Guadalupe County, TX ZIP codes
There are 9 ZIP codes in Guadalupe County, TX, in 8 towns, from 78108 to 78670. The largest are 78130 (New Braunfels), 78155 (Seguin) and 78108 (Cibolo).
The county seat is Seguin.
- ZIP codes
- 9
- Towns
- 8
- County seat
- Seguin
- County FIPS
48187- State
- Texas
- Population
- 183,642
- Median household income
- $92,375
- Land area
- 711 sq mi
- Area code
- 830
- Metro area
- San Antonio-New Braunfels
Guadalupe County ZIP codes by town
Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.
Map of Guadalupe County ZIP codes
The ZIP codes of Guadalupe County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Guadalupe County in numbers
About 183,642 people live in Guadalupe County, in 65,424 households, the 28th most populous of Texas's 254 counties. The median household income is $92,375 a year, 18% above the Texas median of $78,476 (US: $80,734). The median owner-occupied home is valued at $304,400 (7% above the Texas median), and median gross rent is $1,517 a month. The median age is 37.6; 31.4% of adults 25 and over hold a bachelor's degree or higher (33.8% across Texas); the average commute takes 29 minutes.
| Population | 183,642 |
|---|---|
| Households | 65,424 |
| Median age | 37.6 |
| Median household income | $92,375 |
| Median home value | $304,400 |
| Median gross rent | $1,517 |
| Bachelor's degree or higher | 31.4% |
| Mean commute | 28.8 min |
| Population density | 258 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.
Largest towns in Guadalupe County
| Town | ZIP codes | Population |
|---|---|---|
| New Braunfels | 1 | 104,643 |
| Cibolo | 1 | 35,109 |
| Seguin | 2 | 33,754 |
| Mc Queeney | 1 | 2,127 |
| Geronimo | 1 | 1,507 |
| Marion | 1 | 939 |
| Staples | 1 | 288 |
| Kingsbury | 1 | 248 |
Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.
Neighbouring counties
Counties that share a ZIP code with Guadalupe County.
- Bexar County (95)
- Hays County (8)
- Comal County (8)
- Wilson County (7)
- Caldwell County (7)
- Gonzales County (10)
- Karnes County (7)
Not sure you are in Guadalupe County? What county am I in? answers from your location, near a county line included.
Every ZIP code in Guadalupe County, with figures
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
78108 | Cibolo , TX | Standard | 49,784 | $113,004 | $337,600 |
78115 | Geronimo , TX | No street area | — | — | — |
78123 | Mc Queeney , TX | Standard | 2,127 | $97,553 | $238,500 |
78124 | Marion , TX | Standard | 6,157 | $74,192 | $282,700 |
78130 | New Braunfels , TX | Standard | 104,009 | $83,064 | $323,200 |
78155 | Seguin , TX | Standard | 55,600 | $71,039 | $266,700 |
78156 | Seguin , TX | No street area | — | — | — |
78638 | Kingsbury , TX | Standard | 2,135 | $69,250 | $317,400 |
78670 | Staples , TX | Standard | 130 | $78,625 | $244,100 |
Cite this page
zipcodes.pro. “Guadalupe County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/tx/county/guadalupe
Underlying data is public domain or openly licensed — sources, vintages and licences.