County ZIP codes · Mississippi · FIPS 28129
Smith County, MS ZIP Codes
Smith County, Mississippi has 14 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 4 of the residential ones lie mainly in Smith County and 10 mainly in a neighboring county; 12 cross the county line. Median household income ranges from $46,030 in 39074 (Forest) to $88,597 in 39042 (Brandon) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Smith 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 $49,140 and $58,438.
They carry 14 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 14 residential ZIP codes in Smith County
4 ZIP codes lie mainly in Smith County; 10 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 39168 | Taylorsville | 6,270 | 42 | $45k | $90k | 65% |
| 39153 | Raleigh | 2,968 | 20 | $61k | $99k | 100% |
| 39116 | Mize | 2,594 | 30 | $72k | $138k | 100% |
| 39152 | Pulaski | 583 | 8 | $42k | – | 65% |
Partly in Smith County
| In this county | ||||||
|---|---|---|---|---|---|---|
| 39422 | Bay Springs | 4,427 | 32 | $52k | $88k | 29% |
| 39117 | Morton | 10,431 | 42 | $58k | $133k | 26% |
| 39111 | Magee | 9,143 | 65 | $49k | $142k | 21% |
| 39338 | Louin | 3,566 | 17 | $50k | $60k | 18% |
| 39074 | Forest | 14,283 | 51 | $46k | $107k | 17% |
| 39119 | Mount Olive | 5,739 | 39 | $50k | $73k | 16% |
| 39092 | Lake | 3,343 | 33 | $32k | $48k | 6% |
| 39336 | Lawrence | 1,345 | 19 | $39k | $57k | 5% |
| 39042 | Brandon | 39,142 | 183 | $89k | $264k | 1% |
| 39481 | Stringer | 1,567 | 42 | $62k | $166k | 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?
12 ZIP codes of Smith County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Smith | Elsewhere |
|---|---|---|
| 39042 | 1% | Rankin County 99% |
| 39074 | 17% | Scott County 83% |
| 39117 | 26% | Scott County 70%; Rankin County 4% |
| 39111 | 21% | Simpson County 79% |
| 39168 | 65% | Jones County 20%; Covington County 16% |
| 39119 | 16% | Covington County 56%; Jefferson Davis County 16%; Simpson County 12% |
| 39422 | 29% | Jasper County 71% |
| 39338 | 18% | Jasper County 82% |
| 39092 | 6% | Scott County 80%; Newton County 14% |
| 39481 | 1% | Jasper County 99% |
| 39336 | 5% | Newton County 87%; Jasper County 9% |
| 39152 | 65% | Scott County 35% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
Which first three digits do Smith County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Smith County's ZIP codes use 4 prefixes: 390, 391, 393 and 394.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 390 | Jackson, MS (SCF 390) | 3 | 43 |
| 391 | Jackson, MS (SCF 390) | 7 | 57 |
| 393 | Jackson, MS (SCF 390) | 2 | 43 |
| 394 | Mobile, AL (SCF 365) | 2 | 45 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.