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 1936)
 * 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)