# Ottawa County, OH property data

> Ottawa County, OH parcel data: 37,269 parcels with zoning, historic designations, building codes, via API, MCP server and vector tiles.

Source: https://www.parceled.ai/coverage/ohio/ottawa-county  
Publisher: Parceled (https://www.parceled.ai)  
Updated: 2026-10-30

Parceled covers 37,269 parcels in Ottawa County, OH, with zoning, historic designations, building codes and hail history available through one API and MCP server.

- **Parcels:** 37,269
- **County FIPS:** 39123
- **Snapshot:** October 30, 2026

## What property data is available for Ottawa County?

| Dataset | Ottawa County |
| --- | --- |
| Parcel boundaries | 37,269 parcels |
| Tax assessor records | Not yet |
| Owner name and mailing address | Not yet |
| Market or assessed value | Not yet |
| Year built | Not yet |
| Last sale date | Not yet |
| Building permits | Not yet |
| Roofing permits | Not yet |
| Zoning | 19 zoning jurisdictions |
| Buildable-area screens | Yes |
| Historic designations | 33 |
| Adopted building codes | 1 jurisdiction |
| Hail history (radar) | Yes, every county in the contiguous US |

## How do I query Ottawa County property data?

Bulk-search every parcel in the county with `search_properties` using `state: "OH"` and `county: "123"` (the county FIPS code 39123), or look up one address with `search_parcels`. Check any single property for free with `check_availability`.

```json
{
  "name": "count_properties",
  "arguments": { "state": "OH", "county": "123" }
}
```

## Frequently asked questions

### How do I find who owns a property in Ottawa County?

Search the address on the Ottawa County assessor's website, or query Parceled's `search_parcels` for owner name and mailing address. See [how to find a property owner by address](https://www.parceled.ai/guides/how-to-find-property-owner-by-address).