Residential delivery area · Texas
ZIP Code 78070: Spring Branch, TX
ZIP code 78070 uses the postal name Spring Branch, Texas and lies mostly in Comal County (82% of its land), reaching into Kendall County and Blanco County (Census 2020 ZIP-county file). About 20,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $115,175 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Canyon Lake (21%) and Spring Branch (2%), and 2% in smaller places; 76% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Spring Branch · its only residential ZIP
- County
- Comal County (82%); Kendall County (10%); Blanco County (8%)
- Census places
- Canyon Lake (21%) census-designated place; Spring Branch (2%)
- Metro area
- San Antonio-New Braunfels, TX
- House district
- TX-21 119th Congress
- State
- Texas
- Time zone
- Central
- Land area
- 133.3 sq mi · 152 people per sq mi
Where is ZIP code 78070?
78070 centers on 29.892°, -98.408° and covers 133.3 square miles of land plus 1.4 of water. It borders 8 ZIP codes: 78004, 78163, 78133, 78027, 78623, 78606, 78132, 78006.
The map draws ZIP code areas only. For the streets inside 78070, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 78070 compare with the rest of Comal County?
| Measure | 78070 | In Comal County | In TX |
|---|---|---|---|
| People (ACS 2020-2024) | 20,200 | 9th of 13 | 581st of 1,990 |
| Median household income | $115k | 6th of 12 | 134th of 1,172 |
| Median home value | $517k | 4th of 13 | 96th of 1,172 |
Its median household income is higher than in 89% of U.S. residential ZIP codes, and it is denser than 59% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 78070?
The 2020 Census counted 20,618 people in 78070; the ACS, which samples households over 2020-2024, estimates 20,200. Between the 2010 and 2020 censuses its population grew 41.0% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 20,200
- 2020 Census count
- 20,618+41.0% since 2010 (14,618)
- Households
- 7,621
- Median age
- 46.2
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 78070?
Of the 20,200 people the ACS estimates in 78070, 20.5% are under 18 and 21.5% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (70.3%), then Hispanic or Latino (22.7%).
- Under 1820.5%
- 18 to 6458.1%
- 65 and older21.5%
- White, not Hispanic70.3%
- Hispanic or Latino22.7%
- Other or two or more4.6%
- Black, not Hispanic2.0%
- Asian, not Hispanic0.5%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 78070 earn?
Median household income is $115,175 (ACS 2020-2024), the 6th highest of the 12 ranked ZIP codes in Comal County. It is not measurably different from 2015-2019 ($109,304 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $115,175±$12,467
- Income per person
- $57,010
- Below the poverty line
- 6.2%
- Unemployed (of the labor force)
- 3.5%
- Adults 25+ with a bachelor's degree
- 41.2%
- Adjusted gross income per tax return, 2022
- $133,50810,930 returns; wages 52% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 78070?
FHFA's house price index for 78070, built from repeat sales and appraisals of the same homes, rose 79% from 2015 to 2025 and rose 42% from 2020 to 2025, and moved −5.9% in 2025.
- Median home value (owners' estimate)
- $516,600
- Median gross rent
- $1,318
- Homes owned by their occupants
- 89.2%
- Housing units
- 8,041
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 78070?
528 business establishments had a location in this ZIP code in 2023, 133 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction101
- Professional, scientific, and technical services84
- Retail trade50
- Accommodation and food services47
- Health care and social assistance44
- Other services (except public administration)39
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 78070?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 78004 | Bergheim | 547 | $165k | 8.1 mi |
| 78163 | Bulverde | 19,141 | $141k | 8.8 mi |
| 78133 | Canyon Lake | 21,959 | $84k | 9.4 mi |
| 78027 | Kendalia | 318 | $111k | 9.5 mi |
| 78623 | Fischer | 1,645 | $117k | 12.3 mi |
| 78606 | Blanco | 7,272 | $95k | 13.7 mi |
| 78132 | New Braunfels | 40,953 | $135k | 16.0 mi |
| 78006 | Boerne | 44,560 | $116k | 17.8 mi |
| 78261 | San Antonio | 26,657 | $148k | 14.0 mi (near) |
| 78260 | San Antonio | 38,023 | $155k | 14.3 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.