ZIP codes in Callahan County
9 ZIPs touch Callahan County, Texas. The blue dashed line is the county border; orange ZIPs reach into it.
9
ZIP codes
8
cross the county line
76,730
people in these ZIPs
254
counties in TX
Most people
Callahan County ZIP list
More counties in Texas
- Brooks County2
- Brown County12
- Burleson County8
- Burnet County13
- Caldwell County14
- Calhoun County6
- Cameron County22
- Camp County2
- Carson County6
- Cass County15
- Castro County10
- Chambers County11
Questions people actually ask
How many ZIP codes are in Callahan County, Texas?
9 ZIP codes reach into Callahan County. 8 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in Callahan County has the most people?
79601 (Abilene) has about 28,050 residents, the most of any ZIP touching Callahan County, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Callahan 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 Callahan 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