ZIP codes in Hidalgo County
32 ZIPs touch Hidalgo County, Texas. The blue dashed line is the county border; orange ZIPs reach into it.
32
ZIP codes
3
cross the county line
896,257
people in these ZIPs
254
counties in TX
Most people
Hidalgo County ZIP list
More counties in Texas
- Harrison County16
- Hartley County4
- Haskell County11
- Hays County15
- Hemphill County4
- Henderson County17
- Hill County20
- Hockley County12
- Hood County9
- Hopkins County14
- Houston County8
- Howard County6
Questions people actually ask
How many ZIP codes are in Hidalgo County, Texas?
32 ZIP codes reach into Hidalgo County, including 2 PO Box or single-address ZIPs placed by the town they serve. 3 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in Hidalgo County has the most people?
78542 (Edinburg) has about 89,401 residents, the most of any ZIP touching Hidalgo County, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Hidalgo 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 Hidalgo 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