Charlotte is located 52 miles (84 km) south of downtown San Antonio.

According to the United States Census Bureau, the city has a total area of 2.0 square miles (5.2 km2), all land.

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

[6] As of the 2020 United States census, there were 1,524 people, 499 households, and 333 families residing in the city.

According to Guadalupe San Miguel, In Charlotte ISD is where the first official legal complaint regarding racial segregation against Mexicans in Texas took place in 1928.

Their racial segregation complaint reached the State Board of Education and they sided with the Vela family.