Pennsburg is a borough in Montgomery County, Pennsylvania, United States. The population was 2,732 at the 2000 census.
It is part of the Upper Perkiomen School District.
According to the United States Census Bureau, the borough has a total area of 0.8 square miles (2.0 km²), all of it land.
Pennsburg is located 40 miles northwest of Philadelphia and 5 miles southwest of Quakertown.
Pennsburg's elevation is at 350 feet above sea level.
There were 1,009 households out of which 38.1% had children under the age of 18 living with them, 55.2% were married couples living together, 9.8% had a female householder with no husband present, and 30.1% were non-families. 24.0% of all households were made up of individuals and 8.5% had someone living alone who was 65 years of age or older. The average household size was 2.59 and the average family size was 3.08.
In the borough the population was spread out with 27.0% under the age of 18, 7.4% from 18 to 24, 33.1% from 25 to 44, 18.4% from 45 to 64, and 14.1% who were 65 years of age or older. The median age was 35 years. For every 100 females there were 90.4 males. For every 100 females age 18 and over, there were 90.9 males.
The median income for a household in the borough was $46,715, and the median income for a family was $56,250. Males had a median income of $37,036 versus $26,190 for females. The per capita income for the borough was $18,977. About 4.4% of families and 6.2% of the population were below the poverty line, including 6.3% of those under age 18 and 3.7% of those age 65 or over.