County ZIP codes · Tennessee · FIPS 47061
Grundy County, TN ZIP Codes
Grundy County, Tennessee has 10 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 7 of the residential ones lie mainly in Grundy County and 3 mainly in a neighboring county; 5 cross the county line. Median household income ranges from $43,218 in 37313 (Coalmont) to $59,268 in 37357 (Morrison) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Grundy 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 $49,063 and $54,907.
They carry 10 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 10 residential ZIP codes in Grundy County
7 ZIP codes lie mainly in Grundy County; 3 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 37387 | Tracy City | 3,674 | 50 | $47k | $164k | 69% |
| 37365 | Palmer | 1,678 | 30 | $55k | $131k | 71% |
| 37313 | Coalmont | 1,590 | 78 | $43k | $162k | 100% |
| 37301 | Altamont | 1,528 | 25 | $35k | $133k | 100% |
| 37339 | Gruetli Laager | 1,319 | 33 | $49k | $148k | 100% |
| 37366 | Pelham | 1,216 | 23 | $59k | $189k | 100% |
| 37305 | Beersheba Springs | 1,019 | 62 | $61k | $69k | 100% |
Partly in Grundy 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?
5 ZIP codes of Grundy County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Grundy | Elsewhere |
|---|---|---|
| 37110 | 15% | Warren County 79%; Van Buren County 3%; Cannon County 2%; Sequatchie County 2% |
| 37357 | 10% | Warren County 54%; Coffee County 29%; Cannon County 7% |
| 37387 | 69% | Marion County 31% |
| 37356 | 43% | Marion County 56%; Franklin County 1% |
| 37365 | 71% | Sequatchie County 29% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
Which first three digits do Grundy County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Grundy County's ZIP codes use 2 prefixes: 371 and 373.
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.