas. - 1924 Map of Capay
1924 Capay1924 Print · USGSYolo County during the mid-1910s reveals a landscape of early irrigation and rail-dependent settlements. Researchers can trace the Southern Pacific line through Capay and Esparto or locate now-submerged sites like Monticello and the Scribner's Estate. - 1927 Map of Calistoga
1927 Calistoga1927 Print · USGSUpper Napa Valley and the surrounding peaks come alive in this 1920s tactical survey. Genealogists and researchers can trace the early mercury industry at the Oat Hill Mine, locate family roots near Langstry Ranch, or follow the old Southern Pacific line through Larkmead and Bale.2 unique versions available - 1940 Map of Carquinez Strait, 1963 Print
1940 Carquinez Strait1963 Print · USGSThe industrial waterfronts of Solano and Contra Costa counties are captured here just before the mid-century boom. Genealogists and historians can trace the rail-and-water networks of Port Costa, Benicia, and Vallejo, or locate landmarks like the Carquinez Cem and the Benicia Auto Ferry.2 unique versions available - 1942 Map of Mare Island
1942 Mare Island1942 Print · USGSThe northern reaches of San Pablo Bay come alive in this wartime survey, showing a landscape of vital naval yards and marshland agriculture. Genealogists and historians can trace rail depots like Napa Junction, rural landmarks like American Canyon School, and the industrial waterfronts of Vallejo and Oleum. - 1942 Map of Carquinez
1942 Carquinez1942 Print · USGSThe industrial waterfront of the Carquinez Strait is captured here during the early years of the war. Researchers can trace the complex rail networks of the Southern Pacific and locate established neighborhoods in Vallejo, Benicia, and Crockett. - 1942 Map of Sonoma
1942 Sonoma1942 Print · USGSThe Napa and Sonoma valleys are captured here during the early 1940s, showing the established rail and agricultural networks of the North Bay. Researchers can trace historic landmarks like the Veterans Home, the Quick Silver Mine, and early vineyard sites at Zinfandel and Rutherford. - 1942 Map of Mt. Vaca
1942 Mt. Vaca1942 Print · USGSThe Vaca Mountains and eastern Napa County are captured during the early 1940s, showing a landscape of deep canyons and rising valley towns. Researchers can trace the rail corridors of the Southern Pacific near Fairfield or locate early water works like the Gordon Valley Dam.2 unique versions available - 1942 Map of St. Helena, 1966 Print
1942 St. Helena1966 Print · USGSNapa County during the early 1940s is defined by its rural school districts and the emerging institutional centers of the Howell Mountain area. Genealogists can trace family footprints through the Silverado Trail, the Aetna Mine, and small schools like Hardin Sch. - 1943 Map of Morgan Valley
1943 Morgan Valley1943 Print · USGSNorthern California ranching and mining country are captured in the early 1940s at the junction of Lake, Napa, and Yolo counties. Researchers can locate the Morgan Valley Sch and several mines like the Harrison Mine and Red Elephant Mine. - 1943 Map of Capay, 1945 Print
1943 Capay1945 Print · USGSYolo and Napa counties are captured here in the mid-1940s, documenting the valley floor and ridge-lines before the creation of Lake Berryessa. Researchers can trace family ranch lands and lost school sites like Monticello, Oak Grove Sch, and Gunn Ranch. - 1943 Map of Calistoga, 1955 Print
1943 Calistoga1955 Print · USGSUpper Napa Valley and the rugged Lake County border are captured here during the 1940s, a period defined by mercury mining and early tourism. Researchers can trace family-named landmarks and industrial sites like the Oat Hill Mine, Mark West Springs, and the Petrified Forest. - 1944 Map of Santa Rosa
1944 Santa Rosa1944 Print · USGSSonoma County transitions from its early land-grant heritage to a mid-century agricultural hub in the years following the 1942 revision. Genealogists and researchers can locate numerous country schools and family-linked landmarks like Sonoma State Home, Adobe Fort, and Grange Hall.2 unique versions available - 1944 Map of Morgan Valley
1944 Morgan Valley1944 Print · USGSUpper California ranching and mercury mining country are shown here in the mid-1940s near the corner of Lake, Colusa, and Napa counties. Researchers can trace historic operations like Reid Mine, the old Morgan Valley Sch, and local hubs like Knoxville.2 unique versions available - 1945 Map of Capay
1945 Capay1945 Print · USGSThe Berryessa and Capay valleys appear here in the final years before the creation of Lake Berryessa, documenting a lost agricultural landscape. Genealogists can trace family ranch holdings like Scott Ranch and Corbin Ranch alongside rural landmarks like Monticello and Apricot Sch. - 1945 Map of Calistoga
1945 Calistoga1945 Print · USGSCalistoga and the surrounding tri-county ridges are documented here during the mid-forties, capturing a landscape defined by mercury and silver mining. Researchers can trace the Southern Pacific RR and locate rural landmarks like the Silverado Mine or Mark West Springs.2 unique versions available - 1945 Map of Rumsey
1945 Rumsey1945 Print · USGSThe Capay Valley and northern Sacramento Valley meet here in the mid-1940s, showing a landscape of secluded canyons and rail-side settlements. Genealogists can trace family footprints near Rumsey, Guinda, and rural schoolhouses like Wildwood Sch.2 unique versions available - 1945 Map of St. Helena
1945 St. Helena1945 Print · USGSNapa County at the end of the war shows a landscape of growing valley towns, mountain colleges, and rural mining outposts. Researchers can trace the path of the Southern Pacific RR or locate family roots near Central Sch and the Aetna Mine.2 unique versions available - 1947 Map of Santa Rosa
1947 Santa Rosa1947 Print · USGSNorthern California in the late 1940s was a landscape of agricultural valleys and vital rail hubs. Trace the historic routes of the Northwestern Pacific through Healdsburg or explore the mid-century waterfronts of Vallejo and Benicia near Mare Island.
Showing maps 1-25 of 180
Top cities of Napa County
- Napa historical maps
- American Canyon historical maps
- Calistoga historical maps
- Yountville historical maps
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