| | Austin city (part) | 4805000 | Williamson County 48491 | TX | Austin-Round Rock-San
Marcos, TX 12420 | | Y | https://maps.google.com/?q=Austincity+TX |
| | Bartlett city (part) | 4805732 | Williamson County 48491 | TX | Austin-Round Rock-San
Marcos, TX 12420 | | | https://maps.google.com/?q=Bartlettcity+TX |
| | Cedar Park city (part) | 4813552 | Williamson County 48491 | TX | Austin-Round Rock-San
Marcos, TX 12420 | | | https://maps.google.com/?q=CedarParkcity+TX |
| | Florence city | 4826136 | Williamson County 48491 | TX | Austin-Round Rock-San
Marcos, TX 12420 | | | https://maps.google.com/?q=Florencecity+TX |
| | Georgetown city | 4829336 | Williamson County 48491 | TX | Austin-Round Rock-San
Marcos, TX 12420 | | Y | https://maps.google.com/?q=Georgetowncity+TX |
| | Granger city | 4830548 | Williamson County 48491 | TX | Austin-Round Rock-San
Marcos, TX 12420 | | | https://maps.google.com/?q=Grangercity+TX |
| | Hutto city | 4835624 | Williamson County 48491 | TX | Austin-Round Rock-San
Marcos, TX 12420 | | | https://maps.google.com/?q=Huttocity+TX |
| | Jarrell city | 4837396 | Williamson County 48491 | TX | Austin-Round Rock-San
Marcos, TX 12420 | | | https://maps.google.com/?q=Jarrellcity+TX |
| | Leander city (part) | 4842016 | Williamson County 48491 | TX | Austin-Round Rock-San
Marcos, TX 12420 | | | https://maps.google.com/?q=Leandercity+TX |
| | Liberty Hill city | 4842664 | Williamson County 48491 | TX | Austin-Round Rock-San
Marcos, TX 12420 | | | https://maps.google.com/?q=LibertyHillcity+TX |