Round Rock has the most cases: 17 out of 55. View all zip codes in TN or use the free zip code lookup. ZIP Codes in Williamson County TN. 78628 Andice: 512/737: Williamson County: Texas (TX) 78717 Austin: 512/737: Williamson County: Texas (TX) 78729 Austin: 512/737: Williamson County: 37025. Here is a look at testing and case rates for the Mid-Cumberland Region (last updated Oct 21): 21-Day testing rate (PCR tests performed per 100 persons by zip code) 21-Day Case Rate (confirmed and probable cases per 100,000 persons by ZIP) Test Rate by Region and County; Positive Test Rate by Region and County; Maps are updated weekly on Wednesdays. 37046; 38476; 37062; 37064; 37067; 37069; 37174; 37179; Cities related to Williamson County TN. On this site you will find information on all USA Zip codes and many tools to calculate distance between zip codes, shipping costs, zip codes radiuses etc. This page shows a Google Map with an overlay of Zip Codes for Williamson County in the state of Tennessee. Box Brentwood 0 615/629 ZIP Code 37027 General Brentwood 49,035 615/629 ZIP Code â¦ Tennessee ZIP code map and Tennessee ZIP code list. Zip codes for the Williamson County-Tennessee metropolitan area (as defined by the United States Census Bureau). ZIP Code search by County, State. Find homes in popular Williamson County TN zip codes or search by region, city or neighborhood. Users can easily view the boundaries of each Zip Code and the state as a whole. Unlike Travis County, officials in Williamson County break the cases down by city, not ZIP code. ELIGIBLE ZIP CODES served by The Salvation Army in Williamson County 78613, 78630, 78726, 78615, 78641, 78646, 78642, 78660, 78691, 76574, 76577, 76578, 78621 78664 (Pflugerville Only) 78729, 78750 If you live within the city limits of Austin and in Williamson County, please contact the City of Austin at www.austintexas.gov for financial assistance in your area. Williamson County, TN - PO Box ZIP Codes (NO DEMOGRAPHIC DATA) 37024 | 37065 | 37068 Note: Every ZIP Code has a single ACTUAL City Name assigned by the US Postal Service (USPS). Zip codes for the Williamson County-Texas metropolitan area (as defined by the United States Census Bureau). WILLIAMSON County, TN Covers 13 ZIP Codes. List of zip codes for Williamson County Texas. 37026. Share: ... Williamson County Area Code 615. 37046 Allisona: 615: Williamson County: Tennessee (TN) 37014 Arrington: 615: Williamson Countyâ¦ All Williamson county zip codes, area codes, list of counties, cities and maps. Display Williamson County Border on Map Share: Williamson County Profile. Georgetown is second with 10 cases. ZIP Code Classification City Population Area Code (s) ZIP Code 37014 General Arrington 1,855 615/629 ZIP Code 37024 P.O. Brentwood Real Estate ; Spring Hill Real Estate ; Standard Bon Aqua Hickman County Area Code 615. Map of Zipcodes in Williamson County. Sort by: Zip Code | City Name Williamson County-Tennessee Postal Codes. Enter a county name and state (for example: Davidson, TN), and this will return the associated ZIP Codes for the countyâ¦ Zip Codes in Williamson County, Tennessee. Search. County Name: Williamson County: FIPS Code: 47187: Population: 183182: Unemployment Rate: 3.6%: Current Time: CST: Time Zone: Central Standard Time: Sort by: Zip Code | City Name Williamson County-Texas Postal Codes.