Cities near Castro Valley
Castro Valley is at (37.6941°, -122.0863°). Showing cities within the selected radius, sorted by distance.
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Nearby cities 119 cities found
| City | Country | Distance | Population |
|---|---|---|---|
| Cherryland | United States | 2.2 km | 14,728 |
| Ashland | United States | 2.4 km | 21,925 |
| Hayward | United States | 2.9 km | 158,289 |
| Fairview | United States | 4.0 km | 10,003 |
| San Lorenzo | United States | 4.7 km | 23,452 |
| San Leandro | United States | 7.0 km | 90,712 |
| Union City | United States | 12.4 km | 74,494 |
| Dublin | United States | 13.3 km | 57,721 |
| San Ramon | United States | 13.5 km | 76,134 |
| Danville | United States | 16.1 km | 44,400 |
| Moraga | United States | 16.1 km | 17,256 |
| Alameda | United States | 17.6 km | 78,630 |
| Alamo | United States | 18.0 km | 14,570 |
| Fremont | United States | 18.4 km | 232,206 |
| Newark | United States | 18.7 km | 45,336 |
| Pleasanton | United States | 19.0 km | 79,510 |
| Piedmont | United States | 19.3 km | 11,376 |
| Oakland | United States | 20.3 km | 419,267 |
| Lafayette | United States | 21.5 km | 25,843 |
| Orinda | United States | 21.9 km | 19,279 |
| Foster City | United States | 22.2 km | 33,477 |
| Redwood Shores | United States | 23.0 km | 10,500 |
| Emeryville | United States | 23.2 km | 11,694 |
| Walnut Creek | United States | 23.7 km | 68,910 |
| East Palo Alto | United States | 25.5 km | 29,662 |
| Belmont | United States | 25.5 km | 27,218 |
| San Mateo | United States | 25.6 km | 103,536 |
| Berkeley | United States | 25.6 km | 120,972 |
| San Carlos | United States | 25.8 km | 29,931 |
| Bayview-Hunters Point | United States | 26.2 km | 34,835 |
| North Fair Oaks | United States | 26.3 km | 14,687 |
| Redwood City | United States | 26.7 km | 85,288 |
| Burlingame | United States | 27.5 km | 30,459 |
| Menlo Park | United States | 28.0 km | 33,449 |
| Livermore | United States | 28.0 km | 88,126 |
| Visitacion Valley | United States | 28.1 km | 22,534 |
| Pleasant Hill | United States | 28.3 km | 34,810 |
| Albany | United States | 28.4 km | 19,735 |
| Palo Alto | United States | 28.5 km | 66,853 |
| Millbrae | United States | 28.5 km | 22,795 |
| South San Francisco | United States | 28.6 km | 67,271 |
| Hillsborough | United States | 29.1 km | 11,451 |
| San Bruno | United States | 29.4 km | 43,185 |
| Mission District | United States | 30.2 km | 47,234 |
| Chinatown | United States | 30.5 km | 100,574 |
| Clayton | United States | 30.5 km | 11,867 |
| San Francisco | United States | 30.6 km | 827,526 |
| Stanford | United States | 30.8 km | 13,809 |
| Noe Valley | United States | 31.2 km | 22,893 |
| El Cerrito | United States | 31.6 km | 23,549 |
| Concord | United States | 31.9 km | 128,667 |
| Daly City | United States | 33.1 km | 106,562 |
| Milpitas | United States | 33.5 km | 77,604 |
| Mountain View | United States | 34.3 km | 80,435 |
| Los Altos | United States | 34.4 km | 30,671 |
| Richmond | United States | 35.3 km | 109,708 |
| Parkside | United States | 35.6 km | 16,874 |
| Sunnyvale | United States | 36.4 km | 155,805 |
| Pacifica | United States | 36.4 km | 39,260 |
| El Sobrante | United States | 36.4 km | 12,669 |
| Martinez | United States | 36.4 km | 38,137 |
| San Pablo | United States | 37.5 km | 30,407 |
| Bay Point | United States | 38.8 km | 21,534 |
| Pinole | United States | 39.2 km | 19,269 |
| Santa Clara | United States | 39.5 km | 126,215 |
| Half Moon Bay | United States | 39.6 km | 12,657 |
| Benicia | United States | 40.0 km | 28,167 |
| Hercules | United States | 40.1 km | 25,314 |
| Pittsburg | United States | 41.1 km | 69,424 |
| Cupertino | United States | 41.5 km | 60,572 |
| Antioch | United States | 42.4 km | 110,542 |
| San Jose | United States | 42.9 km | 997,368 |
| Alum Rock | United States | 43.0 km | 15,536 |
| Brentwood | United States | 43.3 km | 58,968 |
| Tamalpais-Homestead Valley | United States | 44.5 km | 10,735 |
| Mill Valley | United States | 46.7 km | 14,394 |
| Campbell | United States | 46.8 km | 41,117 |
| Oakley | United States | 47.1 km | 39,813 |
