Blanco County, Texas ZIP codes
4 ZIP codes are in Blanco County, plus 4 that cross in from neighboring counties.
- ZIP codes
- 4
- Population in these ZIPs
- 12,001
- Avg. median income
- $90,300population-weighted
- Cities & towns
- 4
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ZIP codes in Blanco County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 78606 | Blanco | 7,272 | $94,817 | $540,300 |
| 78635 | Hye | 92 | $106,458 | — |
| 78636 | Johnson City | 4,134 | $72,663 | $596,400 |
| 78663 | Round Mountain | 503 | $168,125 | $835,400 |
ZIP codes partly in Blanco County
These ZIP codes are mostly in a neighboring county but cover part of Blanco County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 78070 | Spring Branch | Comal County | 20,200 | $115,175 | $572,100 |
| 78620 | Dripping Springs | Hays County | 22,860 | $153,477 | $671,500 |
| 78669 | Spicewood | Travis County | 12,592 | $128,000 | $691,400 |
| 78676 | Wimberley | Hays County | 15,822 | $87,344 | $555,600 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities and towns in Blanco County
Nearby counties
Frequently asked questions
How many ZIP codes are in Blanco County, Texas?
4 ZIP codes are mainly in Blanco County, and 4 more ZIP codes from neighboring areas reach partly into it.
What cities are in Blanco County?
ZIP codes in Blanco County use the city names Blanco, Hye, Johnson City and Round Mountain.