Seguin, TX ZIP Codes
One ZIP code serves Seguin, Texas: 78155. Together they are home to 55,600 residents in 21,007 households. That is more than the 33,754 people counted inside Seguin city limits, because these ZIP codes reach past its boundary.
Seguin city limits (Census)
| Measure | Census figure |
|---|---|
| Residents | 33,754 |
| Households | 12,483 |
| Median household income | $64,861 |
| Median home value | $249,400 |
| Median age | 37.1 |
| Median rent | $1,187 |
All 1 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 55,600 |
| Households (sum of ZIP codes) | 21,007 |
| Median household income, range across ZIP codes | $71,039 (78155) to $71,039 (78155) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $71,039 |
| Homeowners | 72.5% |
| Households with kids under 18 | 32.6% |
| Moved in the past year | 14.4% |
| Carrier routes in EDDM2GO's route library | 35 routes, 26,649 homes (1 of 1 ZIP codes) |
Every ZIP code in Seguin
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 78155 | Seguin | 55,600 | 21,007 | $71,039 | $266,700 | 72.5% | 32.6% | 14.4% | 35 | 28,019 | 11% of its land; mailing city |
A ZIP code is listed for Seguin when at least 10% of its land lies inside Seguin city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Seguin. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Seguin.
Counties
- Guadalupe County — 12 ZIP codes
Metro maps
- San Antonio ZIP code map — 121 ZIP codes
Price a mailing to Seguin ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Seguin, TX?
- 78155. A ZIP code is listed for Seguin when at least 10% of its land lies inside Seguin city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Seguin.
- What is the population of Seguin, TX?
- The Census Bureau counts 33,754 residents inside Seguin city limits (ACS 2020–2024). The 1 ZIP code that serve Seguin hold 55,600 residents in all.
- What is the median household income in Seguin, TX?
- $64,861 inside Seguin city limits, per the Census Bureau. Across its ZIP codes the medians run from $71,039 to $71,039.
- How many carrier routes and mailboxes are in Seguin, TX?
- For the 1 of 1 ZIP codes in EDDM2GO's stored route library: 35 carrier routes reaching 26,649 residential and 1,366 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.