# Philadelphia County, PA property data

> Philadelphia County, PA parcel data: 544,569 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/pennsylvania/philadelphia-county  
Publisher: Parceled (https://www.parceled.ai)  
Updated: 2026-10-30

Parceled covers 544,569 parcels in Philadelphia County, PA, 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 100% of parcels (owner names on 100% of those records, year built on 93%).

- **Parcels:** 544,569
- **County FIPS:** 42101
- **Snapshot:** October 30, 2026

## What property data is available for Philadelphia County?

| Dataset | Philadelphia County |
| --- | --- |
| Parcel boundaries | 544,569 parcels |
| Tax assessor records | 583,600 records (100% of parcels) |
| Owner name and mailing address | 100% of assessor records |
| Market or assessed value | 100% of assessor records |
| Year built | 93% of assessor records |
| Last sale date | 100% of assessor records |
| Building permits | 626,723 permits since 2006, latest March 11, 2020 |
| Roofing permits | 21,177 |
| Zoning | 1 zoning jurisdiction |
| Buildable-area screens | Yes |
| Historic designations | 647 |
| Adopted building codes | 1 jurisdiction |
| Hail history (radar) | Yes, every county in the contiguous US |

## How do I query Philadelphia County property data?

Bulk-search every parcel in the county with `search_properties` using `state: "PA"` and `county: "101"` (the county FIPS code 42101), or look up one address with `search_parcels`. Check any single property for free with `check_availability`.

```json
{
  "name": "count_properties",
  "arguments": { "state": "PA", "county": "101" }
}
```

## Frequently asked questions

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

Search the address on the Philadelphia 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).