Seguin is a city in Guadalupe County, Texas, home to about 33,754 people across 38 square miles. Its ZIP code is 78155, and parts of 78123 and 78638 are in Seguin too.
Homes sold for a median of $145 per square foot in the three months ending August 2026, a balanced market.
Mostly Seguin; also Geronimo and New Berlin
Mostly McQueeney; part is in Seguin
Part is in Seguin, part in Kingsbury and Staples
Each card is that ZIP code’s whole market, including any part outside Seguin. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Seguin’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | San Antonio International Airport (SAT)31 miles away |
|---|---|
| Nearest city of 250,000+ | San Antonio, TX35 miles away |
Straight-line distances from the center of Seguin; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Seguin had 29,433 residents in the 2020 census, up 34% since 2000.
It’s the 114th largest of 1,778 towns in Texas by population.
Guadalupe County grew from 21,385 residents in 1900 to 172,706 in 2020.
Guadalupe County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 98°F in summer, and winter lows average 40°F. About 31.2 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Austin San Antonio, TX weather station (11 miles away).
45,112 jobs at 2,768 businesses in Guadalupe County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
268 doctors and other health care providers list an office in Seguin.
Nearest hospitals
Providers with an office here
| Primary care doctors | 39 |
|---|---|
| Specialist doctors | 60 |
| Dentists | 35 |
| Nurse practitioners and physician assistants | 53 |
| Mental health providers | 49 |
| Physical and occupational therapists | 16 |
| Optometrists | 6 |
| Chiropractors | 10 |
| Pharmacies | 9 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (20 nearby)
Grocery stores (3 nearby)
Pharmacies (2 nearby)
Libraries (2 nearby)
Museums (5 nearby)
Theaters and performance venues (2 nearby)
Counts are within about 4 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Established in 1838.
Notable people born here
Source: Wikidata (wikidata.org), the free knowledge base; people are listed by place of birth.
Public schools here are run by Seguin ISD, Comal ISD, Navarro ISD and others. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Ball Early Childhood CenterSeguin | Pre-K | 422 | Public | 1.1 mi |
| Comal Creek ElSchertz | Pre-K–5 | 455 | Public | 17.5 mi |
| Navarro ElSeguin | Pre-K–2 | 719 | Public | 6.5 mi |
| Seguin CampusSeguin | Pre-K–12 | 284 | Charter | 2.5 mi |
| Jefferson Ave ElSeguin | K–5 | 409 | Public | 1.0 mi |
| Koennecke ElSeguin | K–5 | 560 | Public | 1.3 mi |
| Oralia R Rodriguez ElSeguin | K–5 | 499 | Public | 1.9 mi |
| Patlan ElSeguin | K–5 | 424 | Public | 2.3 mi |
| Vogel ElSeguin | K–5 | 484 | Public | 2.5 mi |
| Weinert ElSeguin | K–5 | 443 | Public | 1.2 mi |
| Discipline Alternative School at SaegertSeguin | 3–12 | 44 | Alternative Education | 0.6 mi |
| Navarro IntSeguin | 3–5 | 670 | Public | 6.5 mi |
| Briesemeister MiddleSeguin | 6–8 | 798 | Public | 2.0 mi |
| Jim Barnes MiddleSeguin | 6–8 | 762 | Public | 1.5 mi |
| Navarro J HSeguin | 6–8 | 610 | Public | 6.5 mi |
| Juvenile Detention CenterSeguin | 7–12 | 28 | Alternative Education | 2.8 mi |
| Mercer & Blumberg Lrn CtrSeguin | 9–12 | 73 | Alternative Education | 0.6 mi |
| Navarro H SSeguin | 9–12 | 703 | Public | 6.4 mi |
| Seguin H SSeguin | 9–12 | 2,020 | Public | 1.4 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| St James Catholic SchoolSeguin | Pre-K–8 | 126 | Roman Catholic | 0.3 mi |
| Lifegate Christian SchoolSeguin | K–12 | 142 | Christian (no specific denomination) | 3.6 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with McQueeney, Geronimo, New Berlin, Kingsbury and Staples.
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.