County ZIP codes · Tennessee · FIPS 47125
Montgomery County, TN ZIP Codes
Montgomery County, Tennessee has 15 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 13 residential and 2 for PO boxes or a single organization. 8 of the residential ones lie mainly in Montgomery County and 5 mainly in a neighboring county; 8 cross the county line. Median household income ranges from $56,927 in 37050 (Cumberland City) to $118,179 in 37010 (Adams) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Montgomery 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 $67,745 and $86,804.
They carry 11 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 13 residential ZIP codes in Montgomery County
8 ZIP codes lie mainly in Montgomery County; 5 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 37042 | Clarksville | 87,652 | 1,541 | $70k | $247k | 100% |
| 37040 | Clarksville | 64,977 | 700 | $68k | $270k | 100% |
| 37043 | Clarksville | 58,742 | 542 | $95k | $357k | 98% |
| 42223 | Fort Campbell | 19,006 | 875 | $62k | $268k | 55% |
| 37191 | Woodlawn | 3,860 | 84 | $92k | $271k | 100% |
| 37052 | Cunningham | 1,659 | 48 | $69k | $224k | 98% |
| 37142 | Palmyra | 1,506 | 40 | $59k | $267k | 100% |
| 37171 | Southside | 1,402 | 59 | $118k | – | 100% |
Partly in Montgomery County
| In this county | ||||||
|---|---|---|---|---|---|---|
| 37010 | Adams | 5,435 | 69 | $118k | $425k | 39% |
| 37051 | Cumberland Furnace | 3,765 | 47 | $70k | $343k | 24% |
| 37050 | Cumberland City | 1,815 | 34 | $57k | $210k | 22% |
| 37079 | Indian Mound | 2,960 | 38 | $87k | $246k | 20% |
| 37015 | Ashland City | 18,988 | 122 | $79k | $300k | 1% |
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?
8 ZIP codes of Montgomery County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Montgomery | Elsewhere |
|---|---|---|
| 37043 | 98% | Cheatham County 2% |
| 42223 | 55% | Christian County 45% |
| 37015 | 1% | Cheatham County 93%; Davidson County 6% |
| 37010 | 39% | Robertson County 61% |
| 37051 | 24% | Dickson County 72%; Houston County 4% |
| 37079 | 20% | Stewart County 80% |
| 37050 | 22% | Stewart County 51%; Houston County 27% |
| 37052 | 98% | Dickson County 2% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
PO Box and single-organization ZIP codes
Source: GeoNames postal codes (CC BY 4.0).
Which first three digits do Montgomery County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Montgomery County's ZIP codes use 3 prefixes: 370, 371 and 422.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 370 | Nashville, TN (SCF 370) | 11 | 77 |
| 371 | Nashville, TN (SCF 370) | 3 | 57 |
| 422 | Nashville, TN (SCF 370) | 1 | 36 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.