County hub rural Texas

Hays County, TX

Aggregated demographic, housing, and geographic context for the 7 ZIP codes inside Hays County, drawn from public Census ACS and SimpleMaps data.

ZIP codes
7
in this county
Total population
254,303
across all listed ZIPs
Cities
7
distinct city/town names
Avg density
144
people / sq mi
Avg median income
$68,084
household, ACS
Avg home value
$254,300
owner-occupied

ZIP codes in Hays County

ZIPCityPopulationDensityMedian income
78666 San Marcos 83,858 168 $52,432
78640 Kyle 63,902 275 $83,735
78610 Buda 41,681 166
78737 Austin 24,783 263
78620 Dripping Springs 18,564 41
78676 Wimberley 15,241 35
78619 Driftwood 6,274 61

About Hays County

Counties are the workhorse unit of American local government — they administer property taxes, run the courts and sheriff’s office, manage many road and library systems, and in much of the country they collect public health and zoning data that ZIP codes don’t. Hays County in Texas contains roughly 7 ZIP codes spread across 7 distinct cities and unincorporated communities, with an aggregate population of about 254,303. Reading those ZIPs together at the county level smooths over neighborhood-by-neighborhood noise and surfaces the broader economic and demographic shape of the area. For block-level detail, drill into any individual ZIP profile or compare against the wider Texas index.

The average density across listed ZIPs sits at roughly 144, which classifies the county overall as a rural environment. That label is a generalization — nearly every county contains both a relatively dense core and quieter outlying ZIPs, and the gap between them is often what determines where you actually want to live or open a business. Average median household income in our enriched ZIPs lands near $68,084, with average owner-occupied home values around $254,300; both numbers move dramatically as you cross from one ZIP to the next, so use the table above as a sorting tool, not a verdict.

If you’re moving into Hays County, the county itself is also where most of your real-life paperwork will land — vehicle registration, voter registration, property recording, and school district enrollment in many states. Knowing the county that contains your prospective ZIP makes it much easier to look up the right tax assessor, election office, or school district website. Our relocation guide walks through the order in which to tackle these handoffs after a move.

For service-area planning, the county is also where most US business licensing and many sales-tax rules are administered. Service businesses scoping Hays County should pair this aggregate view with the individual ZIP profiles to identify the densest, highest-income pockets first, then expand outward along whatever transportation corridor matches their delivery model. For a wider commuter-shed view that crosses county lines, see the Austin–Round Rock–Georgetown metro hub.