Argo, TexasArgo is an unincorporated community in Titus County, Texas, United States.HistoryArgo is situated on Farm to [Market Road 1001]. The town emerged in the 1880s. A post office operated from 1895 to 1907. It operated in the general store of the first postmaster, James S. Rountree. By 1890, the town was used as a trading center for farmers north of Mount Pleasant. By 1990 [United States census|1990], the population was 26.