# Ada County, ID property data

> Ada County, ID parcel data: 216,561 parcels with tax assessor records, building permits, zoning, historic designations, building codes, via API, MCP server and vector tiles.

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

Parceled covers 216,561 parcels in Ada County, ID, with tax assessor records, building permits, zoning, historic designations, building codes and hail history available through one API and MCP server. Tax assessor attributes are present for 95% of parcels (owner names on 0% of those records, year built on 0%).

- **Parcels:** 216,561
- **County FIPS:** 16001
- **Snapshot:** October 30, 2026

## What property data is available for Ada County?

| Dataset | Ada County |
| --- | --- |
| Parcel boundaries | 216,561 parcels |
| Tax assessor records | 205,268 records (95% of parcels) |
| Owner name and mailing address | 0% of assessor records |
| Market or assessed value | 100% of assessor records |
| Year built | 0% of assessor records |
| Last sale date | 0% of assessor records |
| Building permits | 5,474 permits since 2026, latest October 24, 2026 |
| Roofing permits | 342 |
| Zoning | 7 zoning jurisdictions |
| Buildable-area screens | Yes |
| Historic designations | 167 |
| Adopted building codes | 1 jurisdiction |
| Hail history (radar) | Yes, every county in the contiguous US |

## How do I query Ada County property data?

Bulk-search every parcel in the county with `search_properties` using `state: "ID"` and `county: "001"` (the county FIPS code 16001), 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": "001" }
}
```

## Frequently asked questions

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

Search the address on the Ada 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).