Cimarron is a village in Colfax County, New Mexico, United States, which sits on the eastern slopes of the Sangre de Cristo Mountains. The population was 1,021 at the 2010 census, making it the fourt…Cimarron is a village in Colfax County, New Mexico, United States, which sits on the eastern slopes of the Sangre de Cristo Mountains. The population was 1,021 at the 2010 census, making it the fourth most populous municipality in Colfax County.