Bethlehem is a city located in Lehigh County and Northampton County Pennsylvania. With a 2020 population of 75,961, it is the 6th largest city in Pennsylvania and the 475th largest city in the United States . Bethlehem is currently growing at a rate of 0.10% annually and its population has increased by 1.31% since the most recent census, which recorded a population of 74,982 in 2010. Bethlehem reached it's highest population of 75,961 in 2021. Spanning over 19 miles, Bethlehem has a population density of 3,974 people per square mile.
The average household income in Bethlehem is $73,058 with a poverty rate of 15.43%. The median rental costs in recent years comes to $1,038 per month, and the median house value is $173,500. The median age in Bethlehem is 35.5 years, 33.6 years for males, and 37.7 years for females.