Round Rock, TX Area Codes
Round Rock is served by area codes 512 and 737. It is in Texas, Williamson County. About 184,922 people live in its 6 ZIP codes.
| Field | Value |
|---|---|
| Area code(s) | 512, 737 |
| State / province | Texas |
| County | Williamson County |
| Population | 184,922 |
| ZIP codes | 6 |
| Time zone | Central |
| Coordinates | 30.5944, -97.6347 |
What area code is Round Rock in?
ZIP codes in the code footprint
78664, 78665, 78680, 78681, 78682, 78683
Nearby towns and their area codes
Hutto 512, 737Georgetown 512, 737Pflugerville 512, 737Cedar Park 512, 737Taylor 512, 737Jarrell 512, 737Leander 512, 737Manor 512, 737
How to dial
Dial 512 + 7 digits for a number in Round Rock, or +1 512 ... from abroad. Ten-digit dialling is required everywhere in the North American Numbering Plan.