Williamson County, TN ZIP codes
Williamson County ZIP codes by town
Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.
Map of Williamson County ZIP codes
The ZIP codes of Williamson County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Williamson County in numbers
About 260,351 people live in Williamson County, in 92,214 households, the 6th most populous of Tennessee's 95 counties. The median household income is $135,594 a year, 95% above the Tennessee median of $69,595 (US: $80,734). The median owner-occupied home is valued at $751,900 (2.6 times the Tennessee median), and median gross rent is $1,969 a month. The median age is 40.4; 62.7% of adults 25 and over hold a bachelor's degree or higher (31.1% across Tennessee); the average commute takes 28 minutes.
| Population | 260,351 |
|---|---|
| Households | 92,214 |
| Median age | 40.4 |
| Median household income | $135,594 |
| Median home value | $751,900 |
| Median gross rent | $1,969 |
| Bachelor's degree or higher | 62.7% |
| Mean commute | 27.9 min |
| Population density | 447 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.
Largest towns in Williamson County
| Town | ZIP codes | Population |
|---|---|---|
| Franklin | 5 | 87,133 |
| Brentwood | 2 | 45,556 |
| Thompsons Station | 1 | 18,043 |
| Nolensville | 1 | 15,074 |
| Fairview | 1 | 10,009 |
| College Grove | 1 | 7,310 |
| Arrington | 1 | 3,227 |
| Primm Springs | 1 | 1,228 |
Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.
Neighbouring counties
Counties that share a ZIP code with Williamson County.
- Davidson County (49)
- Rutherford County (17)
- Maury County (7)
- Dickson County (8)
- Bedford County (7)
- Cheatham County (4)
- Marshall County (4)
- Hickman County (6)
Not sure you are in Williamson County? What county am I in? answers from your location, near a county line included.
Every ZIP code in Williamson County, with figures
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
37014 | Arrington , TN | Standard | 3,227 | $105,125 | $739,500 |
37024 | Brentwood , TN | No street area | — | — | — |
37027 | Brentwood , TN | Standard | 61,630 | $154,578 | $931,700 |
37046 | College Grove , TN | Standard | 7,310 | $178,228 | $979,900 |
37062 | Fairview , TN | Standard | 13,851 | $91,750 | $379,600 |
37064 | Franklin , TN | Standard | 67,513 | $127,771 | $735,100 |
37065 | Franklin , TN | No street area | — | — | — |
37067 | Franklin , TN | Standard | 31,556 | $111,759 | $756,300 |
37068 | Franklin , TN | No street area | — | — | — |
37069 | Franklin , TN | Standard | 20,209 | $157,939 | $815,600 |
37135 | Nolensville , TN | Standard | 24,409 | $148,819 | $672,600 |
37179 | Thompsons Station , TN | Standard | 18,043 | $136,188 | $570,200 |
38476 | Primm Springs , TN | Standard | 1,228 | $83,654 | $574,000 |
Cite this page
zipcodes.pro. “Williamson County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/tn/county/williamson
Underlying data is public domain or openly licensed — sources, vintages and licences.