Knights of Columbus 2199 Post Rd, O Fallon, MO63368 The Knights of Columbus is an all-male Catholic association dedicated to giving back to the community. The Dardenne…More Council 2273 has been located at 2199 Post Road since the 1960s and services the Immaculate Conception Dardenne (ICD). The group is made up of 400 members from age 18 and up. It meets every second and fourth Tuesday of the month at 8pm to discuss and plan trivia parties, mouse races and other fundraisers for local charities. The Knights of Columbus hall is also available for rental for large gatherings like weddings or baptismal parties.