Wikipedia:WikiProject U.S. Roads/Wisconsin/Early highway history
The original 1917 system was apparently 10 to 75. Sources include a 1918 map and 1925? highway list, the source for the list below.
- WIS 10 Beloit-Wausau-Superior
- WIS 11 Dubuque-La Crosse-Superior
- WIS 12 Genoa Junction-Madison-St. Paul
- Now US 12; all in 1918
- WIS 13 Beloit-Kilbourn-Superior
- WIS 14 Niagara-St. Croix Falls
- WIS 15 Illinois State Line-Milwaukee-Marinette
- WIS 16 Manitowoc-Chippewa Falls
- WIS 17 Illinois State Line-Milwaukee-Sister Bay
- WIS 18 Manitowoc-Stevens Point-Prescott
- WIS 19 Milwaukee-Madison-Prairie du Chien
- WIS 20 Racine-East Dubuque
- WIS 21 Oshkosh-North Tomah
- WIS 22 Oconto-Wautoma
- WIS 23 Sheboygan-Kilbourn-Dubuque
- WIS 24 Ashland-Clear Lake-Hudson
- WIS 25 Durand-Jct. No. 48 Near Rice Lake
- WIS 26 Beloit-Oshkosh-State Line (Vilas County)
- WIS 27 Prairie du Chien-Superior
- WIS 28 Beaver Dam-Sheboygan
- WIS 29 Watertown-La Crosse
- WIS 30 Milwaukee-Madison
- WIS 31 Illinois State Line at Monroe-Manitowoc
- WIS 32 Sheboygan-Eagle River
- WIS 33 Waupun-La Crosse
- WIS 34 Berlin-Omro-Butte des Morts
- WIS 35 Dubuque-Superior
- WIS 36 Milwaukee-Big Foot (Illinois State Line)
- WIS 37 Alma-Eau Claire
- WIS 38 Racine-Ryan Road (River and Howell Road)
- WIS 39 Albany-Mineral Point-Edmund
- WIS 40 Elk Mound-Junction No. 27 North of Bruce
- WIS 41 Milwaukee-Madison-La Crosse
- WIS 42 Cedar Grove-No. 18 West of Manitowoc
- WIS 43 Kenosha-Burlington
- WIS 44 North Leeds-Oshkosh
- WIS 45 Wisconsin Rapids-Junction City-Knowlton
- WIS 46 Red Wing-Amery to No. 14
- WIS 47 Appleton-Woodruff
- WIS 48 Rice Lake Grantsburg
- WIS 49 Waupun-Wittenberg
- WIS 50 Kenosha-Delavan
- WIS 51 Downsville-Ellsworth
- WIS 52 Wausau-Aniwa
- WIS 53 Neillsville-Fountain City
- WIS 54 Algoma-Winona
- WIS 55 Milwaukee-Alvin-State Line
- WIS 56 Richland Center-Genoa
- WIS 57 Illinois State Line-Niagara
- WIS 58 No. 41 near Sextonville-Mauston
- WIS 59 Monroe-Goerkes Corners
- WIS 60 Ulao-Prairie du Chien
- WIS 61 Milwaukee-Cassville
- WIS 62 Junction No. 20-Mineral Point
- WIS 63 Merrill-Eagle River
- WIS 64 Marinette-Stillwater
- WIS 65 New Richmond-River Falls
- WIS 66 Stevens Point-Rosholt-No. 49
- WIS 67 Junction No. 12 (Walworth County)-Plymouth
- WIS 68 Port Washington-Fox Lake
- WIS 69 Menominee River-Brule (Florence County)
- WIS 70 Eagle River-Grantsburg
- WIS 71 Mauston-Melrose
- WIS 72 No. 70 (Vilas County)-Plum Lake
- WIS 73 Janesville-Ingram
- WIS 74 Fox Point-Junction No. 83 (North Lake)
- WIS 75 Durham Corners (Waukesha County)-Junction 50 (Kenosha County)
- WIS 76 Appleton-Bear Creek
- WIS 77 Hurley-Hayward
- WIS 78 Green Bay-Sister Bay
- WIS 79 Menomonie Junction-Glenwood-To No. 64
- WIS 80 Illinois State Line (Hazel Green)-Necedah
- WIS 81 Illinois State Line (Gratiot)-Portage
- WIS 82 Hillsboro-De Soto
- WIS 83 Illinois State Line (Salem)-Junction No. 15 (Hartford)
