Delaware County
Parcel & Property Data
About This Data
LandBrief holds 17,609 parcel records for Delaware 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 Delaware County assessor roll dated May 2022, loaded August 2026. See data sources for every county’s vintage.
Explore Delaware County
Delaware County by the Numbers
- Median parcel size
- 1.4 acres
measured from mapped boundaries - 90th-percentile parcel
- 79.5 acres
- County land area
- 369,717 acres
U.S. Census measurement - Communities
- 19
36.1% of parcels outside any incorporated place
Who Owns Delaware County?
Share of the county’s 17,609 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 | 78.1% |
| Companies & organizations | 11.5% |
| Trusts & estates | 9.1% |
| Government | 0.7% |
| Other / unclassified | 0.6% |
The largest owner on record is Cooey Marcheta R et al with 167 parcels — see the full landowner leaderboard.
Parcel Records (~17,609 total)
| Parcel ID | Owner | Address | City | Acreage |
|---|---|---|---|---|
| 310190000140 | Department of Natural Resources (DNR) | 310TH ST | Unincorporated | 353.49 |
| 035280001300 | Knipper Dennis & Janice | 2445 147TH ST | Greeley | 239.00 |
| 530000104010 | Big River United Energy LLC | 3252 VINE RD | Dyersville | 219.23 |
| 200050001900 | Tauke Raymond A & Kay M | 2201 300TH AVE | Earlville | 169.06 |
| 070060000100 | Venteicher Norma Jean | 1636 400TH ST | Strawberry Point | 168.87 |
| 070060000110 | Venteicher Norma Jean | 1636 400TH ST | Strawberry Point | 168.87 |
| 080060000100 | Jasper Lillian P Charitable Rem Annuity Tr 1/2 | — | Unincorporated | 167.68 |
| 160180000600 | Baer Shirley H Living Trust (1/2 Int) | — | Unincorporated | 162.60 |
| 110180001400 | Nieman Matthew R | 1861 110TH AVE | Masonville | 162.57 |
| 020310000700 | Rahe Family Inc | 1568 280TH AVE | Earlville | 162.13 |
Download Delaware County parcel data
All 17,609 parcels in Delaware County as a single file — free, no account needed. Shapefile, GeoJSON, GeoPackage, CSV and Parquet.
Get Delaware County on FreeParcelData →Nearby counties
Frequently Asked Questions
How many parcels are in Delaware County?
The Delaware County assessor roll on file records 17,609 parcels across 19 communities, with 36.1% lying outside any incorporated place.
Who owns the most land in Delaware County?
Cooey Marcheta R et al holds 167 parcels, the most of any owner on record — the largest-landowners leaderboard ranks the top 25.
What is the typical parcel size in Delaware County?
Measured from mapped boundaries, the median parcel is 1.4 acres, and nine parcels in ten are under 79.5 acres. Boundary-measured area closely tracks deeded acreage but is not the deed.
How much of Delaware County is government-owned?
Government entities — federal, state, and local — hold 0.7% of the county’s parcels, classified from owner names on the roll.
How current is this data?
It comes from the Delaware County assessor roll dated May 2022. 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 (19)
17,609 parcels across 19 communities in Delaware County.
- Coggon64 parcels
- Colesburg342 parcels
- Delaware171 parcels
- Delhi1,376 parcels
- Dundee393 parcels
- Dyersville615 parcels
- Earlville884 parcels
- Edgewood402 parcels
- Greeley376 parcels
- Hopkinton1,008 parcels
- Lamont6 parcels
- Manchester4,599 parcels
- Masonville259 parcels
- Monticello19 parcels
- New Vienna78 parcels
- Ryan492 parcels
- Strawberry Point43 parcels
- Unincorporated6,365 parcels
- Worthington117 parcels