1,909 Santa Fe 4 Sandoval 125,988 3,710 Rio Rancho 5 San Juan 124,131 5,514 Farmington 6 Valencia 72,207 1,068 Los Lunas 7 McKinley 70,724 5,449 Gallup 8 Chaves 63,060 6,071 Roswell 9 Otero 62,776 6,627 Alamogordo 10 Lea 59,155 4,393 Hobbs [ edit ] Race and ancestry According to the Census