1885: 3 officers
1886-1888: 5 officers
1906: 6 officers
1915: 7 officers
1925: 16 officers, two cars, and one motorcycle
1930: 21 officers
1941: 41 officers
1948: Aerial unit added
1951: 67 officers
1968: School Liason program added
1969: Police Reserves added
1971: Marion Interagency Narcotics Team added
1972: Hand-held radios
1973: First woman patrol officer
1974: 139 officers on force
1980: 911 system added