Colfax County is a county in the U.S. state of New Mexico. As of the 2020 census, the population was 12,387. Its county seat is Raton. It is south from the Colorado state line. This county was named for Schuyler Colfax (1823–1885), seventeenth Vice President of the United States under U.S. President Ulysses S. Grant.

Raton is a city and the county seat of Colfax County in northeastern New Mexico. The city is located just south of Raton Pass. The city is also located about 6.5 miles south of the New Mexico–Colorado border and 85 miles west of Texas.