MIBOR is the professional association representing central Indiana's REALTORS® Founded in 1912, MIBOR was established by 43 charter members and today serves the needs of more than 6,500 members in Boone, Brown, Hamilton, Hancock, Hendricks, Johnson, Marion, Montgomery, Morgan, and Shelby counties. In addition to serving these counties, MIBOR also provides a Broker Listing Cooperative® listing service to REALTORS® in Decatur, Madison and Putnam counties.