The town was established in 1881 when the St. Louis Southwestern Railway was constructed through Frost on its way from Corsicana to Hillsboro.

It was named after Samuel R. Frost, attorney for the railroad and a prominent local politician.

[12][13] Males working full-time jobs had median earnings of $65,625 compared to $39,286 for females.

People of American descent made up 7.8% of the population of the town, followed by Irish at 7.7%, English at 7.0%, German at 5.3%, Hungarian at 2.4%, Scotch-Irish at 1.5%, Scottish at 1.4%, Swedish at 1.2%, and French at 0.9%.

The climate in this area is characterized by hot, humid summers and generally mild to cool winters.