Baytown, TX ZIP Codes
Baytown, Texas has 4 ZIP codes: 3 for street addresses (, and ) and 1 for PO boxes ().
Your street decides which one you use.
Which Baytown ZIP code is my address in?
Street ranges from the Census Bureau, 2026. PO box and organization ZIP codes are not found by street. A new street may be missing: address not found?
Baytown ZIP code map
Tap or point to an area to see its ZIP code.Full-size map
77522 has no area on the map: it is a PO box or single-organization ZIP code. Dashed line: Baytown city limits.
Map: Census Bureau ZIP Code Tabulation Areas (2020) and place limits (2024).
All Baytown ZIP codes by type
| ZIP | Type and post office or station |
|---|---|
| 77520 | street delivery Baytown |
| 77521 | street delivery Baytown |
| 77522 | PO boxes at the Baytown post office Baytown |
| 77523 | street delivery Baytown |
Why your mail may say Baytown when you live outside it
Baytown ZIP codes also cover Mont Belvieu, Beach City and Cove, so a letter addressed to Baytown can go to a home outside the city limits.
A ZIP code does not set your city, school district or tax. Harris County property records show which city you are in.
Baytown ZIP code questions
What is the main ZIP code for Baytown?
77520, the ZIP code of the main Baytown post office at 601 W Baker Rd.
Which Baytown ZIP codes are for PO boxes only?
77522. Mail to it goes to boxes at the post office, not to street addresses.
What county is Baytown in?
Harris County, with parts in Chambers County.
ZIP codes for towns near Baytown
More towns near Baytown: Friendswood, Texas City, Houston, Pearland, Spring, Missouri City, Galveston, Sugar Land, Mission Bend.
Sources and last checked
USPS ZIP Locale Detail (October 1, 2026), GeoNames (CC BY 4.0), U.S. Census Bureau, HUD-USPS crosswalk.
Checked October 20, 2026. Sources · How we build our lists · Corrections