Wikipedia:WikiProject U.S. Roads/California/History/Full list of routes

A green background means that the route existed before 1964.

State Route 1 (1934-present)
State Route 2 (1934-present)

State Route 3 (1964-present)

- State Route 3 (1934-by 19 36)
State Route 4 (1934-present)

Interstate 5 (1947/1964-present)

- State Route 5 (1934-1964)
U.S. Route 6 (1937-present)
- State Route 6 (1934-1937)

State Route 7 (1990-present)

- State Route 7 (1934-1964)

- State Route 7 (1964-1984)
Interstate 8 (1947/1964-present)

- State Route 8 (1934-1964)
State Route 9 (1934-present)

Interstate 10 (1947/1964-present)

- State Route 10 (1934-early 1960s)

State Route 11 (1994-present)

- State Route 11 (1934-1981)
State Route 12 (1934-present)

State Route 13 (1964-present)

- State Route 13 (1934-by 1936)

State Route 14 (1964-present)

- State Route 14 (1934-1964)

Interstate 15 (1947/1964-present)
State Route 15 (1969-present)

- State Route 15 (1934-1964)

- Interstate 15E (1972/1974-1982/1982)

State Route 16 (1934-present)
State Route 17 (by 1936-present)
State Route 18 (1934-present)
State Route 19 (1934-present)
State Route 20 (1934-present)
- State Route 21 (by 1941-1976)
State Route 22 (1934-present)
State Route 23 (1934-present)
State Route 24 (1934-present)
State Route 25 (1934-present)

State Route 26 (1964-present)

- State Route 26 (1934-after 1935)
- State Route 26 (1937-1964)
State Route 27 (1934-present)
State Route 28 (between 1953 and 1955-present)
- State Route 28 (1934-between 1953 and 1955)
State Route 29 (1934-present)
- State Route 30 (by 1955-1998)

- State Route 31 (1964-1974)

State Route 32 (1934-present)
State Route 33 (1934-present)

State Route 34 (1964-present)
State Route 35 (1964-present)

- State Route 35 (1934-1964)
State Route 36 (1934-present)
State Route 37 (1934-present)
State Route 38 (by 1963?-present)
State Route 39 (1934-present)

Interstate 40 (1947/1964-present)

- U.S. Route 40 (1928-1964)
State Route 41 (1934-present)
- State Route 42 (early 1960s-1968)
State Route 43 (by 1963?-present)
State Route 44 (mid-1930s-present)
- State Route 44 (1934-mid-1930s)
State Route 45 (1934-present)

State Route 46 (1964-present)
State Route 47 (1964-present)
State Route 48 (1964-present)

- U.S. Route 48 (1928-early 1930s)
- State Route 48 (mid-1930s-1964)
State Route 49 (1934-present)
U.S. Route 50 (1928-present)

State Route 51 (1981-present)
- State Route 51 (1964-1965)
State Route 52 (1964-present)

State Route 53 (by 1955-present)

State Route 54 (1964-present)

State Route 55 (1934-present)

State Route 56 (1964-present)
State Route 57 (1964-present)
State Route 58 (1964-present)
State Route 59 (1964-present)
State Route 60 (1964-present)

- U.S. Route 60 (1931-1964)

State Route 61 (1964-present)
State Route 62 (1964-present)
State Route 63 (1964-present)
State Route 64 (1964-present)

State Route 65 (1934-present)

State Route 66 (1964-present)

- U.S. Route 66 (1928-1964)
State Route 67 (by 1950 [USGS]-present)
State Route 68 (by 1963?-present)

- State Route 69 (1964-1972)
State Route 70 (1964-present)

- U.S. Route 70 (mid-1930s-1964)
State Route 71 (1934-present)

State Route 72 (1964-present)
State Route 73 (1964-present)

State Route 74 (1934-present)
State Route 75 (by 1942-present)
State Route 76 (by 1955-present)

State Route 77 (1964-present)

State Route 78 (1934-present)

State Route 79 (1934-present)
Interstate 80 (1947/1964-present)

- U.S. Route 80 (1928-1964)

State Route 81 (1964-present)
State Route 82 (1964-present)
State Route 83 (1964-present)

State Route 84 (by 1963-present)

State Route 85 (1964-present)
State Route 86 (1964-present)
State Route 87 (1964-present)

State Route 88 (by 1942-present)
State Route 89 (1934-present)

State Route 90 (1964-present)
State Route 91 (1964-present)

