Pleasanton is a census-designated place in the Williams Valley of Catron County, south of Glenwood and north of Cliff, in the U.S. state of New Mexico.

[4] It was renowned as a safehaven for Mormon polygamists for several years.

[6] The 24th child of Mormon polygamist Jacob Hamblin was born there in 1884.

[8] Other polygamists, including William Maxwell, made their home in Pleasanton specifically to evade the law.

[9] In 1885 a band of Chiricahua Apache killed a group of U.S. Army soldiers in a triple cross-fire trap near Pleasanton.