Parker is a city located in Armstrong County, Pennsylvania, United States. It is in the extreme northwestern portion of the county. The populatio…Parker is a city located in Armstrong County, Pennsylvania, United States. It is in the extreme northwestern portion of the county. The population was 695 at the 2020 census. The city was named for Judge John Parker, a lead surveyor of Lawrenceburg and founder/owner of Parker's Landing, the two villages combined to create Parker.
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