Instead of filling out PDF forms and sending them to Public Works via email, mail, or fax, the public can now fill out and sign them online. Allegheny County has a population of 1,233,233 according to 2022 Census estimates, down 12,192 residents from 2021.This population drop was the tenth largest. 2023 Ballot Questions for residents of Allegheny County. The 2022 Annual Report is dedicated to Terence J. Gioe, MD, FAAOS. Dr. Gioe served as Editor of the AJRR Annual. Note: These are the graduates and loan types to include and exclude in order to fill out CDS H4 and H5. We have an annual self-evaluation process for the Board and each standing committee. •.