Doolittle is a census-designated place (CDP) in Hidalgo County, Texas, United States.

[4] According to the United States Census Bureau, the CDP has a total area of 4.3 square miles (11 km2), all land.

Doolittle is served by the Edinburg Consolidated Independent School District (ECISD).

[22][23] Zoned elementary campuses serving sections include Crawford, Guerra, Monte Christo, and Villareal (grades PK-5).

All of Hidalgo County is in the service area of South Texas College.