Collin County

Parcel & Property Data

336,343Total Parcels

—Avg. Market Value

455,049Total Acres

About This Data

LandBrief holds 336,343 parcel records for Collin County, sourced from county records. Each includes the parcel boundary, and — where the county publishes them — owner, situs address, acreage, assessed values and legal description.

Data from the Collin County assessor roll dated December 2019, loaded August 2026. See data sources for every county’s vintage.

Explore Collin County

Largest landownersWho holds the most land in Collin County, by total acreage.
Largest parcelsThe biggest individual tracts in the county, ranked by size.
Out-of-state ownersWho owns Collin County from somewhere else, and where they live.

Collin County by the Numbers

Median parcel size: 0.20 acres
measured from mapped boundaries
90th-percentile parcel: 1.4 acres
County land area: 538,473 acres
U.S. Census measurement
Communities: 47
1.0% of parcels outside any incorporated place
Out-of-state owners: 3.7% of parcels
by owner mailing address

Who Owns Collin County?

Share of the county’s 336,343 parcels by the kind of owner on record. Classified from owner names, so the boundaries are approximate; an entity the rules cannot place counts as an individual.

Owner type	Share of parcels
Individuals	82.1%
Companies & organizations	13.9%
Trusts & estates	3.1%
Government	0.7%
Other / unclassified	0.2%

The largest owner on record is USA with 1,024 parcels — see the full landowner leaderboard.

Parcel Records (~336,343 total)

Showper page

Parcel ID	Owner	Address	City	Acreage
R-6475-000-0010-1	DALLAS CITY OF	—	Wylie	873.00
R-6338-002-0500-1	USA	—	Lavon	865.13
R-6638-001-0010-1	USA	—	Lavon	850.57
R-6239-001-0010-1	USA	—	Wylie	792.84
R-6166-002-1370-1	MM PRINCETON 854 LLC	—	Princeton	771.19
R-6679-001-0320-1	USA	—	Unincorporated	763.33
R-7049-000-0690-1	USA	—	Princeton	752.67
R-6951-001-0590-1	USA	—	Unincorporated	723.42
R-6951-002-0600-1	USA	—	Unincorporated	683.07
R-6794-001-0010-1	DALLAS CITY OF	—	Dallas	663.69

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Download Collin County parcel data

All 336,343 parcels in Collin County as a single file — free, no account needed. Shapefile, GeoJSON, GeoPackage, CSV and Parquet.

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Frequently Asked Questions

How many parcels are in Collin County?

The Collin County assessor roll on file records 336,343 parcels across 47 communities, with 1.0% lying outside any incorporated place.

Who owns the most land in Collin County?

USA holds 1,024 parcels, the most of any owner on record — the largest-landowners leaderboard ranks the top 25.

What is the typical parcel size in Collin County?

Measured from mapped boundaries, the median parcel is 0.20 acres, and nine parcels in ten are under 1.4 acres. Boundary-measured area closely tracks deeded acreage but is not the deed.

How much of Collin County is owned from out of state?

3.7% of parcels list an owner mailing address outside TX, per the county’s own records.

How much of Collin County is government-owned?

Government entities — federal, state, and local — hold 0.7% of the county’s parcels, classified from owner names on the roll.

How current is this data?

It comes from the Collin County assessor roll dated December 2019. Counties deliver on their own schedules; the methodology page explains how records are processed and the data sources page tracks every county’s vintage.

Browse by City (47)

336,343 parcels across 47 communities in Collin County.