
Littleton
- County:
- Arapahoe County
- County Seat:
- Yes
- Area (mi²):
- 12.619
- State:
- Colorado
Littleton is a city located in Arapahoe County, Colorado. Littleton has a 2025 population of 43,688. It is also the county seat of Arapahoe County. Littleton is currently declining at a rate of -0.86% annually and its population has decreased by -4.18% since the most recent census, which recorded a population of 45,595 in 2020.
The average household income in Littleton is $126,140 with a poverty rate of 6.31%. The median age in Littleton is 40.2 years: 39 years for males, and 41.9 years for females.