Montgomery County
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AI overview
Montgomery County is a county located in Pennsylvania in the northeastern United States. It is historically significant as part of the Philadelphia metropolitan area and plays an important role in the region's economy and population.
AI-generated from the Wikipedia summary — may contain errors.
Key facts
- Country
- United States
- State
- Pennsylvania
- Founded
- September 10, 1784
- Named after
- Richard Montgomery or Montgomeryshire
- Seat
- Norristown
- Largest municipality
- Lower Merion Township
- County commissioners
- Jamila H. Winder, Chair, Neil K. Makhija, Vice Chair, Thomas DiBello, Commissioner
- Total
- 487 sq mi (1,260 km )
- Land
- 483 sq mi (1,250 km )
- Water
- 4.2 sq mi (11 km ) 0.9%
- Estimate 2025
- 877,643
- Density
- 1,773/sq mi (685/km )
Article
Montgomery County, colloquially referred to as Montco, is in the Commonwealth of Pennsylvania. As of the 2020 census, the population of the county was 856,553, making it the third-most populous county in Pennsylvania after Philadelphia and Allegheny counties and the most populous county in Pennsylvania without a major city.
The county seat and largest city is Norristown. The county is part of the Philadelphia–Camden–Wilmington PA-NJ–DE–MD metropolitan statistical area, known as the Delaware Valley, and marks the Delaware Valley's northern border with the Lehigh Valley region of eastern Pennsylvania.