ZIP code 78609: Buchanan Dam, TX
78609 is a ZIP code in Buchanan Dam, Texas, mainly in Llano County. About 1,983 people live here.
- Population
- 1,983
- Median household income
- $64,418
- Typical home value
- $355,000-2.3% in 12 months
- Median rent
- $651gross, per month
- Median age
- 60.4
- Homeowners
- 73.2%of occupied homes
Shaded: ZIP code 78609's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 78609 details
| City | Buchanan Dam |
|---|---|
| State | Texas |
| County | Llano County |
| Metro area | Not in a metro or micro area |
| Time zone | Central Time (UTC−6), observes daylight saving time |
| Type | Standard (delivery area) |
| Land area | 15.9 sq mi, plus 12 sq mi of water |
| Population density | 125 people per sq mi |
| Bachelor's degree or higher | 25.2% of adults 25+ |
| Average commute | 30.6 minutes |
| Center coordinates | 30.74692, -98.45137 |
Median rent in 78609 by bedrooms
| Size | Median gross rent |
|---|---|
| 1 bedroom | $685/mo |
| 2 bedrooms | $593/mo |
Gross rent includes utilities paid by the tenant. ACS 2020–2024; sizes with too few rentals to estimate are left out.
ZIP codes near 78609
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 78607 | Bluffton, TX | 5.5 mi | 118 |
| 78639 | Kingsland, TX | 6.3 mi | 8,719 |
| 78672 | Tow, TX | 9.6 mi | 570 |
| 78611 | Burnet, TX | 10.6 mi | 14,560 |
| 76824 | Bend, TX | 13.2 mi | 0 |
| 78657 | Horseshoe Bay, TX | 15.4 mi | 7,591 |
| 78643 | Llano, TX | 16.3 mi | 7,088 |
| 78654 | Marble Falls, TX | 18.7 mi | 20,650 |
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
Buying a home in 78609?
A typical home in ZIP code 78609 is worth about $355,000 (Zillow Home Value Index). The median household here earns $64,418 a year. See what buying here would cost per month, with Texas average taxes and insurance filled in.
Monthly payment for a $355,000 homeWhat can a $64,418 income afford?Rental property numbers
About ZIP code 78609
What city is ZIP code 78609?
ZIP code 78609 is in Buchanan Dam, TX, in Llano County.
What county is ZIP code 78609 in?
78609 is mainly in Llano County, Texas.
What is the population of ZIP code 78609?
About 1,983 people live in ZIP code 78609, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 78609 in?
78609 is in Central Time (UTC−6). It observes daylight saving time.