A suburbian county in southeast Pennsylvania Montco (short for Montgomery County) borders Philadelphia to the northwest. Filled with a wide range of people, Montco has everything from upscale mansions (Blue Bell, Gwynedd Valley) to high-rises and cardboard boxes (Norristown, Conshohocken). This should not be confused with Montgomery County, Maryland, who's abbreviation is the much more femininemoco.
The best Philadelphia suburd ever.
by Kyle February 23, 2005