ZIP Code 78680
Round Rock, Texas · Williamson County
No34790
Zip78680
TypePO BOX
Decommissioned0
Primary CityRound Rock
Acceptable Cities—
Unacceptable Cities—
StateTX
LstateTexas
CountyWilliamson County
TimezoneAmerica/Chicago
Area Codes512
World RegionNA
CountryUS
Latitude30,51
Longitude-97,67