County ZIP codes · Tennessee · FIPS 47165
Sumner County, TN ZIP Codes
Sumner County, Tennessee has 11 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 9 residential and 2 for PO boxes or a single organization. 7 of the residential ones lie mainly in Sumner County and 2 mainly in a neighboring county; 7 cross the county line. Median household income ranges from $59,545 in 37186 (Westmoreland) to $101,850 in 37075 (Hendersonville) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Sumner County?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
How different are its ZIP codes?
The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $78,123 and $98,114.
They carry 9 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 9 residential ZIP codes in Sumner County
7 ZIP codes lie mainly in Sumner County; 2 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 37075 | Hendersonville | 73,522 | 1,245 | $102k | $441k | 100% |
| 37066 | Gallatin | 64,650 | 556 | $82k | $405k | 100% |
| 37148 | Portland | 26,274 | 199 | $82k | $295k | 85% |
| 37186 | Westmoreland | 10,709 | 99 | $60k | $222k | 54% |
| 37048 | Cottontown | 6,380 | 137 | $100k | $434k | 96% |
| 37022 | Bethpage | 5,728 | 66 | $79k | $288k | 85% |
| 37031 | Castalian Springs | 3,926 | 103 | $98k | $353k | 78% |
Partly in Sumner County
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).
Which ZIP codes cross the county line?
7 ZIP codes of Sumner County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Sumner | Elsewhere |
|---|---|---|
| 37072 | 34% | Davidson County 51%; Robertson County 15% |
| 37148 | 85% | Robertson County 15% |
| 37188 | 27% | Robertson County 73% |
| 37186 | 54% | Macon County 46% |
| 37048 | 96% | Robertson County 4% |
| 37022 | 85% | Trousdale County 13%; Macon County 2% |
| 37031 | 78% | Trousdale County 22% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
PO Box and single-organization ZIP codes
| ZIP | Postal name |
|---|---|
| 37077 | Hendersonville |
| 37119 | Mitchellville |
Source: GeoNames postal codes (CC BY 4.0).
Which first three digits do Sumner County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Sumner County's ZIP codes use 2 prefixes: 370 and 371.
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.