ZIP codes in Harrison County
16 ZIPs touch Harrison County, Texas. The blue dashed line is the county border; orange ZIPs reach into it.
16
ZIP codes
9
cross the county line
141,312
people in these ZIPs
254
counties in TX
Most people
Harrison County ZIP list
More counties in Texas
- Hall County7
- Hamilton County10
- Hansford County3
- Hardeman County2
- Hardin County12
- Harris County238
- Hartley County4
- Haskell County11
- Hays County15
- Hemphill County4
- Henderson County17
- Hidalgo County32
Questions people actually ask
How many ZIP codes are in Harrison County, Texas?
16 ZIP codes reach into Harrison County, including 1 PO Box or single-address ZIPs placed by the town they serve. 9 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in Harrison County has the most people?
75605 (Longview) has about 35,417 residents, the most of any ZIP touching Harrison County, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Harrison County and another county?
Yes. ZIP codes follow mail routes, not county lines. Rows marked with a percentage show how much of that ZIP’s land is in Harrison County. For one address, pin the exact spot on the ZIP finder to see its county.
Where does this list come from?
ZIP areas and their county overlaps come from the Census Bureau’s 2020 ZIP Code Tabulation Area to county relationship file. PO Box ZIPs have no area, so each is placed in the county of the ZIP area nearest the town it serves.
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Updated 2026-11-10 · Where the data comes from