Montgomery County was founded in 1784. It is the third largest county in Pennsylvania, Did you know that Montgomery County alone has a larger population than Wyoming, Vermont, Alaska and North Dakota! This beautiful area of the Delaware Valley is home to 7 parks, 5 historic sites and 60 miles of country trails. This area is geographically diverse, ranging from farms and open land in the extreme north of the county to densely populated suburban neighborhoods in the southern and central portions of the county.