What Borders New Mexico? Complete Neighbor List

New Mexico (The Land of Enchantment) shares borders with four U.S. states and two Mexican states:

DirectionNeighborBorder LengthNotes
NorthColorado~320 mi (515 km)Straight line (37°N parallel); Four Corners at NW tip.
Northeast (short)Oklahoma~50 mi (80 km)Only via the "Oklahoma Panhandle" (Cimarron County).
EastTexas~500 mi (800 km)Follows 32°N parallel (mostly); Rio Grande forms southern portion.
SouthChihuahua, Mexico~300 mi (480 km)Desert border; crossings: Columbus–Palomas, Santa Teresa–San Jerónimo.
SouthwestSonora, Mexico~80 mi (130 km)Short stretch; crossing: Antelope Wells–El Berrendo (limited hours).
WestArizona~390 mi (630 km)Meridian 32°W; Four Corners at NE tip (only 4-state point in US).

Additional Context

  • International border total: ~380 mi (610 km) with Mexico.
  • Time zones: NM is Mountain Time; AZ (mostly) no DST → same time in summer, 1 hr diff in winter.
  • Geography: Chihuahuan Desert (south), Sangre de Cristo Mtns (north), Llano Estacado (east), Colorado Plateau (west).

New Mexico's borders are almost entirely survey lines (parallels/meridians) — a legacy of 19th-century territorial politics.

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