Thornton Population

1960–2026

149.32K

2026 projection

5% since 2020 (increase)

050K100K150K200K1960197019801990200020102020

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 Thornton. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
2026149,318+1,5521.05%
2025147,766-6040.41%
2024148,370+2,4371.67%
2023145,933+2,5751.80%
2022143,358+5310.37%
2021142,827+6650.47%
2020142,162-4,7673.24%
2019146,929+1,7701.22%
2018145,159+2,9752.09%
2017142,184+3,7592.72%

Showing 10 of 22 years.

Thornton Demographics

34.7median age

Median age

Female35.3 yrs
Male33.9 yrs

Adults

108,211
15,590 seniors · 14%92,621 other adults

Sex

Female 50% · 72,102Male 50% · 72,085

Population by age

MaleFemale85+ years, male: 29985+ years, female: 58280–84 years, male: 69180–84 years, female: 99975–79 years, male: 1,36075–79 years, female: 1,32970–74 years, male: 1,99270–74 years, female: 2,43665–69 years, male: 2,70365–69 years, female: 3,19960–64 years, male: 3,19260–64 years, female: 3,73355–59 years, male: 4,24955–59 years, female: 3,45650–54 years, male: 4,21550–54 years, female: 4,43245–49 years, male: 5,03045–49 years, female: 4,72440–44 years, male: 5,45840–44 years, female: 5,95335–39 years, male: 5,78135–39 years, female: 5,58730–34 years, male: 5,57330–34 years, female: 5,99625–29 years, male: 5,73125–29 years, female: 5,10320–24 years, male: 5,85820–24 years, female: 5,31315–19 years, male: 4,93115–19 years, female: 4,35910–14 years, male: 5,55010–14 years, female: 6,4315–9 years, male: 4,5735–9 years, female: 4,3200–4 years, male: 4,8990–4 years, female: 4,15085+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 1,442 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

Thornton Income

$103,088median household income

Median household income

$103,088

Half of households earn more, half earn less

Median earnings

$59,385

Typical yearly pay for a worker 25 or older.

Poverty rate

7%

About 1 in 14 residents

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

Thornton Marital Status

52% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married52%53%51%
Never married34%37%31%
Divorced10%8%12%
Widowed3%1%5%
Separated1%<1%1%

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