Altoona is a city in Blair County, Pennsylvania, United States. The population was 43,963 at the time of the 2020 census. [9] It is the principal city of the Altoona metropolitan area, which includes all of Blair County and was recorded as having a population of 122,822 in 2020. [10] Altoona was established in 1849 by the Pennsylvania Railroad ... More @Wikipedia
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