During research on mesopredators on Fort Riley Military Reservation, Kansas, we determined the densities of sympatric coyotes (Canis latrans), bobcats (Lynx rufus), raccoons (Procyon lotor), and opossums (Didelphis virginiana). For six-month trapping periods, we also documented the minimum number of individuals from 8 species of mesopredators that used the 2.6 km² trapping area. Despite low or moderate densities of mesopredators, a minimum of 48 to 55 individual mesopredators was recorded within the trapping areas, suggesting that small areas can be more intensively used than density estimates would suggest.