Blackwater is a native village and census-designated place (CDP) on the Gila River Reservation in Pinal County, Arizona, United States.

According to the United States Census Bureau, the CDP has a total area of 17.9 square miles (46 km2), all land.

13% of all households were made up of individuals, and 4% had someone living alone who was 65 years of age or older.

In 2010, Blackwater had the lowest median household income of all places in the United States with a population over 1,000.

[6] Blackwater is part of District 1 of the Gila River Indian Community.

Gila River Transit operates a service connecting Blackwater with Sacaton.