The area in what is known as Losoya today was first settled sometime after the American Civil War. A post office was established at Losoya in 1879 and remained in operation until 1910. It was closed for ten years before it officially shut down in 1910. Before then, it was named Lecomteville for its first postmaster, Leon Lecomte, but its name was changed to Losoya when the post office was established. It may have been a misspelling of local settlers surnamed Laysawyer. Losoya had a population of 100 in 1878. At the start of the 20th century, the community had a church and a few stores. The population went down to 89 in 1910 and then to 75 from 1930 to 1940. It began to grow when San Antonio started developing into a major city, and its population jumped to 322 from 1990 through 2000.
