List of highways in New Mexico
   
Standard route signage in New Mexico
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| Highway names | |
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| Interstates: | Interstate XX (I-XX) |
| US Highways: | U.S. Route XX (US XX) |
| State: | State Road XX (NM XX) |
| System links | |
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State roads in New Mexico, along with the Interstate Highway System, and the United States Numbered Highways, fall under the jurisdiction of the New Mexico Department of Transportation. The U.S. state of New Mexico has 412 state roads, totaling 7,405.762 miles (11,918.419 km) that criss-cross the 33 counties of the state. The longest state road, New Mexico State Road 120 (NM 120), measures 119.031 miles (191.562 km) long, while the shortest, NM 446, measures 0.250 miles (402 m) long. Most highway numbers are one, two, or three digits long, however there are three highways that have four digit highway numbers. These highways are NM 1113, NM 5001, and NM 6563.
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