Pittsburgh Pennsylvania Population 2024. The city’s population has fluctuated since 2000, with a. The largest county in the pittsburgh metropolitan statistical area (msa) is allegheny county with a 2020 count of 1,250,536 persons.

The metro area population of pittsburgh in 2023 was 1,702,000, a 0.18% increase from. This figure is an estimate and may slightly change as people get born.