About Bethlehem 18020, PABethlehem is located in Pennsylvania. Bethlehem, Pennsylvania 18020has a population of 76,309. Bethlehem 18020 is less family-centric than the surrounding county with 24.2% households with children. The county percentage for households with children is 27%. The median household income in Bethlehem, Pennsylvania 18020 is $50,785. The median household income for the surrounding county is $63,934 compared to the national median of $57,525. The median age of people living in Bethlehem 18020 is 37.3 years. Bethlehem WeatherThe 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. Bethlehem MapBethlehem real estate officesSort by:
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