The Address Management group maintains property addresses for Allegheny County. County departments use our data and it is also available to the public and municipal agencies.
911 and Emergency Services use our data to support 911 calls. We maintain the only file they use to respond to calls. The Office of Property Assessments and the Real Estate Division also use our addresses to make their updates. All address updates and reviews must go through Address Management.
The county requires many structures and sites to have an address for 911. Address Management consolidates all addresses into one countywide dataset. We work with municipalities to get and verify addresses, but we do not assign them.
Only the local municipality has the authority to assign or correct addresses. The county must defer to the local municipality to get any new addresses, or to make changes to an address.