Round Rock Population

1880–2026

145.05K

2026 projection

20.3% since 2020 (increase)

050K100K150K200K18801900192019401960198020002020

Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Round Rock. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
2026145,048+3,7662.67%
2025141,282+5,6614.17%
2024135,621+4,3063.28%
2023131,315+3,9753.12%
2022127,340+3,2102.59%
2021124,130+3,5742.96%
2020120,556-13,0239.75%
2019133,579+4,5333.51%
2018129,046+5,2704.26%
2017123,776+2,8212.33%

Showing 10 of 30 years.

Round Rock Demographics

36.2median age

Median age

Female37.2 yrs
Male35 yrs

Adults

97,693
14,300 seniors · 15%83,393 other adults

Sex

Female 50.6% · 64,619Male 49.4% · 63,167

Population by age

MaleFemale85+ years, male: 43885+ years, female: 1,06980–84 years, male: 71280–84 years, female: 65975–79 years, male: 1,05375–79 years, female: 1,32270–74 years, male: 1,60270–74 years, female: 2,62265–69 years, male: 2,25165–69 years, female: 2,57260–64 years, male: 2,78960–64 years, female: 3,35355–59 years, male: 3,95155–59 years, female: 2,99050–54 years, male: 4,61950–54 years, female: 5,18545–49 years, male: 4,04345–49 years, female: 4,51440–44 years, male: 4,95440–44 years, female: 5,40835–39 years, male: 5,14635–39 years, female: 4,97730–34 years, male: 5,02630–34 years, female: 4,96825–29 years, male: 4,71425–29 years, female: 4,30620–24 years, male: 4,99620–24 years, female: 4,11815–19 years, male: 4,36715–19 years, female: 5,11410–14 years, male: 5,06510–14 years, female: 3,6905–9 years, male: 3,9215–9 years, female: 4,1920–4 years, male: 3,5200–4 years, female: 3,56085+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–42K2K4K4K

Hover or tap an age group to see exact counts. Use the up and down arrow keys to inspect age groups.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 1,278 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Round Rock Income

$99,287median household income

Median household income

$99,287

Half of households earn more, half earn less

Median earnings

$60,929

Typical yearly pay for a worker 25 or older.

Poverty rate

7.8%

About 1 in 13 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Round Rock Marital Status

49% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married49%50%47%
Never married34%37%32%
Divorced11%9%14%
Widowed4%2%6%
Separated2%2%2%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201

Sources

10 sources, all from the U.S. Census Bureau

Population

American Community Survey, 2024 5-year