Halfway House is a census-designated place (CDP) in Montgomery County, Pennsylvania, United States.

[3] According to the United States Census Bureau, the CDP has a total area of 2.0 square miles (5.2 km2), all land.

[4] At the 2000 census there were 1,823 people, 637 households, and 503 families living in the CDP.

There were 662 housing units at an average density of 331.6 per square mile (128.0/km2).

15.7% of households were made up of individuals, and 6.6% were one person aged 65 or older.