Kenosha County uses a geographical parcel identification number based on the Public Land Survey System, (PLSS), a grid system used in Wisconsin to identify the location of land.
The County PIN (Parcel Identification Number) uses the elements of the Public Land Surveying System to pinpoint the location of lands in Kenosha County for assessment, taxation and other land related purposes.
Parcel Identification Numbers are unique to each County and some Cities throughout the state. The Wisconsin Land Information Association (WLIA), an association devoted to land records modernization, has developed a State Standard parcel number.
Kenosha County uses the majority of the elements of the recommended standard to identify lands within the County. The urban nature of Kenosha precludes it from conforming precisely to the WLIA standard.
An example of the Kenosha County Tax Parcel Identification System is as follows: Tax Parcel ID Map. As can be seen from this example Kenosha County has two unique parcel identification numbering systems, one for the County and one for the City. Each identification number contains 17 characters, however the City of Kenosha parcel number breaks the location of land into smaller units to more accurately describe the smaller tracts of land associated with an urban area.

A unique feature to the City and County of Kenosha tax parcel number are the first two digits known as the “book” number. The Kenosha County Assessors Office (now defunct) originally established "Book" numbers as a means to easily identify assessment municipalities and to break down assessment districts for maintenance by staff appraisers. The “book numbers” are a product of Kenosha County and do not follow PLSS or Rectangular Surveying System methodology.
The book numbers and areas covered for the County are as follows: County Book Numbers The City book numbers and areas covered are as followed: City Book Numbers