Round Rock parcel data

Parcel records for Round Rock, Texas: owners, assessed values, sales and boundaries.
Parcels
39,810
Last updated
Sep 28, 2026
Zoning
Not yet
County
Williamson County

Round Rock spans Williamson County and Travis County.

What each Round Rock parcel record includes

  • Parcel number and boundary
  • Owners of record and mailing address
  • Assessed and market value
  • Most recent sale: price, date and deed
  • Lot size, land use and property class
  • Building: year built, area and units
  • Legal description
  • Zoning district
Example parcel · Round Rock2.14 ac
Parcel number0651-45-8213
Owner of recordExample Holdings LLC
Market value 2026$486,300
Last sale$412,000 · 2021
Land useSingle family
Year built1998

Get Round Rock parcels through the API

Search by address, owner, lot size, value or sale date.

Get an API keyRead the API docs 
curl -G 'https://api.placestack.com/v1/parcel' \
  -H "Authorization: Bearer $PLACESTACK_API_KEY" \
  --data-urlencode 'jurisdiction=jur_01m3n2c1wwfnmvf66p4e71n3gs'

Frequently asked questions

How many parcels are in Round Rock?
Placestack has 39,810 parcel records for Round Rock, Texas.
What does a Round Rock parcel record include?
The parcel number and boundary, owners of record and their mailing address, assessed and market value, the most recent sale, lot size, land use, the main building and the legal description.
Is Round Rock zoning available?
Not yet for Round Rock. Parcel records are available now.
How do I get Round Rock parcel data?
Through the API, the MCP server or the map in the console.

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