Five cities in the Central Texas region topped the lists for the fastest-growing cities, with four of the five located in Williamson County, according to data released late May 20 by the U.S. Census Bureau.

Fastest-growing large cities: 2010-19

In the past decade, three area cities—New Braunfels, Cedar Park and Round Rock—noted the highest increases in large cities with populations of more than 50,000 residents.

New Braunfels’ population grew 56.4% to 90,209 from 2010-19, coming in third on that list for decade growth.

In that same time period, Cedar Park saw its population grow 44.2% to 79,462 in 2019, ranking seventh on that list.

Round Rock is the 13th-fastest-growing city, increasing its population to 133,372 in 2019. This represents a 33.5% increase from the 2010 census count of 99,887.

Fastest-growing large cities: 2018-19

The census also released a list of large cities with more than 50,000 residents that saw the greatest increases in population for a single year from July 1, 2018, to July 1, 2019.

Leander topped the list in the No. 1 spot with a 12% growth in population to 62,208 residents. The city has grown 128% since 2010, when the census estimated its population at 27,288.

Georgetown pulled in seventh on the list of fastest-growing cities from 2018-19 with its 7.2% increase in population to 79,604. The city added 32,204 residents from 2010-19, a 67.94% increase.

New Braunfels also joined this list of the fastest-growing cities, ranking ninth for its 6.8% growth in population in one year.

Populations grow, grow, grow

Here is a look at how some other Central Texas cities are growing.

Among the U.S. cities that added the most residents, the city of Austin added the fifth-most residents at 177,079 from 2010-19. The capital city went from the 14th-largest to the 11th-largest in the U.S. Austin grew 22.08% from 801,829 residents in 2010 to 978,908 residents in 2019.

At the 2010 census count, the city of Hutto had a population of 14,698. Nearly a decade later, 27,947 people call Hutto home, a 90.1% increase.

In Travis County, Pflugerville reported nearly a 40% increase in population, growing from 46,936 in 2010 to 65,380 in 2019.

In Hays County, the city of Buda had a population of 7,295 at the 2010 census count. Nearly a decade later, 16,906 people call Buda home, according to census data, a 132% increase.

The city of Kyle has nearly reached the 50,000-resident mark, growing 73% from 28,016 in 2010 to 48,393 in 2019.

San Marcos’ population also noted a sizable increase of almost 20,000 new residents. The city grew 44% from 44,894 residents in 2010 to 64,776 in 2019.