Find the last 4 digits (ZIP+4) for an address in 78954

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ZIP Code 78954 – Round Top, TX

Round Top, Texas · Fayette County · Central time

ZIP code78954
CityRound Top
StateTexas
CountyFayette CountyAustin County
Population1,173
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area73.6 sq mi
Center (lat, long)30.0430, -96.6992

Area codes in this area

979

These are the area codes that most often serve ZIP 78954 (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

78961 Round Top · 1.5 mi78940 Fayetteville · 7.5 mi78932 Carmine · 8.4 mi78946 Ledbetter · 11.1 mi78960 Warda · 12.3 mi77835 Burton · 12.3 mi78944 Industry · 13 mi78945 La Grange · 14.3 mi

About ZIP 78954

ZIP code 78954 is assigned to Round Top, Texas. It crosses 2 counties; most of its land is in Fayette County. Its Census area covers about 73.6 square miles of land. The closest neighboring ZIP is 78961 (Round Top), about 1.5 miles away.

Every address in 78954 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