Blood & Biohazard Cleanup Near Downtown Murillo Murillo, TX

Murillo is an unincorporated census-designated place in south-central Hidalgo County in the Rio Grande Valley, bordered on the west by Edinburg, the county seat, and counted as part of the McAllen–Edinburg–Mission metropolitan area.

Murillo first appeared in the 2000 census under a misrecorded name — "Nurillo" — and the Census Bureau corrected the community's name to Murillo in time for the 2010 census.

Murillo has grown fast with the Rio Grande Valley: its population rose from 5,056 in 2000 to 7,344 in 2010 and 9,158 at the 2020 census, even though the community lost land to annexation along the way.

About 96% of Murillo's residents identified as Hispanic or Latino at the 2020 census, one of the highest shares of any community its size in Texas.

In 2013 the City of Edinburg annexed about 2,000 acres in and around the community, shrinking Murillo's area to about 6.9 square miles — the annexation even took in Edinburg High School, which had stood inside the Murillo CDP at the 2010 census.

Murillo's households are notably large: the 2010 census counted 1,825 households averaging about four people each, well above the national norm.

Murillo is served by the Edinburg Consolidated Independent School District, with two elementary schools — M. D. Betts Elementary and Dr. Thomas Esparza Elementary — located inside the community, and all of its high school students zoned to Edinburg High School.

All of Hidalgo County, including Murillo, lies in the service area of South Texas College, and the South Texas Independent School District's magnet schools also serve Murillo families.