Littleton Population

1880–2026

46,208

2026 projection

1.2% since 2020 (increase)

010K20K30K40K50K18801900192019401960198020002020

Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal 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 Littleton. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202646,208-380.08%
202546,246+8191.80%
202445,427+4601.02%
202344,967+820.18%
202244,885-4450.98%
202145,330-3220.71%
202045,652+2820.62%
201945,370-940.21%
201845,464+1150.25%
201745,349+4270.95%

Showing 10 of 29 years.

The 2020 row compares the April 1 Census count with the July 1, 2019 estimate (about nine months). Its Growth and Annual change therefore do not represent a full year.

Growth since 2020, compared

Littleton is growing slower than Arapahoe County, Colorado, and the U.S.

  • Colorado+3.9%
  • United States+3.1%
  • Arapahoe County+2.8%
  • Littleton+1.5%

Change from July 1, 2020 to July 1, 2025 population estimates—not annualized growth or site projections.

Source: U.S. Census Bureau. U.S. totals are summed from the 50 states and D.C.; unavailable comparisons are omitted.

Littleton Demographics

40.8median age

Median age

Female42.7 yrs
Male39.2 yrs

Adults

36,503
8,989 seniors (65+) · 25% of adults27,514 other adults

Sex

Female 50.7% · 22,674Male 49.3% · 22,036

Population by age

MaleFemale85+ years, male: 49485+ years, female: 75380–84 years, male: 38980–84 years, female: 54675–79 years, male: 63675–79 years, female: 94770–74 years, male: 1,12470–74 years, female: 1,12265–69 years, male: 1,29065–69 years, female: 1,68860–64 years, male: 1,40060–64 years, female: 1,77355–59 years, male: 1,69355–59 years, female: 1,60350–54 years, male: 1,12250–54 years, female: 1,09945–49 years, male: 93645–49 years, female: 1,24640–44 years, male: 1,55840–44 years, female: 1,39335–39 years, male: 1,89435–39 years, female: 1,76630–34 years, male: 2,04230–34 years, female: 1,80825–29 years, male: 1,63325–29 years, female: 1,68220–24 years, male: 1,13120–24 years, female: 99815–19 years, male: 1,29615–19 years, female: 1,07510–14 years, male: 1,18310–14 years, female: 9295–9 years, male: 1,1215–9 years, female: 1,3900–4 years, male: 1,0940–4 years, female: 85685+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–45005001K1K1.5K1.5K

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 447 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

Littleton Income

$98,839median household income

Median household income

$98,839

Half of households earn more, half earn less

Median earnings

$63,347

Typical yearly pay for a worker 25 or older.

Poverty rate

6.1%

About 1 in 16 residents

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

Littleton 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%51%46%
Never married32%34%30%
Divorced13%12%14%
Widowed6%3%8%
Separated1%<1%2%

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

Sources

14 sources

Population

American Community Survey, 2024 5-year

Additional sources