Marble Falls is a city located in Burnet County Texas. With a 2020 population of 7,344, it is the 294th largest city in Texas and the 3847th largest city in the United States . Marble Falls is currently growing at a rate of 2.13% annually and its population has increased by 20.85% since the most recent census, which recorded a population of 6,077 in 2010. Marble Falls reached it's highest population of 7,344 in 2021. Spanning over 15 miles, Marble Falls has a population density of 506 people per square mile.
The average household income in Marble Falls is $55,006 with a poverty rate of 9.08%. The median rental costs in recent years comes to $797 per month, and the median house value is $191,600. The median age in Marble Falls is 42.8 years, 32.8 years for males, and 49.9 years for females.