You can find all transit information for Johnson County and the Kansas City area at RideKC.org.
Here's an overview of bus routes serving Johnson County:
401 Metcalf-Plaza: Travels to JCCC, UMKC, Prairiefire, Sprint Campus, County Club Plaza, Mission Transit Center, Shawnee Mission Parkway and Metcalf.
402 Johnson-Quivira: Travels to JCCC, OP Regional Medical Center, Oak Park Mall, Downtown Shawnee, Johnson County Offices at 6000 Lamar, Mission Transit Center, Donnelly College, and downtown Kansas City, Kan.
403 Antioch-Olathe: Travels to JCCC, Olathe, Corporate Woods, Antioch, Mission Transit Center, and downtown KCMO.
404 Metcalf-Downtown: Travels to Rosana Square, Metcalf Ave., Overland Park Farmers Market, and downtown KCMO.
405 Nall-Downtown: Travels to Mission Transit Center, KU Med, and downtown KCMO.
435 JOCO-Downtown Midday: Travels to Downtown Olathe, JCCC, Oak Parkk Mall, Mission Transit Center, and downtown KCMO.
475 Quivira-75th St.: Travels to KU-Edwards Campus, JCCC, Overland Park Regional Medical Center, Oak Park Mall, Shawnee Mission Medical Center, and KC Library-Waldo with connections to Main St. MAX and Troost MAX.
482 Overland Park: Flex travels between Quivira and Lamar, 75th to 95th streets. Call to request a trip.
495 95th Street: Lenexa City Center, Oak Park Mall, Johnson County Library-Oak Park, The Forum, Rockhurst High School, Ward Parkway Center, and Waldo with connections to Main St. MAX.
510 K-10 Connector: Kansas University, 19th & Haskell, JCCC and KU-Edwards Campus.
519 Olathe Express: Olathe Medical Center, Old 56 & Robinson, Sheridan & Mur-Lin Park & Ride, Strang Line Park & Ride, and downtown KCMO
563 Shawnee Express: Travels to K-7 & Sante Fe, 66th & Hilltop Park & Ride, Shawnee Station Park & Ride, and downtown KCMO.
569 South OP Express: Travels to Blue Valley Baptist Church Park & Ride,147th Antioch Park & Ride, and downtown KCMO.
595 Gardner-OP Express: Edgerton, Gardner, Oak Park Mall, and downtown KCMO.
Additional service to Johnson County includes:
51 Ward Parkway: Travels to Rosana Sqaure, Town Center Plaza, Sprint Campus, St. Luke's South Hospital, Ward Parkway Center, Burns & McDonnell, Country Club Plaza, KU Medical Center, Metropolitan Community College-Penn Valley, Downtown Airport and downtown KCMO.
52 Ward Limited: Travels to Ward Parkway Center, Burns & McDonnell, Country Club Plaza, Westport and downtown KCMO.
75 75th Street: Travels to State Line, Ward Parkway Center, Alphapointe, and Waldo Library.
107 7th Street-Parallel: Travels to Mission Transit Center, Westwood City Hall, KU Medical Center, 47th & State Ave. and downtown KCK.