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zipcodes.pro — STATE/TX/COUNTY/LLANO

Llano County, TX ZIP codes

There are 8 ZIP codes in Llano County, TX, in 8 towns, from 76831 to 78672. The largest are 78639 (Kingsland), 78657 (Horseshoe Bay) and 78643 (Llano).

The county seat is Llano.

ZIP codes
8
Towns
8
County seat
Llano
County FIPS
48299
State
Texas
Population
22,424
Median household income
$67,530
Land area
934 sq mi
Area code
325

Llano County ZIP codes by town

Llano (county seat)
78643

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 Llano County ZIP codes

7683176885786077860978639786437865778672

The ZIP codes of Llano 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.

Llano County in numbers

About 22,424 people live in Llano County, in 10,765 households, the 107th most populous of Texas's 254 counties. The median household income is $67,530 a year, 14% below the Texas median of $78,476 (US: $80,734). The median owner-occupied home is valued at $356,500 (26% above the Texas median), and median gross rent is $998 a month. The median age is 57.4; 32.4% of adults 25 and over hold a bachelor's degree or higher (33.8% across Texas); the average commute takes 27 minutes.

Population22,424Llano22,424
Households10,765Llano10,765
Median age57.4Llano57.4Texas35.6US 38.9
Median household income$67,530Llano$67,530Texas$78,476US $80,734
Median home value$356,500Llano$356,500Texas$283,800US $332,700
Median gross rent$998Llano$998Texas$1,403US $1,413
Bachelor's degree or higher32.4%Llano32.4%Texas33.8%US 35.7%
Mean commute27.4 minLlano27.4 minTexas26.7 minUS 26.4 min
Population density24 / sq miLlano24 / 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 Llano County

Largest towns in Llano County
TownZIP codesPopulation
Kingsland 1 7,330
Horseshoe Bay 1 4,854
Llano 1 3,494
Buchanan Dam 1 1,513
Tow 1 145
Valley Spring 1 142
Bluffton 1 118

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 Llano County.

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

Every ZIP code in Llano County, with figures

ZIP codes in Llano County
ZIP City Type Population Median income Median home
76831 Castell , TX Standard 0 — —
76885 Valley Spring , TX Standard 142 — $787,200
78607 Bluffton , TX Standard 118 $58,594 $243,800
78609 Buchanan Dam , TX Standard 1,983 $64,418 $319,700
78639 Kingsland , TX Standard 8,719 $57,742 $245,500
78643 Llano , TX Standard 7,088 $68,365 $362,600
78657 Horseshoe Bay , TX Standard 7,591 $91,452 $483,200
78672 Tow , TX Standard 570 $52,813 $212,500

Cite this page

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

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