O'Brien County
Parcel & Property Data
About This Data
LandBrief holds 18,580 parcel records for O'Brien 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 O'Brien County assessor roll dated March 2026, loaded August 2026. See data sources for every county’s vintage.
Explore O'Brien County
O'Brien County by the Numbers
- Median parcel size
- 13 acres
measured from mapped boundaries - 90th-percentile parcel
- 40.3 acres
- County land area
- 366,742 acres
U.S. Census measurement - Communities
- 9
62.7% of parcels outside any incorporated place
Who Owns O'Brien County?
Share of the county’s 18,580 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 | 62.7% |
| Companies & organizations | 13.3% |
| Trusts & estates | 22.1% |
| Government | 1.0% |
| Other / unclassified | 1.0% |
The largest owner on record is SANBORN, CITY OF with 61 parcels — see the full landowner leaderboard.
Parcel Records (~18,580 total)
| Parcel ID | Owner | Address | City | Acreage |
|---|---|---|---|---|
| 0012243101 | SKYLINE DAIRY LLC | 5276 430TH ST | Unincorporated | 320.00 |
| 0016042300 | EBEL, JEFFREY D 90.46% & GEORGETTE 9.54% | — | Unincorporated | 180.21 |
| 0016042300 | EBEL, JEFFREY D 90.46% & GEORGETTE 9.54% | — | Unincorporated | 180.21 |
| 0010311101 | RAUSCH, MICHAEL L & JILL R | — | Unincorporated | 161.54 |
| 0013023300 | ROORDA DAIRY, LLC | 5128 460TH ST | Unincorporated | 160.00 |
| 0010312102 | PAULSEN, JOYCE L REV TRUST | — | Unincorporated | 155.18 |
| 0001092101 | METT TRUST | — | Unincorporated | 152.36 |
| 0002314100 | HOFLAND, JAY A & CARLA S ETAL | — | Unincorporated | 150.81 |
| 0001191100 | LORCH 0A36 INC | — | Unincorporated | 150.57 |
| 0011201250 | SKYLINE DAIRY LLC | — | Unincorporated | 150.35 |
Nearby counties
Frequently Asked Questions
How many parcels are in O'Brien County?
The O'Brien County assessor roll on file records 18,580 parcels across 9 communities, with 62.7% lying outside any incorporated place.
Who owns the most land in O'Brien County?
SANBORN, CITY OF holds 61 parcels, the most of any owner on record — the largest-landowners leaderboard ranks the top 25.
What is the typical parcel size in O'Brien County?
Measured from mapped boundaries, the median parcel is 13 acres, and nine parcels in ten are under 40.3 acres. Boundary-measured area closely tracks deeded acreage but is not the deed.
How much of O'Brien County is government-owned?
Government entities — federal, state, and local — hold 1.0% of the county’s parcels, classified from owner names on the roll.
How current is this data?
It comes from the O'Brien County assessor roll dated March 2026. 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 (9)
18,580 parcels across 9 communities in O'Brien County.