Lexa is a town[3] in northern Phillips County, Arkansas, United States.

According to the United States Census Bureau, the city has a total area of 0.4 square miles (1.0 km2), all land.

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

[4] As of the census[6] of 2000, there were 331 people, 132 households, and 97 families residing in the city.

25.8% of all households were made up of individuals, and 17.4% had someone living alone who was 65 years of age or older.