Hereford is a city in and the county seat of Deaf Smith County, Texas, United States. It is 48 miles southwest of Amarillo. Its population wa…Hereford is a city in and the county seat of Deaf Smith County, Texas, United States. It is 48 miles southwest of Amarillo. Its population was 14,972 at the 2020 census. It is the only incorporated locality named "Hereford" in the United States.
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