Covering Victorville, Apple Valley, Hesperia, Adelanto, Phelan, Pinon Hills, Silver Lakes, Lucerne Valley
APN stands for Assessors Parcel number. Parcel numbers are assigned to areas of land by the
county assessor for the purpose of identification and tracking. Maps, showing the parcel numbers, are
maintained in map books by the county assessor. A San Bernardino County Assessors Parcel Number is a
string of 13 digits encoded as follows:
First four digits: Map Book Number.
Next three digits: Block Number (the first two digits are the page number).
Next two digits: Parcel Number
Last four digits: Normally zero, used to identify separate interests when a parcel is subdivided as in a
The following diagram shows a portion of a parcel map. The block number is 201 and the parcel numbers are
written inside circles.