[4] The Hereford, TX Micropolitan Statistical Area includes all of Deaf Smith County.

The pronunciation of "Deaf", as used by Smith himself, is /diːf/ DEEF; however, most residents pronounce it /dɛf/ DEF.

Around 19.70% of all households was made up of individuals, and 10.00% had someone living alone who was 65 years of age or older.

The headquarters of the Deaf Smith Electric Cooperative are located in Hereford.

The cooperative provides electricity for Deaf Smith, as well as Castro, Parmer, and Oldham Counties.

[13] School districts:[15] All of the county is in the service area of Amarillo College.