Flight Crew Private; Flight Crew Instrument
Flight Crew Last 90 Days 30; Flight Crew Total 1100; Flight Crew Type 800
Distraction; Situational Awareness
Airspace Violation All Types; Conflict NMAC; Deviation / Discrepancy - Procedural FAR
General None Reported / Taken
Procedure; Human Factors
I was on an IFR flight plan to UMP and in contact with ATC at the time of the incident. Descending through 3;200 MSL; heading 180 degrees and around 4 miles NE from UMP; a disc shaped object approx. 16 inches to 2 feet across passed within 100 feet of my right wing tip and was at or very close to my altitude.  The object passed very quickly; but I had time to point it out to my wife (acting as co-pilot at the time. She holds a private pilot certificate and is IFR rated and current. Approx. 1;000 hours as pilot in command). It was the opinion of both of us that the object must be a drone and not a balloon or kite. I advised ATC of the incident.
A pilot reported a near miss with a UAS while descending through 3;200 feet on an IFR flight to UMP.