Find the last 4 digits (ZIP+4) for an address in 77021

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ZIP Code 77021 – Houston, TX

Houston, Texas · Harris County · Central time

ZIP code77021
CityHouston
StateTexas
CountyHarris County
Population26,153
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area6.08 sq mi
Center (lat, long)29.6984, -95.3569

Area codes in this area

281346621832713

These are the area codes that most often serve ZIP 77021 (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

77204 Houston · 1.7 mi77004 Houston · 1.8 mi77033 Houston · 2.4 mi77030 Houston · 2.7 mi77023 Houston · 2.8 mi77054 Houston · 3.1 mi77051 Houston · 3.2 mi77087 Houston · 3.3 mi

About ZIP 77021

ZIP code 77021 is assigned to Houston, Texas. It lies in Harris County. Its Census area covers about 6.08 square miles of land. The closest neighboring ZIP is 77204 (Houston), about 1.7 miles away.

Every address in 77021 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