Rock County
Parcel & Property Data
About This Data
LandBrief holds 8,180 parcel records for Rock 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 Rock County assessor roll dated August 2025, loaded August 2026. See data sources for every county’s vintage.
Explore Rock County
Rock County by the Numbers
- Median parcel size
- 4 acres
measured from mapped boundaries - 90th-percentile parcel
- 149.3 acres
- County land area
- 308,774 acres
U.S. Census measurement - Communities
- 12
40.7% of parcels outside any incorporated place - Out-of-state owners
- 15.3% of parcels
by owner mailing address
Who Owns Rock County?
Share of the county’s 8,180 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 | 78.9% |
| Companies & organizations | 10.6% |
| Trusts & estates | 8.8% |
| Government | 0.9% |
| Other / unclassified | 0.8% |
The largest owner on record is LUVERNE/CITY OF with 108 parcels — see the full landowner leaderboard.
Parcel Records (~8,180 total)
| Parcel ID | Owner | Address | City | Acreage |
|---|---|---|---|---|
| 01-0001-100 | VANDER MATEN/STEVEN R & LISA R | — | Unincorporated | 82.09 † |
| 01-0001-200 | VANDER MATEN/STEVEN R & LISA R | — | Unincorporated | 82.64 † |
| 01-0001-300 | VANDER MATEN/STEVEN R & LISA R | — | Unincorporated | 4.79 † |
| 01-0002-100 | ALSUM/KATHERYN B/TRUSTEE | — | Unincorporated | 60.28 † |
| 01-0002-200 | ALSUM/KATHERYN B/TRUSTEE | — | Unincorporated | 59.82 † |
| 01-0003-000 | ZWART/PRESTON/& | — | Unincorporated | 161.13 † |
| 01-0005-000 | VAN HULZEN/ROSS A/& | — | Unincorporated | 139.53 † |
| 01-0006-000 | KREUN/VERLA J/TRUSTEE OF | — | Unincorporated | 41.51 † |
| 01-0007-100 | RYLAARSDAM/ARLYN | — | Unincorporated | 74.52 † |
| 01-0007-200 | RYLAARSDAM/ARLYN | — | Unincorporated | 82.13 † |
Download Rock County parcel data
All 8,180 parcels in Rock County as a single file — free, no account needed. Shapefile, GeoJSON, GeoPackage, CSV and Parquet.
Get Rock County on FreeParcelData →Nearby counties
Frequently Asked Questions
How many parcels are in Rock County?
The Rock County assessor roll on file records 8,180 parcels across 12 communities, with 40.7% lying outside any incorporated place.
Who owns the most land in Rock County?
LUVERNE/CITY OF holds 108 parcels, the most of any owner on record — the largest-landowners leaderboard ranks the top 25.
What is the typical parcel size in Rock County?
Measured from mapped boundaries, the median parcel is 4 acres, and nine parcels in ten are under 149.3 acres. Boundary-measured area closely tracks deeded acreage but is not the deed.
How much of Rock County is owned from out of state?
15.3% of parcels list an owner mailing address outside MN, per the county’s own records.
How much of Rock County is government-owned?
Government entities — federal, state, and local — hold 0.9% of the county’s parcels, classified from owner names on the roll.
How current is this data?
It comes from the Rock County assessor roll dated August 2025. 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 (12)
8,180 parcels across 12 communities in Rock County.