How accurate are Ohio price ranges?
Every Ohio figure labelled "Price range" on Groundwork passed a sealed test before it was shown: we priced real sales using only data from before each sale, then compared. Figures labelled "Rough estimate" did not reach that standard; their measured miss is listed too. Where a county's test failed outright, its parcels show no figure.
Tested price ranges
Half within: half of the test sales came within this much of the middle of our range (the median miss). Inside the range: the share of scored test sales that fell inside the printed range. A range whose final check is not passed by its due date is withdrawn (the parcel then shows facts only).
| County | Priced | Test | Test sales from | Test sales | Half within | Inside the range | Parcels with this range | Final check |
|---|---|---|---|---|---|---|---|---|
| Hamilton County | condominiums | Value test (oh-value-1) | Oct 2025–Sep 2026 | 1,252 | ±15% | 78% | 14,573 | Due Apr 2027 |
| Holmes County | homes | Value test (oh-value-1) | Oct 2025–Sep 2026 | 141 | ±15% | 79% | 10,632 | Due Apr 2027 |
Rough estimates
Where a county's own sales were too few for a sealed test, or its test missed our standard but stayed usable, the card says "Rough estimate" and gives the miss measured where it was measured: in the county, or across the state's pooled sales. Each label says the range covers about 8 in 10 sales.
| Miss measured | Half within | Covers | Parcels |
|---|---|---|---|
| Cuyahoga County | ±20% | Land and building | 390,615 |
| Montgomery County | ±15% | Land and building | 178,790 |
| Hamilton County | ±20% | Land and building | 133,501 |
| Stark County | ±15% | Land and building | 130,740 |
| Lorain County | ±10% | Land and building | 117,763 |
| Franklin County | ±10% | Land and building | 111,119 |
| Mahoning County | ±20% | Land and building | 81,008 |
| Lake County | ±15% | Land and building | 78,698 |
| Delaware County | ±10% | Land and building | 77,650 |
| Clermont County | ±15% | Land and building | 62,681 |
| Medina County | ±15% | Land and building | 62,553 |
| Summit County | ±20% | Land and building | 59,617 |
| Greene County | ±10% | Land and building | 55,887 |
| Fairfield County | ±15% | Land and building | 51,516 |
| Miami County | ±15% | Land and building | 40,130 |
| Allen County | ±20% | Land and building | 34,589 |
| Geauga County | ±15% | Land and building | 30,893 |
| Cuyahoga County | ±15% | Land and building | 28,878 |
| Belmont County | ±20% | Land and building | 24,838 |
| Huron County | ±15% | Land and building | 18,950 |
| Shelby County | ±15% | Land and building | 16,424 |
| Clinton County | ±15% | Land and building | 13,985 |
| Summit County | ±15% | Land and building | 12,377 |
| Montgomery County | ±10% | Land and building | 11,169 |
| Lake County | ±10% | Land and building | 10,650 |
| Clermont County | ±5% | Land and building | 4,968 |
| Mahoning County | ±10% | Land and building | 4,633 |
| Ottawa County | ±10% | Land and building | 3,673 |
| Medina County | ±10% | Land and building | 3,634 |
| Erie County | ±10% | Land and building | 2,930 |
| Fayette County | ±20% | Land and building | 2,848 |
| Stark County | ±40% | Land only | 1,745 |
| Licking County | ±10% | Land and building | 1,697 |
| Geauga County | ±10% | Land and building | 1,374 |
| Fairfield County | ±30% | Land only | 1,342 |
| Mahoning County | ±30% | Land only | 1,341 |
| Across Ohio | ±10% | Land and building | 1,291 |
| Miami County | ±5% | Land and building | 399 |
What did not pass
The value test (oh-value-1, sealed sales Oct 2025–Sep 2026) checked 158 groups: 2 passed as a tested range, 70 are shown as rough estimates and 86 show no figure.
Buy-for prices: 0 of 65 testable groups passed (oh-buyfor-1), so Ohio parcels show no buy-for price.
Sources and dates
Test sales: recorded Ohio sales on file for each county. Test figures: our out-of-time test reports and, where run, sealed final checks (oh-value-1, oh-buyfor-1). Parcel counts: our Ohio map on Oct 24, 2026. Estimates are for your own analysis, not an appraisal or a broker price opinion.