McCook is an unincorporated community in Hidalgo County, Texas, United States.

[1] The community is located on Farm to Market Road 681, 30 miles (48 km) northwest of McAllen.

By 1936, the community had its own school district, post office, and church; for the next few decades, its population hovered near 40 residents.

As of 2000, the population was 91; the residents were spread out over a rural area.

This article about a location in Hidalgo County, Texas is a stub.