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Austin · Round Rock

Round Rock.

North of the city line in Williamson County, which means a different tax structure and a different set of school districts. Predominantly detached subdivision construction from the 1990s onward.

Old Post Office Building (1878), Round Rock. Photo: Larry D. Moore, CC BY 4.0, via Wikimedia Commons. Cropped, resized and re-encoded.

Live market data  /  ZIP 78664, 78665, 78681

Two sources. Not one.

Refreshed weekly and dated. Where they disagree, that disagreement is the useful part — so we publish it instead of averaging it away.

+3%Asking over value

Homes here are modeled at $407,455 while the ones currently listed are asking a median of $419,833 — a spread worth knowing before you write an offer.

Zillow models every home in these ZIPs; Realtor.com takes the median of the homes currently listed. Part of any gap is seller pricing and part is that active inventory is not a representative sample of the area.

Zillow Research

Methodology

A model of what every home in these ZIPs is worth, listed or not.

Typical home value
$407,455
2026-07-31 · average of 3 ZIPs
Homes for sale
288
2026-07-31 · average of 3 ZIPs
Median days to pending
62 days
2026-07-31 · single ZIP

ZIP-level data provided by Zillow Research (zillow.com/research/data). Neighborhood figures are averaged across the ZIP codes listed for each area and are not a median for the neighborhood itself.

Realtor.com

Methodology

What the homes actually on the market here are asking, right now.

Median asking price
$419,833
2026-08-31 · average of 3 ZIPs
Active listings
220
2026-08-31 · average of 3 ZIPs
Median days on market
62 days
2026-08-31 · average of 3 ZIPs

Data from the Realtor.com Real Estate Data Library (realtor.com/research/data), a free public dataset. Median LIST price — not a sold price and not an appraisal.

Neither is an appraisal and neither is Unlock MLS data. For what a specific property is worth, ask an agent. See the metro-level comparison →

Local detail
Dominant type
Detached subdivision
Sprout Realty (pending MLS feed) · 2026-07-31
Median year built
1996
Williamson CAD · 2026-06-30
School district
Round Rock ISD
TEA · 2026-08-01
The area

What defines Round Rock.

Objective characteristics of the place. We publish the same categories for every area we cover.

  • Williamson County rather than Travis, so the taxing entities and rate differ
  • Predominantly detached construction from the 1990s onward
  • Direct access to I-35 and the SH-45 and SH-130 toll corridors
Other Austin areas

The same categories of area information are published for every neighborhood we cover and provided to every visitor without regard to any protected characteristic. Sprout Realty does not steer clients toward or away from any area.