Find the last 4 digits (ZIP+4) for an address in 77521

ZIP 77521, Baytown, TX is filled in. Just type the street address.

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ZIP Code 77521 – Baytown, TX

Baytown, Texas · Harris County · Central time

ZIP code77521
CityBaytown
StateTexas
CountyHarris CountyChambers County
Population69,038
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area49.27 sq mi
Center (lat, long)29.8119, -94.9633

Area codes in this area

281346621832713

These are the area codes that most often serve ZIP 77521 (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.

Map

Nearby ZIP codes

77522 Baytown · 5.3 mi77562 Highlands · 5.6 mi77520 Baytown · 5.7 mi77580 Mont Belvieu · 6 mi77523 Baytown · 6.6 mi77530 Channelview · 9.2 mi77532 Crosby · 10.1 mi77571 La Porte · 10.2 mi

About ZIP 77521

ZIP code 77521 is assigned to Baytown, Texas. It crosses 2 counties; most of its land is in Harris County. Its Census area covers about 49.27 square miles of land. The closest neighboring ZIP is 77522 (Baytown), about 5.3 miles away.

Every address in 77521 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.

Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources