| City: | Seguin, Texas |
| City Alias: | New Berlin |
| County: | Guadalupe County |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 8:00:19 PM |
| Population: | 51,772 [See All] |
| Area Code: | 830 |
| Classification: | Standard [Normal Street Delivery] |
| Coordinates: | 29.5696, -97.9385 |
| Land Area: | 355.457 sq mi |
| Quick Link: |
ZIP Code 78155 has 51,772 residents and 18,768 households (average 2.67 persons per household). The median age is 39.7 years, older than the state (35.6) and about the same as the nation (38.8). The gender split is 49.3% male and 50.7% female, which is about the same as the national male share (49.1%), making this a female-majority area. Largest groups are White (60.8%, much higher than the state average of 50.1%) and Hispanic or Latino (44.8%); Hispanic or Latino residents make up 44.8%, which is much higher than the national average (18.7%).
Explore More:Population Over TimeBy Age & GenderBy RaceBy GenderNativity & Citizenship
| 2020 Population: | 51,772Source: Census DHC |
| 2023 ACS Population Estimate: | 53,449Source: Census ACS |
| 2025 ZC Population Estimate: | 67,663Source: ZIP-Codes.com |
| Population Density: | 145.6 people per sq mile |
| Average Income: | $71,367Source: Census ACS |
| Households: | 18,768Source: Census DHC |
| Average House Value: | $246,000Source: Census ACS |
| Persons Per Household: | 2.67Source: Census DHC |
| Average Family Size: | 3.11Source: Census ACS |
| Group | 2010 | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Census ACS Population Estimate | -- | 45,329 | 46,248 | 46,816 | 47,193 | 47,263 | 46,839 | 47,469 | 48,863 | 48,909 | 50,832 | 51,656 | 52,295 | 53,449 |
| Decennial Census | 45,341 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 51,772 | -- | -- | -- |
Median Age: 39.7
Male Median Age: 38.6
Female Median Age: 40.8
| Group | < 5 | 5-9 | 10-14 | 15-19 | 20-24 | 25-29 | 30-34 | 35-39 | 40-44 | 45-49 | 50-54 | 55-59 | 60-64 | 65-69 | 70-74 | 75-79 | 80-84 | 85+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Male | 1,554 | 1,649 | 1,794 | 1,891 | 1,711 | 1,530 | 1,563 | 1,520 | 1,402 | 1,498 | 1,560 | 1,721 | 1,741 | 1,469 | 1,249 | 817 | 452 | 378 |
| Female | 1,487 | 1,600 | 1,742 | 1,808 | 1,593 | 1,592 | 1,539 | 1,524 | 1,460 | 1,552 | 1,594 | 1,839 | 1,826 | 1,620 | 1,342 | 891 | 605 | 659 |
| Total | 3,041 | 3,249 | 3,536 | 3,699 | 3,304 | 3,122 | 3,102 | 3,044 | 2,862 | 3,050 | 3,154 | 3,560 | 3,567 | 3,089 | 2,591 | 1,708 | 1,057 | 1,037 |
| White: | 31,502 | 48.33% |
| Black: | 2,426 | 3.72% |
| Hispanic:* | 23,197 | 35.59% |
| Asian: | 398 | 0.61% |
| American Indian: | 436 | 0.67% |
| Hawaiian: | 51 | 0.08% |
| Other: | 7,173 | 11.00% |
| Total: | 65,183 | 100% |
| Gender | Count | % | Median Age |
|---|---|---|---|
| Males: | 25,499 | 49.25% | 38.6 years |
| Females: | 26,273 | 50.75% | 40.8 years |
| Total: | 51,772 | 100% | 39.7 years |
| Native, born in the United States: | 48,374 | 90.50% |
| Native, born in PR, Island Areas, or abroad: | 628 | 1.17% |
| Foreign born, naturalized U.S. citizen: | 1,697 | 3.17% |
| Foreign born, not a U.S. citizen: | 2,750 | 8.32% |
| Total Population: | 53,449 | 100% |
| Total Native Population: | 49,002 | 91.68% |
| Total Foreign-born Population: | 4,447 | 8.32% |
In 2023, the Median household income is $71,367, which is considerably lower than the national median ($78,538), is up $22,242 (45.3%) since 2011 and above its 2019 pre-pandemic level by $13,363. Family households earn a median of $84,898 versus $42,162 for nonfamily households (a difference of $42,736). By gender, male median income is $57,767 and female is $43,961, which is well under the national female median ($53,445), with a current gap of $13,806 that has widened from 2011 to 2023. The labor-force participation rate is 62.3%, which is a bit lower than the state rate (65.3%). The unemployment rate is 3.4%, which is below the national rate (5.2%). The largest occupation group is Management (31.1%).
Explore More:Income Over TimeHousehold IncomeEmployment StatusBy Occupation
| Income Type | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Household Income | $49,125 | $50,514 | $49,399 | $48,332 | $48,094 | $49,934 | $51,274 | $55,679 | $58,004 | $58,900 | $62,243 | $68,430 | $71,367 |
| Median Family Income | $56,270 | $58,946 | $58,845 | $61,416 | $61,888 | $62,950 | $63,949 | $67,705 | $70,737 | $69,942 | $72,533 | $79,314 | $84,898 |
| Median NonFamily Income | $24,726 | $25,406 | $25,732 | $25,584 | $24,690 | $25,405 | $26,205 | $28,616 | $31,390 | $37,310 | $35,393 | $39,498 | $42,162 |
| Median Male Income | $37,638 | $40,180 | $39,657 | $39,702 | $40,566 | $40,516 | $41,030 | $42,460 | $43,897 | $42,627 | $47,628 | $54,334 | $57,767 |
| Median Female Income | $29,696 | $31,484 | $30,564 | $30,858 | $29,689 | $29,654 | $30,652 | $34,634 | $35,239 | $34,509 | $37,095 | $40,095 | $43,961 |
| Employed: | 26,021 | 60.09% |
| Unemployed: | 919 | 2.12% |
| Not In Labor Force: | 16,363 | 37.79% |
| Total: | 43,303 | 100% |
| Management, business, science, and arts: | 8,089 | 31.09% |
| Service: | 4,679 | 17.98% |
| Sales and Office: | 5,325 | 20.46% |
| Natural resources, construction, and maintenance: | 2,848 | 10.95% |
| Production, transportation, and material moving: | 5,080 | 19.52% |
| Total Civilian Employed Population: | 26,021 | 100% |
In 2023, the median home value is $246,000, which is much lower than the national median ($303,400), is up $138,200 (128.20%) since 2011 and above its 2019 pre-pandemic level by $89,100. The median gross rent is $1,149, which is well under the national median ($1,348), is up $422 (58.05%) since 2011 and above its 2019 pre-pandemic level by $249. Of occupied housing, owners make up 73.08% (50.31% with a mortgage, 49.69% free-and-clear) and renters 26.92% - making this ZIP Code more home ownership than the state and under national rental averages. The vacancy rate is 7.86%, which is markedly below the national rate (10.43%).
Explore More:Compare Home ValueHome Value Over TimeRent & Over TimeHousing Occupancy
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Home Value | $107,800 | $118,600 | $114,400 | $115,500 | $116,500 | $123,600 | $130,800 | $144,000 | $156,900 | $167,900 | $179,200 | $216,300 | $246,000 |
| Less than $500: | 292 | 5.40% |
| $500 to $999: | 1,270 | 23.50% |
| $1,000 to $1,499: | 2,156 | 39.90% |
| $1,500 to $1,999: | 518 | 9.59% |
| $2,000 to $2,499: | 493 | 9.12% |
| $2,500 to $2,999: | 81 | 1.50% |
| $3,000 or more: | 49 | 0.91% |
| No Rent: | 545 | 10.09% |
| Total: | 5,404 | 100% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Rent | $727 | $761 | $737 | $708 | $753 | $803 | $833 | $849 | $900 | $967 | $998 | $1,083 | $1,149 |
| Owner Occupied (with mortgage): | 7,382 | 36.77% |
| Owner Occupied (free and clear, no mortgage): | 7,292 | 36.32% |
| Renter Occupied: | 5,404 | 26.92% |
| Total Occupied Housing Units: | 20,078 | 100% |
| Occupied Housing Units: | 20,078 | 92.14% |
| Vacant Housing Units (not graphed): | 1,713 | 7.86% |
| Total Housing Units: | 21,791 | 100% |
| Single-Family Units: | 15,008 | 68.87% |
| Multi-Family Units: | 2,429 | 11.15% |
| Other Units: | 4,354 | 19.98% |
| Total Housing Units: | 21,791 | 100% |
In 2023, 22.50% of adults (25+) have a bachelor's degree or higher, which is far lower than the national rate (35.00%). High school or higher is 85.10%, which is falls below the national rate (89.40%). The uninsured rate is 14.20%, which is far higher than the national rate (8.60%). The share of people in poverty is 13.90%, which is far higher than the national rate (8.70%), up 1.80 percentage points since 2011 and above its 2019 pre-pandemic level by 3.90 percentage points. This points to rising hardship - a weaker consumer base, greater strain on public services, and job-market headwinds. Among residents ages 3+, the largest enrollment group is elementary (37.33%). College enrollment is 23.19%, which is falls below the national rate (26.70%), indicating the community may be more oriented toward vocational/trade or direct-to-workforce opportunities.
