Assessment Information

Welcome to the Tax Assessment Information page. This page is meant to help you understand the property assessment process and provide you resources to conduct additional research.


Tax assessment determinations are made by licensed assessors.  This is the Assessor's Rights and Procedures for Entering a Property The goal of the process is to properly determine the market value of a given property. This assessed value is then used in conjunction with millage rates set by the taxing authorities (school districts, the county and municipalities) to determine the property taxes owed.

Market Value has been defined by the State Supreme Court as "the price in a competitive market a purchaser, willing but not obligated to buy, would pay an owner, willing but not obligated to sell, taking into consideration all the legal uses to which the property can be adapted and might reasonably be applied."

Please note: The Assessment Office does not establish property tax costs. The Assessment Office only establishes the Fair Market Value of the property for ad valorum (at value) tax purposes. The taxing authority (county, municipality or school district) establishes the tax cost through millage (tax) rates.

The assessment of a property may be periodically adjusted through countywide reassessments as authorized by the York County Board of Commissioners. Assessments also may be adjusted due to improvements to a given property or because of assessment appeals sought by the property owner.

For further information or to conduct research, please consider using one of the following resources:

Real Estate Assessment Data

This is a public version on our internal database, estimated face value of property taxes.  You will find all relevant information relating to your parcel from owners information, parcel data, and taxes.  This site is updated on a weekly basis.  

Property Viewer - Mapping / Property Tax Liability Lookup

This graphical/mapping display shows owner name, municipality, sales prices, school district, assessed values, estimated face value of property taxes and road and property lines.

Microsoft / Pictometry Aerial Photo Site

Here you can search for a specific property by address. Viewing options include a birdseye and street view.

Uniform Parcel Identifier System

A Uniform Parcel Identifier (UPI) is a series of numbers that identifies each separate lot, tract, or parcel of real estate in York County. This page explains what UPIs represent. These numbers can be used to help identify ownership, liens, property lines and other matters affecting real estate.

Tax Millage Rates

Here you can read and print the current Property Millage (Tax) Rates as set by school districts, municipalities and the county. Property tax rates in Pennsylvania are referred to as millage rates, and they are figured in mills. One mill is equal to 1/1,000 of a dollar.

To calculate your tax bill:

  • Convert the millage rate to its decimal equivalent to make the calculation easier. To do so, multiply the millage rate by .001.
    • Example: 5 mills by .001 equals .005
  • Multiply this figure by the property's assessed value
    • Example: A Tax Rate of 5 mills and a property assessed at $150,000
    • Calculation: $150,000 by .005 equals $750

Land Use Codes

View the Land Use Codes (PDF).