- Category: Real Estate Info Real Estate Info
- Published: 14 October 2006 14 October 2006
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What County is that?
Many of you have asked me for a reference on Idaho License Plates and what those pre-fix designation mean. Well...here it is! You can now view the number and letter reference to know which Idaho county certain vehicles are from.
Keep in mind, those who have personalized plates do not have the county designations, so there's no telling from where they came!
County Designations 1932-Present
County 1932-1933 1934-1944 1945-ON Ada A1 1A 1A Adams A2 2A 2A Bannock A3 3A 1B Bear Lake A4 4A 2B Benewah A5 5A 3B Bingham A6 6A 4B Blaine A7 7A 5B Boise A8 8A 6B Bonner A9 9A 7B Bonneville B1 1P 8B Boundary B2 2P 9B Butte B3 3P 10B Camas B4 4P 1C Canyon B5 5P 2C Caribou B6 6P 3C Cassia B7 7P 4C Clark B8 8P 5C Clearwater B9 9P 6C Custer H1 1H 7C Elmore H2 2H E Franklin H3 3H 1F Fremont H4 4H 2F Gem H5 5H 1G Gooding H6 6H 2G Idaho H7 7H I Jefferson H8 8H 1J Jerome H9 9H 2J Kootenai K1 1K K Latah K2 2K 1L Lemhi K3 3K 2L Lewis K4 4K 3L Lincoln K5 5K 4L Madison K6 6K 1M Minidoka K7 7K 2M Nez Perce K8 8K N Oneida K9 9K 1O Owyhee R1 1R 2O Payette R2 2R 1P Power R3 3R 2P Shoshone R4 4R S Teton R5 5R 1T Twin Falls R6 6R 2T Valley R7 7R V Washington R8 8R W
County License plate prefixes: before 1932, a straight numerical system was used with no county prefix. In 1932 and 1933, the letters A, B, H, K, and R were used with the numerals 1 through-9 as county prefixes. From 1934 through 1942, the same prefixes were used except that the B was changed to a P. In 1945 the county prefix designation was started.
When you're ready to move to Idaho and take on one of these beautiful plates, contact Idaho Realtor, Don Wixom to look out for your next move!