Each of the 48 states of the United States of America plus several of its territories and the District of Columbia issued individual passenger license plates for 1955.^[1][2][3][4]

Passenger baseplates

Passenger  Car  Plates

Image	Region	Design	Slogan	Serial format	Serials issued	Notes
	Alabama
	Alaska
	American Samoa
	Arizona
	Arkansas
	California
	Canal Zone
	Colorado
	Connecticut
	Delaware
	District of Columbia
	Florida
	Georgia
	Guam
	Hawaii
	Idaho
	Illinois
	Indiana
	Iowa
	Kansas	Embossed white serial on black state-shaped plate with border line; "KANSAS 55" centered at top	"THE WHEAT STATE" centered at bottom	AB-1234	Coded by county of issuance (A/B)
	Kentucky
	Louisiana	Embossed white serial with pelican separator on black plate with border line; "LOUISIANA 1955" at bottom	none	123 456	1 001 to approximately 740 000
	Maine
	Maryland
	Massachusetts
	Michigan
	Minnesota
	Mississippi
	Missouri
	Montana
	Nebraska
	Nevada
	New Hampshire
	New Jersey
	New Mexico
	New York
	North Carolina
	North Dakota
	Northern Mariana Islands
	Ohio
	Oklahoma	Embossed white serial on black plate with border line; "55" at top right	"VISIT OKLAHOMA" at top, offset to left	1-12345 1-A1234 10-1234 10-A123		County-coded (1 or 10)
	Oregon
	Pennsylvania
	Puerto Rico
	Rhode Island
	South Carolina
	South Dakota					Letters appear along with the numbers in larger counties.
	Tennessee
	Texas
	Utah
	Vermont
	Virginia
	Washington
	West Virginia
	Wisconsin	Embossed green serial on white plate; "WIS" at top left, month of expiration and "55" at top right, slogan at bottom	AMERICA'S DAIRYLAND	A12-345	Coded by month of expiration (A)
	Wyoming

Non-passenger plates

Non-passenger  Plates  

Image (standard)	Region	Type	Design & Slogan	Serial format	Serials issued	Notes
	Maryland	Temporary
	Wisconsin	Bus	Embossed black serial on orange plate; "WIS" at top left, "BUS" at top right; "55" at bottom left	A 12	Coded by weight class (A)
		Dealer	Embossed black serial on cream plate; "WIS" at top left, "55" at top right; "DEALER" at bottom	A 1234	Dealer number and plate number	Number is the dealer number, letters increment every time a new plate is issued to that specific dealer
		Disabled veteran	Unknown format
		Farm	Embossed yellow serial on blue plate; "EXP" at top left, "DEC 55" at top right; "WIS FARM" at bottom	12345	1 to approximately 96000
		Heavy farm	Embossed yellow serial on blue plate; "EXP" at top left, "DEC 55" at top right	A 1234	Coded by weight class (A)	Issued to farm trucks over 10,000lbs.
		In transit	Embossed black serial on cream plate; "WIS" at top left, "55" at top right; "IN TRANSIT" at bottom	AB 12	Transporter number and plate number	Number is the transporter number, letters increment every time a new plate is issued to that particular transporter
		Manufacturer	Embossed black serial on cream plate; "WIS" at top left, "55" at top right; "MANUFACTURER" at bottom	AB 12	Manufacturer number and plate number	Number is the manufacturer number, letters increment every time a new plate is issued to that particular manufacturer
		Mobile home	Embossed white serial on green plate; "EXP" at top left, "DEC 55" at top right; "WIS MOBILE HOME" at bottom	1234	1 to approximately 6500	Recaptioned from "cabin" in 1955
		Motorcycle	Embossed white serial on maroon plate with border line; "A WIS 55" at top	1234	1 to approximately 8250
		Motorcycle sidecar	Embossed white serial on maroon plate with border line; "B WIS 55" at top	123	1 to approximately 125
		Motorcycle dealer	Embossed black serial on cream plate with border line; "WIS 1955" at top, vertical stacked "DLR" at right	AB1, A12	Dealer number and plate number	Number is the dealer number, letters increment every time a new plate is issued to that specific dealer
		Municipal	Embossed white serial on black plate; "WIS" at top left, "55" at top right; "MUNICIPAL" at bottom	12345	1 to approximately 13000
		Municipal motorcycle	Embossed white serial on black plate with border line; format unknown	M123	M 1 to unknown
		Official	Embossed white serial on black plate; "WIS" at top left, "55" at top right; "OFFICIAL" at bottom	123	1 to approximately 700
		School bus	Embossed black serial on orange plate; "WIS" at top left, "SCH" at top right; "55" at bottom left, quarterly tab at far right	A 12	Coded by weight class (A)
		Special-X	Embossed white serial on black plate; "WIS" at top left, "55" at top right	123 X	1 X to approximately 150 X
		Tax only	Embossed black serial on orange plate; "WIS" at top left, "55" at bottom left; quarterly tab at far right	123	1 to unknown (244 high)
		Tractor	Embossed black serial on orange plate; "WIS" at top left, "55" at bottom left; "TRACTOR" at bottom, quarterly tab at far right	A 123, AB123	Coded by weight class (A)/(AB)
		Light trailer	Embossed white serial on green plate; "EXP" at top left, "DEC 55" at top right; "WIS TRAILER" at bottom	A 1234	Coded by weight class (A)
		Heavy trailer	Embossed black serial on orange plate; "WIS" at top left, "TRL" at top right; "55" at bottom left, quarterly tab at far right	A 123	Coded by weight class (A)	Weight classes are E, F, G, H, J, K, L, M, N, R, S, T, V, X, and Y. Also issued to light trailers for hire in the A, B, C, and D weight classes.
		Commercial semi-trailer	Embossed black serial on orange plate; "EXP" at top left, "JUN 55" at top right; "WIS SEMI-TRAILER" at bottom	CS 1234	CS 1 to approximately CS 6000
		Private semi-trailer	Embossed black serial on orange plate; "EXP" at top left, "JUN 55" at top right; "WIS SEMI-TRAILER" at bottom	PS 1234	PS 1 to approximately PS 1500
		Trailer dealer	Embossed black serial on cream plate; "WIS" at top left, "55" at top right; "DEALER" at bottom	A 12 TL	Dealer number and plate number	Number is the dealer number, prefix letters increment every time a new plate is issued to that specific dealer
		Light truck	Embossed white serial on green plate; "EXP" at top left, "DEC 55" at top right; "WIS TRUCK" at bottom	A12-345	Coded by weight class (A). Serials start at A25-001	Weight classes are A, B, C, and D
		Heavy truck	Embossed black serial on orange plate; "WIS" at top left, "TRK" at top right; "55" at bottom left, quarterly tab at far right	A1234	Coded by weight class (A)	Weight classes are E, F, G, H, J, K, L, M, N, R, S, T, V, and X. Also issued to light trucks for hire in the A, B, C, and D weight classes.