Alamo is a city located in Hidalgo County Texas. With a 2020 population of 20,346, it is the 138th largest city in Texas and the 1829th largest city in the United States . Alamo is currently growing at a rate of 1.08% annually and its population has increased by 10.86% since the most recent census, which recorded a population of 18,353 in 2010. Alamo reached it's highest population of 20,346 in 2021. Spanning over 8 miles, Alamo has a population density of 2,709 people per square mile.
The average household income in Alamo is $51,399 with a poverty rate of 26.84%. The median rental costs in recent years comes to $601 per month, and the median house value is $72,000. The median age in Alamo is 31.1 years, 28.3 years for males, and 32.8 years for females.