Larger Transit Agencies (more than 2 million boardings per year)
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| 
 None 
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All Transit Agencies & Local Links, by County & City
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| 
 Note: some counties may also be served by transit agencies in adjoining counties. 
Ada | Adams | Bannock | Bear Lake | Benewah | Bingham | Blaine | Boise | Bonner | Bonneville | Boundary | Butte | Camas | Canyon | Caribou | Cassia | Clark | Clearwater | Custer | Elmore | Franklin | Fremont | Gem | Gooding | Idaho | Jefferson | Jerome | Kootenai | Latah | Lemhi | Lewis | Lincoln | Madison | Minidoka | Nez Perce | Oneida | Owyhee | Payette | Power | Shoshone | Teton | Twin Falls | Valley | Washington 
 | 
| Ada County | 
| Boise City | 
 TRANSIT AGENCIES 
IRC (IDA-RIDE Corporation) 
Valley Regional Transit (ValleyRide) 
OTHER SITES 
Commuteride (Ada County Highway District Commuteride) 
 | 
| Meridian | 
 DES (Diamond Express Shuttle) 
TVM (Treasure Valley Metro) 
ValleyRide (Valley InterArea Transportation, BUS) 
OTHER SITES 
Community Planning Association Of Southwest Idaho  
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| Adams County | 
| None | 
  | 
| Bannock County | 
| Pocatello | 
 PRT (Pocatello Regional Transit) 
ISUCE (Idaho State University Commuter Express) 
 | 
| Bear Lake County | 
| None | 
  | 
| Benewah County | 
| Saint Maries | 
BAT (Benewah Area Transit) | 
| Bingham County | 
| Pocatello | 
ISUCE (Idaho State University Commuter Express) | 
| Blaine County | 
| Hailey | 
Mountain Rides  | 
| Boise County | 
| None | 
  | 
| Bonner County | 
| Coeur d'Alene | 
 Grizzly Transportation  
NICE (North Idaho Community Express) 
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| Bonneville County | 
| Idaho Falls | 
 TRPTA (Targhee Regional Public Transportation Authority) 
PTA (Targhee Regional Public Transit Authority) 
Targhee Regional Public Transit Authority 
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| Pocatello | 
ISUCE (Idaho State University Commuter Express) | 
| Boundary County | 
| None | 
  | 
| Butte County | 
| None | 
  | 
| Camas County | 
| None | 
  | 
| Canyon County | 
| Caldwell | 
 Commuters Bus (CB) 
Valley Regional Transit (ValleyRide) 
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| Nampa | 
 TVT (Treasure Valley Transit) 
Valley Regional Transit (ValleyRide) 
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| Caribou County | 
| None | 
  | 
| Cassia County | 
| Pocatello | 
 PRT (Pocatello Regional Transit) 
ISUCE (Idaho State University Commuter Express) 
 | 
| Clark County | 
| Idaho Falls | 
TRPTA (Targhee Regional Public Transportation Authority) | 
| Clearwater County | 
| None | 
  | 
| Custer County | 
| Idaho Falls | 
TRPTA (Targhee Regional Public Transportation Authority) | 
| Mackay | 
Valley Vista Care Transportation  | 
| Elmore County | 
| Mountain Home | 
MHSS (Mountain Home Shuttle Service) | 
| Franklin County | 
| None | 
  | 
| Fremont County | 
| Idaho Falls | 
TRPTA (Targhee Regional Public Transportation Authority) | 
| Gem County | 
| None | 
  | 
| Gooding County | 
| Twin Falls | 
Trans IV (College of Southern Idaho Trans IV Bus Service) | 
| Idaho County | 
| None | 
  | 
| Jefferson County | 
| Idaho Falls | 
TRPTA (Targhee Regional Public Transportation Authority) | 
| Pocatello | 
ISUCE (Idaho State University Commuter Express) | 
| Jerome County | 
| Twin Falls | 
Trans IV (College of Southern Idaho Trans IV Bus Service) | 
| Kootenai County | 
| Coeur d'Alene | 
 Citylink 
NICE (North Idaho Community Express) 
Other Sites 
Kootenai Metropolitan Planning Organization
  
 | 
| Latah County | 
| Moscow | 
Moscow Valley Transit | 
| Pullman, WA | 
Wheatland Express | 
| Lemhi County | 
| Idaho Falls | 
TRPTA (Targhee Regional Public Transportation Authority) | 
| Lewis County | 
| None | 
  | 
| Lincoln County | 
| None | 
  | 
| Madison County | 
| Idaho Falls | 
TRPTA (Targhee Regional Public Transportation Authority) | 
| Pocatello | 
ISUCE (Idaho State University Commuter Express) | 
| Minidoka County | 
| Pocatello | 
PRT (Pocatello Regional Transit) | 
| Nez Perce County | 
| Lewiston | 
Valley Transit (Regional Public Transportation) | 
| Oneida County | 
| None | 
  | 
| Owyhee County | 
| None | 
  | 
| Payette County | 
| None | 
  | 
| Power County | 
| Pocatello | 
 PRT (Pocatello Regional Transit) 
ISUCE (Idaho State University Commuter Express) 
 | 
| Shoshone County | 
| Coeur d'Alene | 
NICE (North Idaho Community Express) | 
| Teton County | 
| Idaho Falls | 
TRPTA (Targhee Regional Public Transportation Authority) | 
| Twin Falls County | 
| Pocatello | 
ISUCE (Idaho State University Commuter Express) | 
| Twin Falls | 
Trans IV (College of Southern Idaho Trans IV Bus Service) | 
| Valley County | 
| None | 
  | 
| Washington County | 
| None | 
  | 
Statewide, Intercity, & Regional
 | 
| Statewide | 
 CTAI (Community Transportation Association of Idaho) 
ITD (Idaho Transportation Department) 
ITC (Idahoans for Transportation Choices) 
 | 
| Intercity | 
 Alltrans (Jackson Hole Express, Targhee Express) 
Amtrak 
Greyhound (Greyhound Lines) 
Northwestern Trailways (Boise-Winnemucca Stages, Northwestern Stage Lines, NT) 
Rimrock Trailways (Rimrock Stages, RT) 
Salt Lake Express (formerly Trailways Express) 
SVE (Sun Valley Express) 
Valley Regional Transit (ValleyRide) 
 | 
| Regional | 
None |