ZIP codes in Brazos County
18 ZIPs touch Brazos County, Texas. The blue dashed line is the county border; orange ZIPs reach into it.
18
ZIP codes
4
cross the county line
267,607
people in these ZIPs
254
counties in TX
Most people
Brazos County ZIP list
More counties in Texas
- Bexar County103
- Blanco County8
- Borden County9
- Bosque County11
- Bowie County14
- Brazoria County25
- Brewster County6
- Briscoe County4
- Brooks County2
- Brown County12
- Burleson County8
- Burnet County13
Questions people actually ask
How many ZIP codes are in Brazos County, Texas?
18 ZIP codes reach into Brazos County, including 7 PO Box or single-address ZIPs placed by the town they serve. 4 of them are only partly in the county and also cover a neighboring county.
Which ZIP code in Brazos County has the most people?
77845 (College Station) has about 76,764 residents, the most of any ZIP touching Brazos County, in the Census Bureau’s ACS 2020–2024 estimates.
Can a ZIP code be in Brazos 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 Brazos 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