# T-Mobile Coverage in San Marcos, CA 92078

Yes — T-Mobile is well-served in San Marcos, CA 92078.

## Summary

- **Carrier**: T-Mobile (on the T-Mobile network)
- **Location**: San Marcos, CA 92078
- **Verdict**: STRONG (strong)
- **Towers on network**: 89
- **Best signal (dBm)**: -46.9
- **Nearest tower**: 0.49 mi
- **Low-band sites**: 0
- **Mid-band sites**: 66
- **High-band sites**: 25

## Coordinates

- **Latitude**: 33.11834
- **Longitude**: -117.18554

## Competitor Networks at This Location

- **Verizon** (Verizon): 43 towers, verdict STRONG (strong), best -23.0 dBm
- **AT&T** (AT&T): 2 towers, verdict WEAK (weak), best -66.5 dBm

## T-Mobile Coverage in Nearby Cities

- [Santa Ana, CA](/coverage/t-mobile/near/city-state/santa-ana/ca) — 1,050 towers
- [Garden Grove, CA](/coverage/t-mobile/near/city-state/garden-grove/ca) — 1,011 towers
- [Universal City, CA](/coverage/t-mobile/near/city-state/universal-city/ca) — 993 towers
- [North Hollywood, CA](/coverage/t-mobile/near/city-state/north-hollywood/ca) — 981 towers
- [Los Angeles, CA](/coverage/t-mobile/near/city-state/los-angeles/ca) — 943 towers
- [Valley Village, CA](/coverage/t-mobile/near/city-state/valley-village/ca) — 924 towers

## Related Links

- **View on Map**: https://www.celltowermaps.com/coverage/t-mobile/near/zip-code/92078
- **All carriers at this zip**: https://www.celltowermaps.com/cell-towers/near/zip-code/92078

## Data Source

Tower data sourced from FCC licensing records and OpenCellID. For more information, visit https://www.celltowermaps.com/llms.txt