ZIP code 78721

ZIP 78721 is a mid-size town in Travis County, Texas, with 10,728 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #789 of 1,989 ranked by population — larger than 60% of them. The median age here is 34.1 years against 39.1 nationally, a slightly younger profile than the country as a whole. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.

Households in ZIP 78721 earn a median of $103,285 a year, 31.5% above the national figure of $78,538. This figure covers the household, not the worker: two people on ordinary wages at one address outrank a single professional in the same table. Poverty reaches 18.6% of residents here, well above the 12.4% national rate, which is the single clearest signal in this dataset that median income here is carried by a narrow band of households.

The typical owner-occupied home in ZIP 78721 is valued at $503,400, 65.9% above the national figure, while median gross rent runs $1,616 a month, 14.9% above the national figure, or roughly $19,392 across a full year. A household on the local median income would put about 18.8% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is cheap relative to what people here earn. The home-price-to-income ratio works out to 4.9×, against roughly 3.9× nationally, so buying is harder here than in the average US market. 58.8% of occupied homes are owner-occupied versus 65% nationally, so the market leans more heavily on renters. Gross rent folds in the utilities a tenant pays separately, so it is closer to the real monthly outlay than a headline rent figure.

Median income runs above the national figure while poverty also runs above it — a split distribution, not a uniformly comfortable place. Averages hide that; the two numbers together do not.

No figure on this page is estimated by us; each one comes straight from the published ACS tables for this area. Small-area estimates still carry wider margins of error than state or national figures, so check the linked ACS tables before relying on them for lending, appraisal or legal work.

ZIP 78721 is tabulated inside Travis County, Texas, one of 48 ZIP areas the Census publishes for that county and 1,989 across Texas. This is a mid-sized suburban ZIP inside a county that is split across many delivery areas. County assignment on this page follows the largest share of the ZIP's land area, which matters where a delivery route crosses a county line: mail addressed to 78721 can be handled by a post office in a neighbouring county even though the tabulation area is filed here.

Against its own county, 78721 reports a median household income of $103,285, close to the $102,799 county median, and 52% above the $68,103 typical TX ZIP. Owner-occupied homes are valued at a median of $503,400, 7% below the county figure and 158% above the statewide ZIP median. Rent is reported gross — the contract amount plus tenant-paid utilities — at $1,616 a month, which is why it reads higher than the advertised rent on a listing for the same unit.

Texas charges 6.25% statewide, and local governments overlapping 78721 may add county, city or special-district levies on top. We publish the state floor for this ZIP rather than guessing a combined figure, because ZIP boundaries and taxing-district boundaries were drawn for different purposes and do not line up.

Everything above comes from the Census Bureau American Community Survey 2019-2023 ACS 5-year estimates for this ZIP Code Tabulation Area, with sales tax rates traced to the state revenue agency. Five-year estimates pool sixty months of responses, so they are stable enough to compare 78721 with its neighbours but always trail the current year, and any value the Census suppressed for sample size is shown as unpublished rather than filled in with a model.