Ottawa County
Parcel & Property Data
About This Data
LandBrief holds 6,744 parcel records for Ottawa 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 Ottawa County assessor roll dated June 2025, loaded August 2026. See data sources for every county’s vintage.
Explore Ottawa County
Ottawa County by the Numbers
- Median parcel size
- 12.1 acres
measured from mapped boundaries - 90th-percentile parcel
- 160.1 acres
- County land area
- 461,267 acres
U.S. Census measurement - Communities
- 9
63.2% of parcels outside any incorporated place
Who Owns Ottawa County?
Share of the county’s 6,744 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 | 59.7% |
| Companies & organizations | 10.4% |
| Trusts & estates | 27.0% |
| Government | 2.4% |
| Other / unclassified | 0.5% |
The largest owner on record is CITY OF MINNEAPOLIS with 74 parcels — see the full landowner leaderboard.
Parcel Records (~6,744 total)
| Parcel ID | Owner | Address | City | Acreage |
|---|---|---|---|---|
| 0720451601022006000 | CITY OF DELPHOS | 110 N MAIN ST, Delphos, KS 67436 | Delphos | 0.16 † |
| 0720451601020008000 | MCKAIN, GLENDON E KAY E FAMILY TRUST, REV LIVING TRUST AGREEMENT | N WASHINGTON ST, Delphos, KS 67436 | Delphos | 0.16 † |
| 0720451601020006000 | KISER, CORY DEAN CHRISTINE MARIE | 206 W FIRST ST, Delphos, KS 67436 | Delphos | 0.18 † |
| 0720451602004003000 | DELPHOS COOPERATIVE ASSOC | 412 W FIRST ST, Delphos, KS 67436 | Delphos | 0.98 † |
| 0720451602004007000 | DELPHOS COOPERATIVE ASSOC | 408 W FIRST ST, Delphos, KS 67436 | Delphos | 0.14 † |
| 0720451601019006000 | DELPHOS COOPERATIVE ASSOC | 320 W FIRST ST, Delphos, KS 67436 | Delphos | 0.28 † |
| 0720451601019007000 | DELPHOS COOPERATIVE ASSOC | 314 W FIRST ST, Delphos, KS 67436 | Delphos | 0.20 † |
| 0720451601019008000 | DELPHOS COOPERATIVE ASSOC | 312 W FIRST ST, Delphos, KS 67436 | Delphos | 0.27 † |
| 0720451601019009000 | DELPHOS COOPERATIVE ASSOC | 308 W FIRST ST, Delphos, KS 67436 | Delphos | 0.30 † |
| 0720451601019010000 | DELPHOS COOPERATIVE ASSOC | 101 OAK ST, Delphos, KS 67436 | Delphos | 0.35 † |
Download Ottawa County parcel data
All 6,744 parcels in Ottawa County as a single file — free, no account needed. Shapefile, GeoJSON, GeoPackage, CSV and Parquet.
Get Ottawa County on FreeParcelData →Nearby counties
Frequently Asked Questions
How many parcels are in Ottawa County?
The Ottawa County assessor roll on file records 6,744 parcels across 9 communities, with 63.2% lying outside any incorporated place.
Who owns the most land in Ottawa County?
CITY OF MINNEAPOLIS holds 74 parcels, the most of any owner on record — the largest-landowners leaderboard ranks the top 25.
What is the typical parcel size in Ottawa County?
Measured from mapped boundaries, the median parcel is 12.1 acres, and nine parcels in ten are under 160.1 acres. Boundary-measured area closely tracks deeded acreage but is not the deed.
How much of Ottawa County is government-owned?
Government entities — federal, state, and local — hold 2.4% of the county’s parcels, classified from owner names on the roll.
How current is this data?
It comes from the Ottawa County assessor roll dated June 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 (9)
6,744 parcels across 9 communities in Ottawa County.