Note: Every ZIP Code has a single ACTUAL City Name assigned by the US Postal Service (USPS).
See the specific ZIP Code for acceptable Alternate City Names and spelling variations.
ZIP Codes in Williamson County Address Data
Businesses Addresses: 23,457
PO Box Addresses: 9,185
Residential Addresses: 408,682
Multi-Family Addresses: 91,904
Single Family Addresses: 312,587
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Map of Williamson County, TX ZIP Codes With Actual (Default) City Names