Jacksonville is an unincorporated community that is located in Lynn Township in Lehigh County, Pennsylvania.

It is part of the Lehigh Valley, which has a population of 861,899 and was the 68th-most populous metropolitan area in the U.S. as of the 2020 census.

After land was donated for a church and churchyard, the first house was built in 1820.

[2] The village was named after President Andrew Jackson in 1845.

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