| Larkspur | United States | 47.6 km | 12,417 |
| Vallejo | United States | 48.0 km | 121,692 |
| Saratoga | United States | 48.2 km | 30,968 |
| Discovery Bay | United States | 48.9 km | 13,352 |
| Communications Hill | United States | 49.5 km | 11,267 |
| San Rafael | United States | 49.9 km | 59,162 |
| San Anselmo | United States | 52.1 km | 12,653 |
| Los Gatos | United States | 52.9 km | 30,705 |
| American Canyon | United States | 55.6 km | 20,554 |
| Tracy | United States | 58.3 km | 87,075 |
| Suisun | United States | 60.6 km | 28,111 |
| Fairfield | United States | 61.9 km | 112,970 |
| Novato | United States | 62.5 km | 55,530 |
| Napa | United States | 69.3 km | 80,434 |
| Scotts Valley | United States | 71.8 km | 11,945 |
| Lathrop | United States | 72.6 km | 20,866 |
| Morgan Hill | United States | 73.4 km | 42,948 |
| Sonoma | United States | 74.0 km | 11,037 |
| Vacaville | United States | 74.2 km | 96,803 |
| Stockton | United States | 75.8 km | 305,658 |
| Petaluma | United States | 76.9 km | 60,438 |
| Manteca | United States | 77.4 km | 75,448 |
| Agua Caliente | United States | 78.4 km | 27,090 |
| Live Oak | United States | 79.6 km | 17,158 |
| Santa Cruz | United States | 80.2 km | 64,220 |
| Capitola | United States | 80.8 km | 10,189 |
| Garden Acres | United States | 81.0 km | 10,648 |
| Ripon | United States | 84.8 km | 15,151 |
| Lodi | United States | 86.3 km | 64,596 |
| Dixon | United States | 86.7 km | 19,390 |
| Patterson | United States | 87.9 km | 21,498 |
| Salida | United States | 88.1 km | 13,722 |
| Gilroy | United States | 89.2 km | 53,231 |
| Rohnert Park | United States | 89.7 km | 42,407 |
| Watsonville | United States | 91.9 km | 53,628 |
| Galt | United States | 92.9 km | 25,303 |
| Modesto | United States | 96.1 km | 211,266 |
| Davis | United States | 99.3 km | 67,666 |
| Laguna | United States | 99.5 km | 46,621 |
| Santa Rosa | United States | 99.6 km | 178,127 |
| Ceres | United States | 100.0 km | 47,963 |
What is this tool?
The Cities Near tool lets you explore all populated places within a chosen radius of any city in the world. Enter a city, pick a radius (50, 100, 200, or 500 km), and get an instant interactive map and ranked list — sorted from closest to farthest.
This is useful for trip planning, geography research, or simply satisfying your curiosity about what lies around a given city. The underlying dataset comes from GeoNames and covers 70,000+ populated places worldwide.
How does the distance calculation work?
Distances are calculated using the Haversine formula, which gives the great-circle distance between two points on a sphere — the shortest path over the Earth's surface. The result is accurate to within a few kilometres for most city pairs. Note that the Haversine formula assumes a perfectly spherical Earth; the true Earth is slightly flattened, so very long distances may differ by up to 0.5% from the exact geodetic distance.
Cities near famous places
- Within 100 km of Paris: Versailles, Chartres, Reims, Rouen — all classic day-trip destinations.
- Within 200 km of Tokyo: Yokohama, Kawasaki, Sagamihara, Chiba, Shizuoka — the vast Kantō metropolitan area.
- Within 500 km of Istanbul: Ankara, Bursa, Thessaloniki, Sofia, Izmir — crossing into three countries.
Frequently Asked Questions
What is the maximum radius I can search?
The tool offers radii of 50, 100, 200, and 500 km. For reference, a 500 km radius around Paris would cover most of France plus parts of Belgium, Germany, and Switzerland. Use the minimum population filter to narrow down the results to cities of the size you care about.
How is distance measured — straight line or road distance?
The distance shown is the straight-line great-circle distance (as the crow flies), not the road distance. Road distances are always longer due to routes, terrain, and urban layouts. This tool is intended for geographic exploration, not navigation.
What data source is used?
City data comes from the GeoNames geographical database, which aggregates official government sources worldwide. It includes name, coordinates, population, country, and timezone for over 70,000 populated places. Coordinates are accurate to 4–6 decimal places.