What county is Del Valle, TX in?

Del Valle, TX is mostly in Travis County, and Del Valle addresses also reach Bastrop County. Del Valle is a mailing address name, not a city, so the county depends on your street.

Del Valle at a glance

Which counties are Del Valle ZIP codes in?

Residents are per ZIP code area; the county split of each ZIP is by share of its land, because the Census Bureau does not publish ZIP residents by county in the file we use.

The table shows how ZIP 78617's land splits. Near a county line, check your address: the lookup runs in your browser and tells you how far you are from the line.

Is Del Valle a city?

No. Del Valle is the post office name for ZIP code 78617. It is not an incorporated city and not a census-designated place, so the Census Bureau publishes no boundary or population for Del Valle itself; the closest thing is the ZIP code areas named Del Valle.

That is why a search for Del Valle on our city lookup finds nothing: it only knows Census places. Use the ZIP code lookup or your location instead. Why ZIP codes and cities do not line up.

Cities and towns near Del Valle

• Garfield: 4.6 mi from the center of the Del Valle ZIP codes, Travis County
• Hornsby Bend: 6.4 mi from the center of the Del Valle ZIP codes, Travis County
• Cedar Creek: 7.1 mi from the center of the Del Valle ZIP codes, Bastrop County
• Wyldwood: 7.7 mi from the center of the Del Valle ZIP codes, Bastrop County
• Mustang Ridge: 8.9 mi from the center of the Del Valle ZIP codes, Travis County
• Austin: 14 mi from the center of the Del Valle ZIP codes, Travis County

About Travis County

County seat: Austin. FIPS code 48453. Population 1,307,625. All Travis County facts.

Sources: Census 2020 ZCTA-county relationship file (county land shares); ACS 2019-2023 5-year (ZIP area residents); GeoNames, CC BY 4.0 (post office names); Census TIGER/Line 2024 (place limits). Data as of November 1, 2026. Not affiliated with USPS or any government agency.