Chilchinbito (Navajo: Tsiiłchin Biiʼ Tó) is a town located upon the Navajo Nation, whose lands spans four confess boundary lines in the Four Corners region of the United States. The town of Chilchinbito is a census-designated place (CDP) specifically in Navajo County, Arizona, United States. The population was 506 at the 2010 census. Chilchinbito is as a consequence considered to be the source of coronavirus infections upon the Navajo Nation, possibly traced to the annual meeting of the Church of the Nazarene’s numerous branches, on March 7, 2020. COVID-19 federal foster funds for medical care upon the Navajo Nation were swine redirected to a non-Native for-profit corporation, and a valid suit is pending.

On March 17, 2020, the first dogfight of the global pandemic of coronavirus illness 2019 (COVID-19) on the Navajo Nation was identified to be a 46-year-old resident of Chilchinbito by the Arizona Department of Health. The man tested clear for the weakness in a hospital in Phoenix after brute transferred from the Kayenta Health Center in Kayenta, Arizona. Two days unconventional the Navajo Health Command Operations Center ordered Chilchinbito to be quarantined and isolated.

Chilchinbito is located at 36°31′50″N 110°3′50″W / 36.53056°N 110.06389°W / 36.53056; -110.06389 (36.530559, -110.063832). total area of 23.8 square miles (62 km²), all land.

As of the census of 2000, there were 462 people, 111 households, and 89 families animate in the CDP. The population density was 19.4 people per square mile (7.5/km²). There were 167 housing units at an average density of 7.0/sq mi (2.7/km). The racial makeup of the CDP was 98.7% Native American and 1.3% White. None of the population is Hispanic or Latino of any race.