- WIS 84 Knellsville-Boltonville
- WIS 85 Durand-Eau Claire
- WIS 86 Tomahawk-Ogema
- WIS 87 St. Croix Falls-Grantsburg
- WIS 88 Junction No. 35 (Buffalo County)-Mondovi
- WIS 89 Illinois State Line (Big Foot)-Waterloo
- WIS 90 Palmyra-Ixonia
- WIS 91 Merrill-McCord
- WIS 92 Beloit-Mt. Horeb
- WIS 93 Centerville (Trempealeau County) Eau Claire
- WIS 94 Elroy-Camp Douglas
- WIS 95 Oshkosh-Fremont
- WIS 96 S. T. H. No. 103-Wrightstown
- WIS 97 Marshfield-Goodrich
- WIS 98 Spencer-Greenwood
- WIS 99 Mukwonago-Eagle
- WIS 100 Milwaukee County Loop
- WIS 101 Armstrong Creek-Florence
- WIS 102 Chelsea-Spirit
- WIS 103 Seven Mile Creek-Brandon
- WIS 104 Brodhead-North to No. 59
- WIS 105 Junction No. 35-West (near Superior)
- WIS 106 Fort Atkinson-Oregon
- WIS 107 Junction No. 153-Junction No. 16 (Marathon County)
- WIS 108 West Salem-Melrose
- WIS 109 Watertown-Woodland
- WIS 110 Junction No. 13-Junction No. 24 (Ashland County)
- WIS 111 Catawba-Phillips
- WIS 112 Benoit-No. 13 South of Barksdale
- WIS 113 Madison-Lodi-Baraboo
- WIS 114 Brillion-Menasha
- WIS 115 (Not in use)
- WIS 116 Chippewa Falls-Prescott
- WIS 117 Junction No. 47 to No. 22 (East of Shawano)
- WIS 118 Juneau to No. 60
- WIS 119 Milwaukee-Pewaukee (Lake Street)
- WIS 120 Racine-Burlington
- WIS 121 Whitehall-Independence
- WIS 122 Upson-Saxon
- WIS 123 Baraboo-Devils Lake
- WIS 124 Junction No. 11-Junction No. 64 (East of Bloomer)
- WIS 125 (Not in use)
- WIS 126 Belmont-Junction No. 81
- WIS 127 Pittsville-Dexterville (Wood County)
- WIS 128 Elmwood-Spring Valley
- WIS 129 Potosi-South
- WIS 130 Junction No. 28-Junction No. 60 (Iowa-Richland Cos.)
- WIS 131 Gays Mills-No. 35
- WIS 132 Boscobel-Mt. Hope
- WIS 133 Bloomington-Cassville
- WIS 134 Cambridge-London
- WIS 135 Packwaukee-Junction No. 29
- WIS 136 Prairie du Sac-North Freedom-No. 33
- WIS 137 Junction No. 28-Junction No. 39 (Iowa County)
- WIS 138 Junction No. 59-Junction No. 106 (near Stoughton)
- WIS 139 Cavour-North
- WIS 140 Illinois State Line-No. 20 (Via Clinton)
- WIS 141 No. 29-No. 33-Columbia County
- WIS 142 No. 71 to No. 12 (near Wilton)
- WIS 143 Cedarburg-Junction No. 60
- WIS 144 Cedar Grove-West Bend
- WIS 145 Weyauwega-North
- WIS 146 Kewaunee-Bellevue
- WIS 147 Mishicot-Cooperstown
- WIS 148 Valders-Cato
- WIS 149 Cleveland-Kiel
- WIS 150 Neenah-Winchester
- WIS 151 Brick Yard Road-Appleton
- WIS 152 Danbury-West
- WIS 153 Mosinee-Stratford
- WIS 154 No. 33 (Near Ableman)-No. 58 (South of Loyd)
- WIS 155 South Germantown Cut-off
- WIS 156 Junction No. 47-Junction No. 26 (Clintonville East)
- WIS 157 Lena-Suring (Oconto County)
- WIS 158 Junction No. 64-Crivitz (Marinette County)
- WIS 159 No. 12 (South of Baraboo)-No. 123 (near Devils Lake)
- WIS 160 Green Bay-Angelica
- WIS 161 Symco-Amherst Junction
- WIS 162 Middle Ridge-West Salem-Trempealeau
- WIS 163 Two Rivers-Luxemburg
- WIS 164 Waukesha-Templeton