- U.S. Route 91 (1928-1964)

State Route 92 (1964-present)
State Route 93 (1964-present)

State Route 94 (1934-present)
U.S. Route 95 (late 1930s-present)
- State Route 95 (1934-by 1936)
State Route 96 (1934-present)
U.S. Route 97 (mid-1930s-present)
State Route 98 (1934-present)

State Route 99 (1964-present)

- U.S. Route 99 (1928-1964)

State Route 100 (1964-present)

U.S. Route 101 (1928-present)

State Route 102 (1964-present)
State Route 103 (1984-present)
- State Route 103 (1964-1969)

State Route 104 (1934-present)

Interstate 105 (1968/1968-present)
- Interstate 105 (1955/1964-1965/1968)
- State Route 106 (1964-1972)

State Route 107 (by 1941-present)
State Route 108 (1934-present)

State Route 109 (1984-present)
- State Route 109 (1964-1972)
Interstate 110 (1978/1981-present)
State Route 110 (1981-present)
- Interstate 110 (1955/1964-1965/1968)

State Route 111 (1934-present)

State Route 112 (1964-present)
State Route 113 (1964-present)
State Route 114 (1964-present)

State Route 115 (by 1958 [USGS]-present)

State Route 116 (1964-present)
- State Route 117 (1964-1965)
- State Route 117 (1972-1986)

State Route 118 (1934-present)

State Route 119 (1964-present)

State Route 120 (1934-present)

State Route 121 (1964-present)
State Route 122 (1964-present)
State Route 123 (1964-present)
State Route 124 (1964-present)
State Route 125 (1964-present)

State Route 126 (1934-present)
State Route 127 (1934-present)
State Route 128 (between 1953 and 1955-present)

State Route 129 (1964-present)
State Route 130 (1964-present)
State Route 131 (1964-present)

State Route 132 (1934-present)

State Route 133 (1964-present)

State Route 134 (by 1939-present)

State Route 135 (1964-present)
State Route 136 (1964-present)
State Route 137 (1964-present)

State Route 138 (1934-present)
State Route 139 (by 1954 [USGS]-present)
State Route 140 (1934-present)

- State Route 141 (1964-1988)
State Route 142 (1964-present)
State Route 143 (1964-present)
State Route 144 (1964-present)

State Route 145 (by 1955-present)

State Route 146 (1964-present)
State Route 147 (1964-present)
State Route 148 (1964-present)
State Route 149 (1964-present)

State Route 150 (1934-present)

State Route 151 (1964-present)

State Route 152 (1934-present)

State Route 153 (1964-present)

State Route 154 (by 1963??-present)

State Route 155 (1964-present)

State Route 156 (by 1947 [USGS]-present)

- State Route 157 (1964-1994)
State Route 158 (1964-present)
- State Route 159 (1964-1992)
State Route 160 (1964-present)
State Route 161 (1964-present)
State Route 162 (1964-present)
State Route 163 (1969-present)
- State Route 163 (1964-1965)
State Route 164 (1964-present)
State Route 165 (1970-present)
- State Route 165 (1964-1965)

State Route 166 (1934-present)

State Route 167 (1964-present)

State Route 168 (1934-present)

State Route 169 (1964-present)
State Route 170 (1964-present)
- State Route 171 (1964-1994)
State Route 172 (1964-present)
State Route 173 (1964-present)
State Route 174 (1964-present)
State Route 175 (1964-present)
- State Route 176 (1964-1984)
State Route 177 (1972-present)
- State Route 177 (1964-1965)

State Route 178 (1934-present)

State Route 179 (1964-present)

State Route 180 (1934-present)

- Interstate 180 (1978-1983)
State Route 181 (1964-present)
State Route 182 (1964-present)
State Route 183 (1964-present)
State Route 184 (1964-present)
State Route 185 (1964-present)
State Route 186 (1972-present)
- State Route 186 (1964-1969)
State Route 187 (1964-present)
State Route 188 (1972-present)
- State Route 188 (1964-1965)
State Route 189 (1964-present)

State Route 190 (1934-present)

State Route 191 (1964-present)
State Route 192 (1964-present)
State Route 193 (1964-present)
- State Route 194 (1964-1965)
- State Route 194 (1972/1974-1982/1982)

State Route 195 (by 1947 [USGS]-present)
- State Route 195 (1934-late 1930s)

- State Route 196 (1964-1965)
State Route 197 (1964-present)

