Harlem is a village in Hereford Township, Berks County, Pennsylvania. It is located one mile SE of Seisholtzville in a valley near the headwaters of the Perkiomen Creek

Perkiomen Creek

Perkiomen Creek is a tributary of the Schuylkill River in Berks, Lehigh and Montgomery counties in Pennsylvania in the United States.Perkiomen Creek begins in Hereford Township, Berks County, initially flows eastward into Upper Milford Township, Lehigh County, and turns southward to reenter...

. It is split between the zip code

ZIP Code

ZIP codes are a system of postal codes used by the United States Postal Service since 1963. The term ZIP, an acronym for Zone Improvement Plan, is properly written in capital letters and was chosen to suggest that the mail travels more efficiently, and therefore more quickly, when senders use the...

s of Barto and Macungie, which are 19504 and 18062, respectively. The township municipal building is located in Harlem at the physical address of 3131 Seisholtzville Road, Macungie, while the building's mailing address is PO Box 225, Hereford. http://www.co.berks.pa.us/Muni/Hereford/Pages/TownshipofHereford.aspx