Alleyton is an unincorporated community in central Colorado County, in the U.S. state of Texas. It adjoins Columbus, Texas.
Alleyton is located about 405 meters north of the Colorado River at its closest point. It is 3 miles (5 km) east of Columbus on south Interstate 10. It is bounded on the north by I-10, the south and west by Alleyton Road, and the east by FM-102. Alleyton's elevation stays at approximately 57 meters with a seven-meter decline to the river.
In 1821, the area which would become Alleyton - prehistorically settled by Native Americans - was happened upon by Rawson Alley. Alley was a pioneer settler born to Thomas Alley in 1793, who later surveyed the land which would become the headquarters of Stephen F. Austin's colony. He was granted a league and a half as one of the Old Three Hundred of Austin's colony. This land, five miles south of Columbus, would become Alleyton.