State Route 198 (1934-present)
U.S. Route 199 (1928-present)

State Route 200 (1964-present)
State Route 201 (1964-present)
State Route 202 (1964-present)
State Route 203 (1964-present)
State Route 204 (1964-present)
Interstate 205 (1957/1964-present)
- State Route 206 (1964-1991)
State Route 207 (1979-present)
- State Route 207 (1964-1972)
- State Route 208 (1964-1984)
- State Route 209 (1964-2003)
Interstate 210 (1955/1964-present)
State Route 210 (1998-present)
State Route 211 (1984-present)
- State Route 211 (1964-1965)
- State Route 212 (1964-1965)
State Route 213 (1964-present)
- State Route 214 (1964-1981)
Interstate 215 (1982/1982-present)
- State Route 215 (1964-1965)
State Route 216 (1964-present)
State Route 217 (1964-present)
State Route 218 (1964-present)
State Route 219 (1964-present)
State Route 220 (1964-present)
State Route 221 (1964-present)
State Route 222 (1964-present)
State Route 223 (1964-present)
- State Route 224 (1964-1996)
State Route 225 (1964-present)
- State Route 226 (1964-1965)
State Route 227 (1964-present)
- State Route 228 (1964-1998)
State Route 229 (1964-present)
State Route 230 (1964-present)
- State Route 231 (1964-1972)
- State Route 231 (1988-1996)
State Route 232 (1964-present)
State Route 233 (1964-present)
State Route 234 (1964-present)
State Route 235 (1964-present)
State Route 236 (1964-present)
State Route 237 (1964-present)
Interstate 238 (1983-present)
State Route 238 (1964-present)
State Route 239 (1964-present)
- State Route 240 (1964-1968)
State Route 241 (1988-present)
- State Route 241 (1964-1965)
- State Route 241 (1968-1972)
State Route 242 (1964-present)
State Route 243 (1970-present)
- State Route 243 (1964-1968)
State Route 244 (1964-present)
State Route 245 (1972-present)
- State Route 245 (1964-1965)
State Route 246 (1964-present)
State Route 247 (1964-present)
- State Route 248 (1964-1992)
State Route 249 (1964-present)
- State Route 250 (1964-1981)
State Route 251 (1964-present)
- State Route 252 (1964-1994)
State Route 253 (1964-present)
State Route 254 (1964-present)
State Route 255 (1964-present)
- State Route 256 (1965-1994)
State Route 257 (1965-present)
State Route 258 (1965-present)
State Route 259 (1965-present)
State Route 260 (1965-present)
State Route 261 (1991-present)
- State Route 261 (1965-1972)
State Route 262 (1965-present)
State Route 263 (1965-present)
State Route 265 (1965-present)
State Route 266 (1965-present)
State Route 267 (1965-present)
- State Route 268 (1965-1970)
State Route 269 (1972-present)
State Route 270 (1970-present)
State Route 271 (1970-present)
State Route 273 (1967-present)
- State Route 274 (1965-1999)
- State Route 275 (1967-1996)
State Route 276 (1965-present)
Interstate 280 (1955/1964-present)
State Route 281 (1970-present)
State Route 282 (1967-present)
State Route 283 (1970-present)
State Route 284 (1970-present)
- State Route 285 (1970-1998)
State Route 299 (1964-present)

- U.S. Route 299 (mid-1930s-1964)

Interstate 305 (1980-present)
State Route 330 (1972-present)
State Route 371 (1974-present)
Interstate 380 (1968/1969-present)
State Route 380 (1969-present)

U.S. Route 395 (by 1936-present)
- U.S. Route 399 (by 1936-1964)

Interstate 405 (1955/1964-present)

- State Route 440 (1934-by 1956)
- U.S. Route 466 (mid-1930s-1964)

- Interstate 480 (1955/1964-1965)
- State Route 480 (1965-1991)
Interstate 505 (1947/1964-present)
Interstate 580 (1947/1964-present)
Interstate 605 (1955/1964-present)
State Route 605 (1968-present)
Interstate 680 (1955/1964-present)
Interstate 710 (1983/1984-present)

- State Route 740 (1934-by 1956)

Interstate 780 (1973/1976-present)
Interstate 805 (1958/1964-present)
Interstate 880 (1983/1984-present)
- Interstate 880 (1955/1964-1980/1981)
State Route 905 (1984/1986-present)
Interstate 980 (1976/1981-present)