1940s Maps of San Juan
Explore 13 historic maps of San Juan from the 1940s. These maps offer a rare glimpse into what life looked like during the 1940s — 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 Juan's landscape evolved across the 1940s, 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 1940s, 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 Juan's history through authentic maps from the 1940s. This is your window into the past.
San Juan maps
(13)- 1940 Map of Carolina
1940 Carolina1940 Print · USGSNortheast Puerto Rico is shown here just before the era of rapid modernization, when sugar production dominated the coastal plains. Researchers can trace the layout of agricultural colonies like Colonia Monserrate and historic centers such as Loiza Aldea and Central Victoria. - 1941 Map of Bayamon
1941 Bayamon1941 Print · USGSBayamón and the northern coast of Puerto Rico appear here in the early 1940s as a landscape of sugar centrales and rail lines. Genealogists and historians can trace family locations through numerous named colonias and landmarks like Central Juanita, Colonia La Monserrate, and Iglesia Cristo Rey.2 unique versions available - 1941 Map of San Juan
1941 San Juan1941 Print · USGSSan Juan and its surrounding municipios are captured here in the early 1940s, showing the capital's expansion before the post-war industrial boom. Researchers can trace the layout of early suburbs like Hato Rey, locate landmarks like the Universidad de Puerto Rico, or study the historic fortifications at Morro Castle.2 unique versions available - 1941 Map of Carolina
1941 Carolina1941 Print · USGSCoastal Puerto Rico at the start of the 1940s shows a landscape of sugar centrales and traditional settlements along the Atlantic. Researchers can trace family ties at Loiza Aldea, locate the rail spurs of Central Victoria, or explore the limits of the Bosque Insular de Piñones. - 1946 Map of Aguas Buenas
1946 Aguas Buenas1946 Print · USGSAguas Buenas and the surrounding central highlands appear here in the mid-forties, showing the intricate network of mountain roads and rural settlements. Genealogists and historians can locate specific landmarks like the Leprocomio, Pueblo Seco, and several local Escuela Segunda Unidad schools.3 unique versions available - 1947 Map of Carolina
1947 Carolina1947 Print · USGSNortheast Puerto Rico is documented here in the late 1940s as a landscape of coastal lagoons and thriving sugar centrals. Genealogists can trace family roots through numerous worker settlements like Poblado Sabana Abajo, Colonia Las Delicias, and Loíza Aldea.3 unique versions available - 1947 Map of Aguas Buenas NO
1947 Aguas Buenas NO1947 Print · USGSThe mountainous interior of Puerto Rico is captured here in the late 1940s, showing the early footprints of development around Guaynabo. Researchers can trace the layout of rural schools like the Escuela Segunda Unidad de Caimito or locate historical settlements like La Muda and La Esperanza. - 1947 Map of Bayamon
1947 Bayamon1947 Print · USGSBayamon and the San Juan coastline are seen here in the late 1930s as a landscape of sugar central mills and coastal colonies. Researchers can trace the American RR line to Central Juanita or locate old community anchors like Pueblo Viejo and El Cañuelo.4 unique versions available - 1947 Map of Aguas Buenas NE
1947 Aguas Buenas NE1947 Print · USGSPuerto Rico's interior highlands near Trujillo Alto are captured here in the late 1940s as a landscape of rural settlements and winding rivers. Researchers can locate specific structures in Pueblo Seco and trace the paths of the Río Grande de Loíza or the grounds of the Leprocomio. - 1947 Map of Aguas Buenas SE
1947 Aguas Buenas SE1947 Print · USGSCaguas and the surrounding river valleys are captured in the late 1940s as the regional landscape balanced traditional agriculture with emerging infrastructure. Researchers can trace rural school locations like Escuela Segunda Unidad de Rio Canas and the courses of the Rio Grande de Loiza and Rio Bairoa. - 1947 Map of Aguas Buenas SO
1947 Aguas Buenas SO1947 Print · USGSAguas Buenas and the surrounding highlands are captured here in the late 1940s, showing the town and its rural outskirts before modern development. Genealogists and hikers can trace old routes near La Changa or follow the waters of Rio Bairoa and Rio Caguitas. - 1947 Map of San Juan
1947 San Juan1947 Print · USGSSan Juan is captured in the mid-forties as it expands from the historic islet toward the inland hills and the university grounds. Genealogists and historians can trace early neighborhoods like Barriada Eleanor Roosevelt and landmarks such as Las Ruinas de Caparra and the American Railroad.3 unique versions available - 1949 Map of San Juan, 1952 Print
1949 San Juan1952 Print · USGSSan Juan and its surrounding barrios were undergoing significant expansion during the late 1940s as urbanization pushed south and east from the old city. Genealogists and historians can trace institutional landmarks like the Universidad de Puerto Rico, the historic walls of Fort Brook, and neighborhood developments in Barriada Eleanor Roosevelt.2 unique versions available
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