# Washington County, ID property data

> Washington County, ID parcel data: 10,348 parcels with tax assessor records, zoning, historic designations, building codes, via API, MCP server and vector tiles.

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

Parceled covers 10,348 parcels in Washington County, ID, with tax assessor records, zoning, historic designations, building codes and hail history available through one API and MCP server. Tax assessor attributes are present for 100% of parcels (owner names on 99% of those records, year built on 0%).

- **Parcels:** 10,348
- **County FIPS:** 16087
- **Snapshot:** October 30, 2026

## What property data is available for Washington County?

| Dataset | Washington County |
| --- | --- |
| Parcel boundaries | 10,348 parcels |
| Tax assessor records | 10,339 records (100% of parcels) |
| Owner name and mailing address | 99% of assessor records |
| Market or assessed value | 84% of assessor records |
| Year built | 0% of assessor records |
| Last sale date | 0% of assessor records |
| Building permits | Not yet |
| Roofing permits | Not yet |
| Zoning | 1 zoning jurisdiction |
| Buildable-area screens | Yes |
| Historic designations | 31 |
| Adopted building codes | 1 jurisdiction |
| Hail history (radar) | Yes, every county in the contiguous US |

## How do I query Washington County property data?

Bulk-search every parcel in the county with `search_properties` using `state: "ID"` and `county: "087"` (the county FIPS code 16087), or look up one address with `search_parcels`. Check any single property for free with `check_availability`.

```json
{
  "name": "count_properties",
  "arguments": { "state": "ID", "county": "087" }
}
```

## Frequently asked questions

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

Search the address on the Washington 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).