Alton is a city in Hidalgo County, Texas, United States.

[6] On September 21, 1989, the Alton bus crash occurred; a Dr. Pepper truck hit a Mission Consolidated Independent School District school bus and caused it to fall into a caliche pit, killing 21 students.

As of the 2020 United States census, there were 18,198 people, 4,566 households, and 3,959 families residing in the city.

[15] In 2018 city manager Jorge Arcaute stated that some families moved to Alton specifically to put their children in the Mission CISD and Sharyland ISD schools.

[22] Sharyland ISD operates Jesse Jensen Elementary School in Alton.

[14] Sharyland ISD sections of Alton are zoned to Jensen, North Junior High School in McAllen, and Sharyland Pioneer High School in unincorporated Hidalgo County.

[23] La Joya ISD operates Domingo Treviño Middle School in Alton.

The park includes a memorial to the 1989 bus accident, with 21 crosses, one per deceased victim, and a statue of Jesus Christ.