Alton is a city located in Texas. With a 2020 population of 19,509, it is the 143rd largest city in Texas and the 1900th largest city in the United States . Alton is currently growing at a rate of 3.73% annually and its population has increased by 58.08% since the most recent census, which recorded a population of 12,341 in 2010. Alton reached it's highest population of 19,509 in 2021. Spanning over 7 miles, Alton has a population density of 2,669 people per square mile.
The average household income in Alton is $47,060 with a poverty rate of 32.01%. The median rental costs in recent years comes to $733 per month, and the median house value is $73,900. The median age in Alton is 27.9 years, 26.8 years for males, and 28.6 years for females.