Areas are tribally managed service units defined by the Indian Health Service.
The Arizona Department of Health Services has so far suppressed from the public case data in ZIP codes with majority Native American populations. In order to measure rates among areas comparable to ZIP codes, The Republic used Indian Health Service tribally managed service units and Navajo Nation population totals by chapter compiled by New Mexico Department of Public Health epidemiologist Tom Scharmen.
Data as of May 21
Graphic by Justin Price | The Republic