County ZIP codes · Mississippi · FIPS 28003
Alcorn County, MS ZIP Codes
Alcorn County, Mississippi has 6 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 5 residential and 1 for PO boxes or a single organization. 3 of the residential ones lie mainly in Alcorn County and 2 mainly in a neighboring county; 5 cross the county line. Median household income ranges from $39,107 in 38683 (Walnut) to $60,078 in 38846 (Glen) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Alcorn 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 $50,356 and $55,380.
They carry 5 postal town names: Corinth, Rienzi, Walnut, Burnsville, Glen.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 5 residential ZIP codes in Alcorn County
3 ZIP codes lie mainly in Alcorn County; 2 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 38834 | Corinth | 27,308 | 122 | $50k | $152k | 99% |
| 38865 | Rienzi | 4,860 | 41 | $55k | $92k | 79% |
| 38846 | Glen | 2,053 | 59 | $60k | $160k | 80% |
Partly in Alcorn 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 Alcorn County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Alcorn | Elsewhere |
|---|---|---|
| 38834 | 99% | Tishomingo County 1% |
| 38865 | 79% | Prentiss County 21% |
| 38683 | 38% | Tippah County 55%; Benton County 7% |
| 38833 | 15% | Tishomingo County 77%; Prentiss County 8% |
| 38846 | 80% | Tishomingo County 20% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
PO Box and single-organization ZIP codes
| ZIP | Postal name |
|---|---|
| 38835 | Corinth |
Source: GeoNames postal codes (CC BY 4.0).
Which first three digits do Alcorn County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Alcorn County's ZIP codes use 2 prefixes: 386 and 388.
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.