San Mateo County parcel data is available in AcreBound, with 225,035 mapped parcel records.
Share of San Mateo County parcel records that carry each data type.
San Mateo County has 225,035 mapped parcels in the AcreBound California dataset, about 2% of all mapped parcels in California.
Across San Mateo County records, AcreBound holds parcel boundaries on 100%, APN or parcel ID on 100% and property addresses on 100%. These records were last refreshed in May 2026.
| Data type | Availability | Records |
|---|---|---|
| Parcel Boundaries | Excellent | 100% |
| APN / Parcel ID | Excellent | 100% |
| Property Address | Excellent | 100% |
| Owner Information | Unavailable | n/a |
| Mailing Address | Unavailable | n/a |
| Acreage | Unavailable | n/a |
| Land Use | Unavailable | n/a |
| Building Information | Unavailable | n/a |
Availability describes how complete each data type is. The records themselves are viewed in the AcreBound app.
AcreBound refreshes San Mateo County parcel records on a rolling basis. Verify anything important against official county records.
Parcel details, boundaries and ownership information are available in the app.
Find a parcel from a street address.
Look up a parcel using its APN or parcel number.
Find parcels by owner name where ownership data is available.
Tap anywhere on the map to open the parcel beneath it.
Use your current location to see the parcel you are standing on.
View parcel boundaries, property details, ownership information and land data with AcreBound.
