Miami County
Parcel & Property Data
About This Data
LandBrief holds 52,841 parcel records for Miami 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 Miami County assessor roll dated January 2023, loaded August 2026. See data sources for every county’s vintage.
Explore Miami County
Miami County by the Numbers
- Median parcel size
- 0.30 acres
measured from mapped boundaries - 90th-percentile parcel
- 10 acres
- County land area
- 260,212 acres
U.S. Census measurement - Communities
- 17
36.3% of parcels outside any incorporated place
Who Owns Miami County?
Share of the county’s 52,841 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 |
|---|---|
| Other / unclassified | 100.0% |
Parcel Records (~52,841 total)
| Parcel ID | Owner | Address | City | Acreage |
|---|---|---|---|---|
| A01000750 | — | S SULLIVAN RD | Unincorporated | 44.33 † |
| A01000800 | — | 9195 SULLIVAN RD S | Unincorporated | 2.23 † |
| A01000900 | — | 9365 SULLIVAN RD S | Unincorporated | 1.00 † |
| A01001100 | — | 9470 SULLIVAN RD S | Unincorporated | 1.06 † |
| A01001300 | — | S 9550 SULLIVAN RD | Unincorporated | 4.87 † |
| A01001400 | — | 2568 US 40 E | Unincorporated | 3.88 † |
| A01001600 | — | 2442 US 40 E | Unincorporated | 5.07 † |
| A01001601 | — | 2428 US 40 E | Unincorporated | 4.37 † |
| A01001602 | — | US 40 E | Unincorporated | 1.85 † |
| A01001605 | — | 2388 US 40 E | Unincorporated | 3.59 † |
Download Miami County parcel data
All 52,841 parcels in Miami County as a single file — free, no account needed. Shapefile, GeoJSON, GeoPackage, CSV and Parquet.
Get Miami County on FreeParcelData →Nearby counties
Frequently Asked Questions
How many parcels are in Miami County?
The Miami County assessor roll on file records 52,841 parcels across 17 communities, with 36.3% lying outside any incorporated place.
What is the typical parcel size in Miami County?
Measured from mapped boundaries, the median parcel is 0.30 acres, and nine parcels in ten are under 10 acres. Boundary-measured area closely tracks deeded acreage but is not the deed.
How current is this data?
It comes from the Miami County assessor roll dated January 2023. 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 (17)
52,841 parcels across 17 communities in Miami County.
- Bradford700 parcels
- Brandt230 parcels
- Casstown140 parcels
- Covington1,397 parcels
- Fletcher421 parcels
- Huber Heights2,103 parcels
- Laura267 parcels
- Ludlow Falls140 parcels
- New Carlisle1 parcels
- Piqua9,702 parcels
- Pleasant Hill648 parcels
- Potsdam184 parcels
- Tipp City4,471 parcels
- Troy11,056 parcels
- Unincorporated19,201 parcels
- Union35 parcels
- West Milton2,145 parcels