Allentown is located in Pennsylvania. Allentown, Pennsylvania 18109has a population of 123,855. Allentown 18109 is more family-centric than the surrounding county with 31.86% households with children. The county percentage for households with children is 29%.
The median household income in Allentown, Pennsylvania 18109 is $43,079. The median household income for the surrounding county is $65,467 compared to the national median of $66,222. The median age of people living in Allentown 18109 is 36 years.
The average high temperature in July is 83.9 degrees, with an average low temperature in January of 19.1 degrees. The annual precipitation is 45.17.