County ZIP codes · Texas · FIPS 48091
Comal County, TX ZIP Codes
Comal County, Texas has 15 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 13 residential and 2 for PO boxes or a single organization. 6 of the residential ones lie mainly in Comal County and 7 mainly in a neighboring county; 10 cross the county line. Median household income ranges from $54,737 in 78666 (San Marcos) to $162,487 in 78015 (Boerne) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Comal County?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
How different are its ZIP codes?
The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $83,853 and $135,315.
They carry 11 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 13 residential ZIP codes in Comal County
6 ZIP codes lie mainly in Comal County; 7 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 78132 | New Braunfels | 40,953 | 228 | $135k | $620k | 99% |
| 78133 | Canyon Lake | 21,959 | 291 | $84k | $349k | 100% |
| 78070 | Spring Branch | 20,200 | 152 | $115k | $517k | 82% |
| 78163 | Bulverde | 19,141 | 256 | $141k | $436k | 100% |
| 78266 | San Antonio | 7,338 | 185 | $147k | $587k | 80% |
| 78623 | Fischer | 1,645 | 73 | $117k | $450k | 92% |
Partly in Comal County
| In this county | ||||||
|---|---|---|---|---|---|---|
| 78130 | New Braunfels | 104,009 | 1,143 | $83k | $323k | 43% |
| 78154 | Schertz | 41,907 | 1,275 | $101k | $319k | 12% |
| 78015 | Boerne | 24,867 | 960 | $163k | $492k | 10% |
| 78666 | San Marcos | 88,583 | 461 | $55k | $307k | 4% |
| 78606 | Blanco | 7,272 | 30 | $95k | $438k | 4% |
| 78108 | Cibolo | 49,784 | 1,763 | $113k | $338k | 3% |
| 78006 | Boerne | 44,560 | 129 | $116k | $544k | 1% |
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).
Which ZIP codes cross the county line?
11 ZIP codes of Comal County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Comal | Elsewhere |
|---|---|---|
| 78130 | 43% | Guadalupe County56% |
| 78666 | 4% | Hays County78%; Guadalupe County16%; Caldwell County2% |
| 78108 | 3% | Guadalupe County87%; Bexar County10% |
| 78006 | 1% | Kendall County92%; Bexar County7% |
| 78154 | 12% | Bexar County56%; Guadalupe County32% |
| 78132 | 99% | |
| 78015 | 10% | Kendall County47%; Bexar County43% |
| 78070 | 82% | Kendall County10%; Blanco County8% |
| 78266 | 80% | Bexar County20% |
| 78606 | 4% | Blanco County75%; Kendall County21% |
| 78623 | 92% | Hays County8% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
PO Box and single-organization ZIP codes
Source: GeoNames postal codes (CC BY 4.0).
Which first three digits do Comal County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Comal County's ZIP codes use 4 prefixes: 780, 781, 782 and 786.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 780 | San Antonio, TX (SCF 780) | 3 | 59 |
| 781 | San Antonio, TX (SCF 780) | 8 | 46 |
| 782 | San Antonio, TX (SCF 780) | 1 | 85 |
| 786 | Austin, TX (SCF 786) | 3 | 75 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.