Deaf Smith County is a county located in the U.S. state of Texas. As of the 2000 census, the population was 18,561. Its county seat is Hereford.
The Hereford Micropolitan Statistical Area includes all of Deaf Smith County.
This county was also selected as an alternate site for a possible nuclear waste disposal repository but was later dropped as an official alternate site after funding was shifted to Yucca Mountain. Jesse Frank Ford, founder of Arrowhead Mills, led the opposition to the Deaf Smith site on grounds of contamination of the Ogalalla Aquifer, the source of much of the water supply for West Texas.
Deaf Smith County has been ranked the 9th best place for less affluent Texans to live, according to Texas Home Quarterly.
There were 6,180 households out of which 41.00% had children under the age of 18 living with them, 61.00% were married couples living together, 12.60% had a female householder with no husband present, and 21.80% were non-families. 19.70% of all households were made up of individuals and 10.00% had someone living alone who was 65 years of age or older. The average household size was 2.96 and the average family size was 3.41.
In the county, the population was spread out with 33.30% under the age of 18, 9.60% from 18 to 24, 25.50% from 25 to 44, 19.40% from 45 to 64, and 12.10% who were 65 years of age or older. The median age was 31 years. For every 100 females there were 95.50 males. For every 100 females age 18 and over, there were 91.90 males.
The median income for a household in the county was $29,601, and the median income for a family was $32,391. Males had a median income of $26,090 versus $19,113 for females. The per capita income for the county was $13,119. About 19.30% of families and 20.60% of the population were below the poverty line, including 26.30% of those under age 18 and 15.70% of those age 65 or over.