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zipcodes.pro — STATE/TX/COUNTY/BLANCO

Blanco County, TX ZIP codes

Blanco County, TX has 4 ZIP codes, in 4 towns: 78606, 78636, 78663 and 78635.

The county seat is Johnson City.

ZIP codes
4
Towns
4
County seat
Johnson City
County FIPS
48031
State
Texas
Population
12,446
Median household income
$92,425
Land area
709 sq mi

Blanco County ZIP codes by town

Johnson City (county seat)
78636

Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.

Map of Blanco County ZIP codes

78606786357863678663

The ZIP codes of Blanco County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Blanco County in numbers

About 12,446 people live in Blanco County, in 5,166 households, the 152nd most populous of Texas's 254 counties. The median household income is $92,425 a year, 18% above the Texas median of $78,476 (US: $80,734). The median owner-occupied home is valued at $483,500 (70% above the Texas median), and median gross rent is $1,017 a month. The median age is 51.5; 35.4% of adults 25 and over hold a bachelor's degree or higher (33.8% across Texas); the average commute takes 29 minutes.

Population12,446Blanco12,446
Households5,166Blanco5,166
Median age51.5Blanco51.5Texas35.6US 38.9
Median household income$92,425Blanco$92,425Texas$78,476US $80,734
Median home value$483,500Blanco$483,500Texas$283,800US $332,700
Median gross rent$1,017Blanco$1,017Texas$1,403US $1,413
Bachelor's degree or higher35.4%Blanco35.4%Texas33.8%US 35.7%
Mean commute29.3 minBlanco29.3 minTexas26.7 minUS 26.4 min
Population density18 / sq miBlanco18 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.

Largest towns in Blanco County

Largest towns in Blanco County
TownZIP codesPopulation
Blanco 1 2,175
Johnson City 1 1,921
Hye 1 92
Round Mountain 1 81

Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.

Neighbouring counties

Counties that share a ZIP code with Blanco County.

Not sure you are in Blanco County? What county am I in? answers from your location, near a county line included.

Every ZIP code in Blanco County, with figures

ZIP codes in Blanco County
ZIP City Type Population Median income Median home
78606 Blanco , TX Standard 7,272 $94,817 $437,600
78635 Hye , TX Standard 92 $106,458 —
78636 Johnson City , TX Standard 4,134 $72,663 $532,600
78663 Round Mountain , TX Standard 503 $168,125 $356,800

Cite this page

zipcodes.pro. “Blanco County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/tx/county/blanco

Underlying data is public domain or openly licensed — sources, vintages and licences.