Explore More:Educational AttainmentHealth InsurancePoverty Over TimeSchool Enrollment
| Less than 9th grade: | 2,570 | 6.93% |
| 9th to 12th grade, no diploma: | 2,946 | 7.94% |
| High school graduate (includes equivalency): | 13,777 | 37.13% |
| Some college, no degree: | 6,871 | 18.52% |
| Associate's degree: | 2,605 | 7.02% |
| Bachelor's degree: | 5,598 | 15.09% |
| Graduate or professional degree: | 2,737 | 7.38% |
| Total: | 37,104 | 100% |
| High school or higher: | 31,588 | 85.13% |
| Bachelor's degree or higher: | 8,335 | 22.46% |
| Private Insurance: | 32,398 | 55.07% |
| Public Insurance: | 18,981 | 32.26% |
| No Insurance: | 7,455 | 12.67% |
| Total: | 58,834 | 100% |
| Has Health Insurance: | 51,379 | 87.33% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| % of People in Poverty | 12.1% | 12.6% | 11.8% | 12.0% | 12.1% | 12.4% | 11.3% | 9.0% | 10.0% | 13.0% | 13.6% | 14.1% | 13.9% |
Note: Counts of Families & People in poverty are not published at the ZIP Code level due to small sample sizes. Percentages shown are survey estimates from the American Community Survey (ACS). They may differ from official poverty statistics. The U.S. Census Bureau defines poverty status by comparing a family's or individual's total income with federal poverty thresholds that vary by family size and composition.
| Nursery School, Preschool: | 512 | 4.39% |
| Kindergarten: | 674 | 5.78% |
| Elementary school (grades 1-8): | 4,352 | 37.33% |
| High school (grades 9-12): | 3,417 | 29.31% |
| College or graduate school: | 2,703 | 23.19% |
| Total: | 11,658 | 100% |
| Early Childhood: | 1,186 | 10.17% |
| K-12 (Primary & Secondary School): | 8,443 | 72.42% |
ZIP Code 78155 supports both business and residential activity. According to the Business Census (2023), there are 1,065 business establishments, employing about 20,490 people with an annual payroll of $1,195,648,000. USPS data shows 25,342 residential mailboxes and 1,344 business mailboxes, reflecting local delivery coverage.
| # Residential Mailboxes: | 25,342Source: USPS |
| # Business Mailboxes: | 1,344Source: USPS |
| Total Delivery Receptacles: | 38,062Source: USPS |
| Single Family Delivery Units: | 15,030Source: USPS |
| Multi Family Delivery Units: | 1,274Source: USPS |
| # of Businesses: | 1,065Source: CBP |
| 1st Quarter Payroll: | $297,556,000Source: CBP |
| Annual Payroll: | $1,195,648,000Source: CBP |
| # of Employees: | 20,490Source: CBP |
ZIP Code 78155 is located in Guadalupe County, Texas, within the San Antonio-New Braunfels, TX Metropolitan Statistical Area (CBSA 41700) and Texas's 15th and 28th Congressional Districts. This Metro area has a population of 2,612,802 people, about 1.98% of whom live in ZIP Code 78155. It covers 355.457 sq mi of land and a water area of 1.48 sq mi.
| CBSA Name: | San Antonio-New Braunfels, TXSource: Census |
| CBSA Number: | 41700Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 2,612,802Source: Census |
| MSA: | San Antonio, TX MSASource: Census |
| Land Area: | 355.457 sq miSource: Census |
| Water Area: | 1.48 sq miSource: Census |
| Congressional District: | 15,28Source: USPS |
| Congressional Land Area: | 7804.07, 9378.53 sq miSource: Census |
| PMSA: | --Source: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 4866644Source: Census |
| Place Name: | Seguin city; TexasSource: Census |
ZIP Code 78155 is part of 2 school districts, including: Navarro Independent School District (Grades PK thru 12) and Seguin Independent School District (Grades Pre-Kindergarten thru 12th). There are 18 public schools and 3 private school(s) in this ZIP Code. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.
Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on November 1, 2025.