1211 Ring Bill Loop, Upper Marlboro, MD 20774 is a multi family home built in 2003. This property was last sold for $428,000 in 2006 and currently has an estimated value of $402,000. According to the Upper Marlboro public records, the property at 1211 Ring Bill Loop, Upper Marlboro, MD 20774 has approximately 1804 square feet, with a lot size of 2,624 square feet. Nearby schools include Perrywood Elementary School, Largo High School and Kettering Middle School.