North Carolina doesn't use prefixes or any other indication of county on their plates. There are a couple of geographically-oriented optional plates - plates that begin with "OBX" to promote the Outer Banks, and plates that begin with "GTP" to promote the Global TransPark. However, these are optional plates, purchased in the same manner as vanity plates, and are available to anyone in the state (although the OBX plates can only actually be purchased at that DMV location).
Pottawattamie is county number 78. Remembered this from the license plates!
Auto license plates issued in Parke County start with the 61 because it is the sixty-first county in alphabetical listing (of all the Indiana counties).
Your local DMV or County Court Clerk.
Illinois never used a county code system
Go the county tax office
That license plate is used on County-owned official vehicles.
North Carolina is credited with the first flight. It is also the logo on their license plates
plates that are apportioned and have a license.
The first name of South Carolina was Iodine State based on the emblems on their license plates. Then, the state was called Palmetto State before officially named South Carolina.
The license plates in North Carolina have 7 characters. The first 3 characters are letters and the last 4 characters are numbers. For example ABC-1234.
I'm not sure you can find the county with those letters. There are only 6 counties starting with M... * Madison * Mahaska * Marion * Marshall * Mills * Muscatine The county name should be on the bottom of the plate. Here is a history of Iowa license plates since 1969: http://www.15q.net/ia.html
Idaho license plates start with a number-letter county code. There are 44 counties, and the code is the first letter in a county's name with the number showing the alphabetical sequence of that county - 1A is Ada County, 3B is Benewah, 7B is Bonner, 9B is Boundary...there's only one county that starts with K, meaning Kootenai. The T stands for "truck." It used to be that all pickups, vans and SUVs had "truck" license plates on them; today, I believe only businesses have them.