Since 1913, the U.S. state of Idaho has issued license plates for vehicles registered there.
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| Image | First issued | Design | Slogan | Serial format | Serials issued | Notes |
|---|---|---|---|---|---|---|
| 1982 | green on white | Famous Potatoes | Coded by county of issuance:
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| 1987 | green on white with sawtooth mountain graphic | Famous Potatoes | Coded by county of issuance:
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| 1987 | dark blue on reflective white with red gradient and dark blue mountain scene | Centennial |
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Awarded "Plate of the Year" for best new license plate of 1987 by the Automobile License Plate Collectors Association, the first time Idaho was so honored. | ||
| 1991 | dark blue on reflective white with red gradient and dark blue mountain scene; embossed serials | Scenic Idaho / Famous Potatoes | Coded by county of issuance:
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Awarded "Plate of the Year" for best new license plate of 1991 by the Automobile License Plate Collectors Association, the second time Idaho was so honored. | ||
| 2008 | black on reflective white with red gradient and dark blue mountain scene; surface-printed serials | Serials continue from where embossed plates left off. |
The following codes are found on standard-issue Idaho license plates. The naming convention is the order of the county in an alphabetical list followed by the first letter of the county name. For example, 2T indicates the second Idaho county beginning with T in an alphabetical list, or Twin Falls County. If only one Idaho county begins with a particular letter, the letter alone serves as the county code. Idaho specialty and vanity license plates do not use county codes; some non-passenger types are county-coded, while others are not.
| County | Code |
|---|---|
| Ada | 1A |
| Adams | 2A |
| Bannock | 1B |
| Bear Lake | 2B |
| Benewah | 3B |
| Bingham | 4B |
| Blaine | 5B |
| Boise | 6B |
| Bonner | 7B |
| Bonneville | 8B |
| Boundary | 9B |
| Butte | 10B |
| Camas | 1C |
| Canyon | 2C |
| Caribou | 3C |
| Cassia | 4C |
| Clark | 5C |
| Clearwater | 6C |
| Custer | 7C |
| Elmore | E |
| Franklin | 1F |
| Fremont | 2F |
| Gem | 1G |
| Gooding | 2G |
| Idaho | I |
| Jefferson | 1J |
| Jerome | 2J |
| Kootenai | K |
| Latah | 1L |
| Lemhi | 2L |
| Lewis | 3L |
| Lincoln | 4L |
| Madison | 1M |
| Minidoka | 2M |
| Nez Perce | N |
| Oneida | 1O |
| Owyhee | 2O |
| Payette | 1P |
| Power | 2P |
| Shoshone | S |
| Teton | 1T |
| Twin Falls | 2T |
| Valley | V |
| Washington | W |
| Image | Type | Serial format | Serials issued | Notes |
|---|---|---|---|---|
| Apportioned Truck | P/R/P AB 1234 | |||
| Classic | 1234 | Serials became surface-printed by 9991. | ||
| Motorcycle | MAB 123 | MAA 1 to present | Serials became surface-printed between MPA 509 and MPH 714. | |
| Old Timer | 12 | |||
| Street Rod | 123A | |||
| Truck | Coded by county of issuance:
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| Utility Trailer | 123 UAB | 1 UAA to present | Motorcycle-sized plate. |
| Image | Type | Serial format | Serials issued | Notes |
|---|---|---|---|---|
| Idaho County Sherriff | AC123 | AC1 to present | At least some plates issued on "Celebrate Idaho Youth: America's Promise" base. | |
| Department of Building Safety | DBS 123 | DBS 1 to present | ||
| Department of Labor | J 12 | J 1 to present | ||
| Fire Department | F 1 | F 1 to present | ||
| Gem County Sherriff | GCS 123 | GCS 1 to present | ||
| Idaho State Patrol | ISP 123 | ISP 1 to present |
| Image | Type | First issued | Design | Serial format | Serials issued | Notes |
|---|---|---|---|---|---|---|
| Agriculture | ||||||
| Basque | B1234 | B0001 to present | ||||
| Celebrate Idaho Youth: America's Promise | 1234Y | 1Y to present | ||||
| Colleges and universities: Boise State University, Brigham Young University-Idaho, College of Idaho, College of Southern Idaho, Eastern Idaho Technical College, Idaho State University, Lewis-Clark State College, North Idaho College, Northwest Nazarene University, and University of Idaho | 1234S 12SAS 1AB2S |
1S to 9999S ? ? |
Idaho State University redesigned at least by transition to surface-printed serials. | |||
| Corvette: America's Sports Car | 1234M | 1M to present | ||||
| Discover Idaho: 1803 Lewis & Clark 1806 | 1234L | 1L to present | ||||
| Discover Idaho Heritage: Appaloosa | 2003 | 1234B | ||||
| Early Detection Saves Lives | c. 2009 | unknown | unknown | |||
| Elks USA | c. 2009 | unknown | unknown | |||
| Fire Fighters | 1234X | 1X to present | ||||
| Forests Today and Tomorrow | 1234F | 1F to present | ||||
| Historic Idaho: Preserve Our Heritage | JA123 | |||||
| Honoring Our Peace Officers | 1234J | 1J to present | ||||
| Idaho Biking: Preserve Our Trails | ||||||
| Idaho Centennial: 1890-1990 | ||||||
| Ideas. Innovations. Idaho | U1234 | U0001 to present | ||||
| Mining: Yesterday, Today, Tomorrow | c. 2009 | 12345C | 00001C to present | |||
| National Guard | 1234G | 1G to present | ||||
| National Rifle Association | c. 2009 | unknown | unknown | |||
| On the Range | c. 2009 | 12345B | 00001B to present | |||
| Purple Heart: Combat Wounded | 1234H | 1H to present | ||||
| Radio Amateur | ||||||
| Sawtooth National Recreation Area | 1234Z | 1Z to present | ||||
| Scenic Idaho: Wild Rivers | 1234U | 1U to present | ||||
| Ski Idaho: Winter Wonderland | 1234K | 1K to present | ||||
| Snowmobile: World's Best Trails | 1234N | 1N to present | ||||
| Special Olympics | c. 2009 | unknown | unknown | |||
| State Capitol Restoration | 1234R | 1R to present | ||||
| Support Our Troops | 12345S | 00001S to present | ||||
| Supporting Rider Education | 1234P | 1P to present | ||||
| The Gem State | ||||||
| Timeless Idaho Values: Boy Scouts | 1234I | 1I to present | ||||
| Veteran | ||||||
| Wilderness - Frank Church: River of No Return and Selway-Bitterroot | ||||||
| Wildlife—bluebird | 12345 | 1 to present | ||||
| Wildlife—cutthroat | ||||||
| Wildlife—elk | 1998 redesigned c. 2008 |
1234E 123AE 12ABE |
1E to 9999E 1AE to 999ZE 1AAE to present |
Awarded "Plate of the Year" for best new optional license plate of 1998 by the Automobile License Plate Collectors Association, the third time Idaho was so honored. Co-recipient with Alaska. | ||
| World Famous Potatoes | 1234T | 1T to present |
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