McMullen County
Parcel & Property Data
About This Data
LandBrief holds 3,499 parcel records for McMullen 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 McMullen County assessor roll dated March 2021, loaded August 2026. See data sources for every county’s vintage.
Explore McMullen County
- Largest landownersWho holds the most land in McMullen County, by total acreage.
- Largest parcelsThe biggest individual tracts in the county, ranked by size.
- Highest-value parcelsThe most valuable properties on the roll, by assessed market value.
- Out-of-state ownersWho owns McMullen County from somewhere else, and where they live.
McMullen County by the Numbers
- Median parcel size
- 63.2 acres
measured from mapped boundaries - 90th-percentile parcel
- 633.8 acres
- County land area
- 729,472 acres
U.S. Census measurement - Communities
- 8
85.5% of parcels outside any incorporated place - Median assessed value
- $133,840
100% of parcels carry a value - Out-of-state owners
- 5.8% of parcels
by owner mailing address
Who Owns McMullen County?
Share of the county’s 3,499 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 | 49.6% |
| Companies & organizations | 42.0% |
| Trusts & estates | 3.0% |
| Government | 1.4% |
| Other / unclassified | 3.9% |
The largest owner on record is NAYLOR FAMILY RANCH HOLDINGS, LTD with 92 parcels — see the full landowner leaderboard.
Parcel Records (~3,499 total)
| Parcel ID | Owner | Address | City | Acreage | Market Value |
|---|---|---|---|---|---|
| 3295 | DILWORTH BLACKSTONE & FRANCES | — | Unincorporated | 6354.40 | $8,876,246 |
| 5012 | BAR FORK BAR PARTNERS LTD | — | Unincorporated | 2990.86 | $4,742,927 |
| 79796 | DILWORTH BLACKSTONE & FRANCES | — | Unincorporated | 2951.60 | $4,014,176 |
| 1212 | SIDDONS RANCH PARTNERS, LTD | — | Tilden | 2654.92 | $5,021,668 |
| 2673 | PALOMA CATTLE CO INC | — | Unincorporated | 2579.55 | $4,705,536 |
| 2673 | PALOMA CATTLE CO INC | — | Unincorporated | 2579.55 | $4,705,536 |
| 2673 | PALOMA CATTLE CO INC | — | Unincorporated | 2579.55 | $4,705,536 |
| 2673 | PALOMA CATTLE CO INC | — | Unincorporated | 2579.55 | $4,705,536 |
| 1993 | RANCHO TRES HIJOS, L.P. | — | Unincorporated | 2381.72 | $3,789,965 |
| 1993 | RANCHO TRES HIJOS, L.P. | — | Unincorporated | 2381.72 | $3,789,965 |
Download McMullen County parcel data
All 3,499 parcels in McMullen County as a single file — free, no account needed. Shapefile, GeoJSON, GeoPackage, CSV and Parquet.
Get McMullen County on FreeParcelData →Nearby counties
Frequently Asked Questions
How many parcels are in McMullen County?
The McMullen County assessor roll on file records 3,499 parcels across 8 communities, with 85.5% lying outside any incorporated place.
Who owns the most land in McMullen County?
NAYLOR FAMILY RANCH HOLDINGS, LTD holds 92 parcels, the most of any owner on record — the largest-landowners leaderboard ranks the top 25.
What is the typical parcel size in McMullen County?
Measured from mapped boundaries, the median parcel is 63.2 acres, and nine parcels in ten are under 633.8 acres. Boundary-measured area closely tracks deeded acreage but is not the deed.
How much of McMullen County is owned from out of state?
5.8% of parcels list an owner mailing address outside TX, per the county’s own records.
How much of McMullen County is government-owned?
Government entities — federal, state, and local — hold 1.4% of the county’s parcels, classified from owner names on the roll.
How current is this data?
It comes from the McMullen County assessor roll dated March 2021. 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 (8)
3,499 parcels across 8 communities in McMullen County.