Sioux County
Parcel & Property Data
About This Data
LandBrief holds 32,503 parcel records for Sioux 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 Sioux County assessor roll dated May 2026, loaded August 2026. See data sources for every county’s vintage.
Explore Sioux County
Sioux County by the Numbers
- Median parcel size
- 4.4 acres
measured from mapped boundaries - 90th-percentile parcel
- 39.3 acres
- County land area
- 491,463 acres
U.S. Census measurement - Communities
- 15
60.9% of parcels outside any incorporated place
Who Owns Sioux County?
Share of the county’s 32,503 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 | 57.3% |
| Companies & organizations | 16.0% |
| Trusts & estates | 22.9% |
| Government | 1.2% |
| Other / unclassified | 2.6% |
The largest owner on record is SIOUX COUNTY with 225 parcels — see the full landowner leaderboard.
Parcel Records (~32,503 total)
| Parcel ID | Owner | Address | City | Acreage |
|---|---|---|---|---|
| 0104201002 | ZOMERMAAND, ARNOLD & ELIZABETH REV TRUST | — | Unincorporated | 57.81 |
| 0102126001 | YAGER, SAM JUNIOR DE REV TR1/2 YAGER, ANN C. DE REV TR 1/2 | — | Unincorporated | 57.55 |
| 0103126001 | HULSTEIN LAND LLC | — | Unincorporated | 57.12 |
| 0103201001 | DENEKAS, KENNETH D. REV TR | — | Unincorporated | 57.07 |
| 0104226001 | HULSTEIN FEEDYARDS LLC | 2721 BEECH AVE INWOOD | Unincorporated | 56.47 |
| 0102201004 | BROWN, DAVID REV TR | — | Unincorporated | 55.24 |
| 0105126001 | ZOMERMAAND, ARLEN D. LVG TR | — | Unincorporated | 55.10 |
| 0206126004 | BEEK, GALEN E. & SHIRLEY K. VAN / JT | — | Unincorporated | 54.33 |
| 0101101001 | GINKEL, JOHN VAN REV TRUST | — | Unincorporated | 53.65 |
| 0101126002 | GINKEL, JOHN VAN REV TRUST | — | Unincorporated | 52.55 |
Download Sioux County parcel data
All 32,503 parcels in Sioux County as a single file — free, no account needed. Shapefile, GeoJSON, GeoPackage, CSV and Parquet.
Get Sioux County on FreeParcelData →Nearby counties
Frequently Asked Questions
How many parcels are in Sioux County?
The Sioux County assessor roll on file records 32,503 parcels across 15 communities, with 60.9% lying outside any incorporated place.
Who owns the most land in Sioux County?
SIOUX COUNTY holds 225 parcels, the most of any owner on record — the largest-landowners leaderboard ranks the top 25.
What is the typical parcel size in Sioux County?
Measured from mapped boundaries, the median parcel is 4.4 acres, and nine parcels in ten are under 39.3 acres. Boundary-measured area closely tracks deeded acreage but is not the deed.
How much of Sioux County is government-owned?
Government entities — federal, state, and local — hold 1.2% of the county’s parcels, classified from owner names on the roll.
How current is this data?
It comes from the Sioux County assessor roll dated May 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 (15)
32,503 parcels across 15 communities in Sioux County.