County ZIP codes · Texas · FIPS 48203
Harrison County, TX ZIP Codes
Harrison County, Texas has 16 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 15 residential and 1 for PO boxes or a single organization. 11 of the residential ones lie mainly in Harrison County and 4 mainly in a neighboring county; 8 cross the county line. Median household income ranges from $42,386 in 75670 (Marshall) to $97,596 in 75650 (Hallsville) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Harrison 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 $52,330 and $73,190.
They carry 11 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 15 residential ZIP codes in Harrison County
11 ZIP codes lie mainly in Harrison County; 4 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 75602 | Longview | 20,671 | 398 | $52k | $140k | 81% |
| 75670 | Marshall | 18,670 | 146 | $42k | $112k | 100% |
| 75672 | Marshall | 16,509 | 71 | $71k | $172k | 100% |
| 75650 | Hallsville | 10,703 | 91 | $98k | $197k | 100% |
| 75640 | Diana | 6,142 | 71 | $81k | $273k | 60% |
| 75692 | Waskom | 5,563 | 56 | $64k | $152k | 94% |
| 75661 | Karnack | 2,360 | 18 | $42k | $159k | 100% |
| 75651 | Harleton | 1,871 | 34 | $44k | $163k | 91% |
| 75659 | Jonesville | 37 | 12 | – | – | 100% |
| 75671 | Marshall | no residents | 0 | – | – | 100% |
| 75694 | Woodlawn | no residents | 0 | – | – | 100% |
Partly in Harrison 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?
8 ZIP codes of Harrison County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Harrison | Elsewhere |
|---|---|---|
| 75605 | 41% | Gregg County58% |
| 75602 | 81% | Gregg County19% |
| 75601 | 22% | Gregg County78% |
| 75657 | 5% | Marion County87%; Cass County8% |
| 75640 | 60% | Upshur County37%; Marion County3% |
| 75692 | 94% | Panola County6% |
| 75651 | 91% | Marion County9% |
| 75642 | 35% | Panola County65% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
PO Box and single-organization ZIP codes
| ZIP | Postal name |
|---|---|
| 75688 | Scottsville |
Source: GeoNames postal codes (CC BY 4.0).
Which first three digits do Harrison County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Harrison County starts with 756.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 756 | Shreveport, LA (SCF 710) | 16 | 57 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.