Distance between San Marcos and Union City
Distance from San Marcos, CA to Union City, CA is 411 miles / 662 kilometers.
Map showing the distance from San Marcos to Union City
 |
Air distance: | miles km |
San Marcos, CA
| City: | San Marcos, CA |
| Country: | United States |
Union City, CA
| City: | Union City, CA |
| Country: | United States |
Time difference between San Marcos and Union City
There is no time difference between San Marcos and Union City. Current local time in San Marcos and Union City is 17:09 PST (2025-03-02)