ZIP code 78155: Seguin, TX
78155 is a ZIP code in Seguin, Texas, mainly in Guadalupe County, part of the San Antonio-New Braunfels, TX metro area. About 55,600 people live here.
- Population
- 55,600
- Median household income
- $71,039
- Typical home value
- $267,100-1.8% in 12 months
- Median rent
- $1,198gross, per month
- Median age
- 39.4
- Homeowners
- 72.5%of occupied homes
Shaded: ZIP code 78155's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 78155 details
| City | Seguin |
|---|---|
| State | Texas |
| County | Guadalupe County |
| Metro area | San Antonio-New Braunfels, TX |
| Time zone | Central Time (UTC−6), observes daylight saving time |
| Type | Standard (delivery area) |
| Land area | 355.5 sq mi, plus 1.5 sq mi of water |
| Population density | 156 people per sq mi |
| Bachelor's degree or higher | 21.7% of adults 25+ |
| Average commute | 26.5 minutes |
| Center coordinates | 29.53750, -97.93660 |
Median rent in 78155 by bedrooms
| Size | Median gross rent |
|---|---|
| Studio | $982/mo |
| 1 bedroom | $916/mo |
| 2 bedrooms | $1,129/mo |
| 3 bedrooms | $1,394/mo |
| 4 bedrooms | $2,124/mo |
Gross rent includes utilities paid by the tenant. ACS 2020–2024; sizes with too few rentals to estimate are left out.
ZIP codes near 78155
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 78156 | Seguin, TX | 5.5 mi | — |
| 78115 | Geronimo, TX | 6.3 mi | — |
| 78123 | Mc Queeney, TX | 7.7 mi | 2,127 |
| 78638 | Kingsbury, TX | 12.4 mi | 2,135 |
| 78124 | Marion, TX | 12.7 mi | 6,157 |
| 78130 | New Braunfels, TX | 13.4 mi | 104,009 |
| 78122 | Leesville, TX | 14.8 mi | 338 |
| 78604 | Belmont, TX | 15.2 mi | — |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Buying a home in 78155?
A typical home in ZIP code 78155 is worth about $267,100 (Zillow Home Value Index). The median household here earns $71,039 a year. See what buying here would cost per month, with Texas average taxes and insurance filled in.
Monthly payment for a $267,100 homeWhat can a $71,039 income afford?Rental property numbers
About ZIP code 78155
What city is ZIP code 78155?
ZIP code 78155 is in Seguin, TX, in Guadalupe County.
What county is ZIP code 78155 in?
78155 is mainly in Guadalupe County, Texas.
What is the population of ZIP code 78155?
About 55,600 people live in ZIP code 78155, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 78155 in?
78155 is in Central Time (UTC−6). It observes daylight saving time.
What other ZIP codes does Seguin have?
Seguin, TX also uses 78156.