| Etchojoa Municipality | |
| Settlement Type: | Municipality |
| Native Name: | Municipio de Etchojoa |
| Pushpin Label Position: | above |
| Pushpin Map Caption: | Location in Mexico |
| Subdivision Type: | Country |
| Subdivision Name: |  Mexico |
| Subdivision Type1: | State |
| Subdivision Name1: | Sonora |
| Subdivision Type2: | Capital |
| Leader Title: | Mayor |
| Leader Name: | Jesús Tadeo Mendívil Valenzuela |
| Established Date: | October 15, 1909 |
| Area Total Km2: | 949.85 |
| Population As Of: | 2020 |
| Population Total: | 61,309 |
| Timezone: | Mountain Standard Time |
| Utc Offset: | -7 |
| Timezone Dst: | No DST |
| Utc Offset Dst: | -7 |
| Elevation M: | 50 |
| Postal Code: | 85280–85288 |
| Area Code: | 647 |
| Official Name: | Municipality of Etchojoa |
| Elevation Max M: | 200 |
| Native Name Lang: | Es |
| Seat: | Etchojoa |
Etchojoa Municipality is one of the seventy-two municipalities in the Mexican state of Sonora.[1] It is located in the southern part of the state, in the Mayo Valley area and on the coast of the Gulf of California. It municipal seat and most inhabited town is Etchojoa. Other important town include Bacobampo,, and . The municipality was founded on October 15, 1909.
According to the Population and Housing Census carried out in 2020 by the National Institute of Statistics and Geography (INEGI), the municipality has a total of 61,309 inhabitants,[2] ranking 11th among the most populated in the state, and has an area of 949.85 km².[3] Its gross domestic product per capita is USD $5,701 and its human development index (HDI) is 0.7223. Like most municipalities in Sonora, the name was given because of its municipal head. [4]