ZIP code 78155
Where is ZIP code 78155?
Seguin, Texas
Guadalupe County · Standard ZIP code
ZIP code 78155 belongs to Seguin, Texas in Guadalupe County. 78155 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Central Time zone and uses area codes 210, 512, 726, 737 and 830. About 55,600 people live in the 78155 area, where the median household income is $71,039. The closest ZIP codes are 78156 (Seguin, 3.5 mi north), 78115 (Geronimo, 4.8 mi west) and 78123 (Mc Queeney, 5.7 mi northwest).
| ZIP code | 78155 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Seguin |
| Also accepted | New Berlin |
| State | Texas (TX) |
| County | Guadalupe County |
| Time zone | Central Time · now |
| Area codes | 210, 512, 726, 737, 830 |
| Coordinates | 29.5613, -97.9628 map |
| 3-digit prefix | 781 |
Population and income in 78155
| Population | 55,600 · higher than 95% of Texas ZIP codes |
|---|---|
| People per square mile | 156 · higher than 56% of Texas ZIP codes |
| Median age | 39.4 years · higher than 56% of Texas ZIP codes |
| Men / women | 50% / 50% |
| Median household income | $71,039 · higher than 52% of Texas ZIP codes |
| Income per person | $36,571 |
| Below the poverty line | 17% |
| Bachelor’s degree or higher | 22% of adults 25+ |
| Median home value | $266,700 · higher than 69% of Texas ZIP codes |
| Median rent | $1,198 a month |
| Housing units | 22,688 |
| Households | 21,007 (2.56 people on average) |
| Owners / renters | 73% / 28% |
| Land area | 355.46 sq mi (plus 1.48 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 78155. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 78155
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 78156 | Seguin, TX | 3.5 mi N | PO Box only |
| 78115 | Geronimo, TX | 4.8 mi W | PO Box only |
| 78123 | Mc Queeney, TX | 5.7 mi NW | Standard |
| 78638 | Kingsbury, TX | 11.1 mi NE | Standard |
| 78124 | Marion, TX | 11.4 mi W | Standard |
| 78130 | New Braunfels, TX | 13 mi NW | Standard |
| 78131 | New Braunfels, TX | 13.8 mi NW | PO Box only |
| 78135 | New Braunfels, TX | 13.8 mi NW | Standard |
| 78108 | Cibolo, TX | 16 mi W | Standard |
| 78152 | Saint Hedwig, TX | 16.5 mi SW | Standard |
| 78670 | Staples, TX | 16.9 mi NE | PO Box only |
| 78122 | Leesville, TX | 16.9 mi SE | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 78155 or measure the distance to another ZIP code.
How to address mail to 78155
123 MAIN ST
SEGUIN TX 78155
Put the city, the two-letter state code and the ZIP code on the last line. USPS also accepts NEW BERLIN as the city name for 78155. Adding the 4-digit ZIP+4 code (78155-XXXX) helps mail sort faster but isn’t required.
Other ZIP codes in Seguin, TX
All Seguin ZIP codes with population and income →
Questions
- What city is ZIP code 78155?
- 78155 is a Seguin, Texas ZIP code. New Berlin is also accepted as the city name.
- What county is 78155 in?
- ZIP code 78155 is in Guadalupe County, Texas.
- What time zone is ZIP code 78155 in?
- 78155 is in the Central Time zone (America/Chicago).
- What area code is 78155?
- Phone numbers in ZIP code 78155 use area codes 210, 512, 726, 737 and 830.
- What is the population of ZIP code 78155?
- About 55,600 people live in ZIP code 78155, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 78155?
- The median household income in 78155 is $71,039 a year, higher than 52% of Texas ZIP codes.
- What ZIP codes are near 78155?
- The nearest ZIP codes to 78155 are 78156 (Seguin, 3.5 miles), 78115 (Geronimo, 4.8 miles), 78123 (Mc Queeney, 5.7 miles) and 78638 (Kingsbury, 11.1 miles).