Find the last 4 digits (ZIP+4) for an address in 78621

ZIP 78621, Elgin, TX is filled in. Just type the street address.

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ZIP Code 78621 – Elgin, TX

Elgin, Texas · Bastrop County · Central time

ZIP code78621
CityElgin
StateTexas
CountyBastrop CountyTravis CountyWilliamson CountyLee County
Population30,411
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area177.72 sq mi
Center (lat, long)30.3370, -97.3604

Area codes in this area

512737

These are the area codes that most often serve ZIP 78621 (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

78650 Mc Dade · 8.7 mi78615 Coupland · 8.9 mi78653 Manor · 9.5 mi78763 Austin · 11.9 mi78602 Bastrop · 14.2 mi76578 Thrall · 15.5 mi78724 Austin · 15.6 mi78660 Pflugerville · 15.6 mi

About ZIP 78621

ZIP code 78621 is assigned to Elgin, Texas. It crosses 4 counties; most of its land is in Bastrop County. Its Census area covers about 177.72 square miles of land. The closest neighboring ZIP is 78650 (Mc Dade), about 8.7 miles away.

Every address in 78621 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