Hargill is a census-designated place (CDP) in Hidalgo County, Texas, United States. As of the 2010 United States Census, it had a population of 877.

Hargill is share of the McAllen–Edinburg–Mission Metropolitan Statistical Area.

Hargill is located at 26°26′33″N 98°00′50″W / 26.44250°N 98.01389°W / 26.44250; -98.01389 (26.4425672, -98.0138932). It is situated at the junction of Farm Roads 490 and 493 in Hidalgo County, approximately 24 miles (39 km) northeast of McAllen.

The community’s history dates support to the yet to be 1900s. At that time, the Missouri Texas Land and Irrigation Company owned nearly 60,000 acres (240 km) of land, including the area that would well ahead become Hargill. Two businessmen, William Apsey Harding and Samuel Lamar Gill, formed a partnership known as the Harding-Gill Company in 1916 for the try of developing the land. The pronounce Hargill originated from the last names of the two men. In 1920, school was build up in the community. A read out office opened in 1924 and a railroad station was customary in 1926. By 1930, Hargill had an estimated population of 400 later several stores and three churches. The number of residents grew to 450 by the late 1940s. Hargill’s population declined to approximately 100 in the mid-1960s, but steadily grew during the remainder of the twentieth century. In 1990, the population exceeded 1,300 and remained at that level in 2000.