Find the last 4 digits (ZIP+4) for an address in 78155

ZIP 78155, Seguin, TX is filled in. Just type the street address.

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ZIP Code 78155 – Seguin, TX

Seguin, Texas · Guadalupe County · Central time

ZIP code78155
CitySeguin
StateTexas
CountyGuadalupe County
Population55,600
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area355.46 sq mi
Center (lat, long)29.5375, -97.9366

Area codes in this area

830

These are the area codes that most often serve ZIP 78155 (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

78156 Seguin · 5.5 mi78115 Geronimo · 6.3 mi78123 Mc Queeney · 7.7 mi78638 Kingsbury · 12.4 mi78124 Marion · 12.7 mi78130 New Braunfels · 13.4 mi78122 Leesville · 14.8 mi78604 Belmont · 15.2 mi

About ZIP 78155

ZIP code 78155 is assigned to Seguin, Texas. It lies in Guadalupe County. Its Census area covers about 355.46 square miles of land. The closest neighboring ZIP is 78156 (Seguin), about 5.5 miles away.

Every address in 78155 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