Hollo, Pennsylvania
Hollo (also Hallo, Niesky, or Nisky) is an unincorporated community in Northampton County, Pennsylvania, United States. It is part of the Lehigh Valley metropolitan area, which had a population of 861,899 and was the 68th-most populous metropolitan area in the U.S. as of the 2020 census.
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Municipalities and communities of Northampton County, Pennsylvania, United States | ||
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