Colorado · Census place 0812815

Centennial, Colorado

Centennial is a city in Arapahoe County, Colorado with an estimated 108,853 residents on July 1, 2024. It is the 11th largest of 149 incorporated places of 1,000+ people in the state.

Population 2024
108,853
#11 of 149 in Colorado
Change since 2020
+0.6%
+651 people
Land area
30.2 sq mi
+ 0.15 sq mi water
Density
3,609 / sq mi
State median 1,848
Orange pin: Centennial. Shaded: its county. Dark pin: Denver.

Centennial population, 2020 to 2024

Centennial added 651 residents from July 2020 to July 2024, a change of +0.6%. In the latest year it moved by -210. Among 79 Colorado places of 5,000 or more, that growth ranks 52nd; the median place changed by +3.0%. The median place of 5,000+ in Colorado has 14,061 people, so Centennial is 7.7 times that size.

108.2k2020107.4k2021107.5k2022109.1k2023108.9k2024
July 1 estimates. The April 2020 estimates base was 108,425. The axis starts above zero so yearly changes are visible.

Centennial covers 30.16 square miles of land and 0.15 of water, for 3,609 people per square mile of land. The median Colorado place of 5,000+ has 1,848, so Centennial is denser than the typical town.

What county Centennial is in

All of Centennial's residents live in Arapahoe County, which had 666,918 residents in 2024. Centennial holds 16.3% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Centennial

6 ZIP Code Tabulation Areas (ZCTAs) overlap Centennial by at least 10% of the ZCTA's or the city's land: 80015, 80016, 80111, 80112, 80121, 80122. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a city that annexed land after 2020 may reach into ZIP codes not listed here.

Where Centennial is

The Census internal point of Centennial is at 39.590900, -104.863800. Denver, the capital, is 12.1 miles NNW in a straight line. The nearest larger place is Aurora, CO (403,130 people), 11.2 miles away. The ground at the internal point is about 1,748 m (5,735 ft) above sea level.

Internal point

Decimal
39.590900, -104.863800
DMS
39°35'27.24"N 104°51'49.68"W
UTM
13N 511695.1E 4382361.6N
Geohash
9xj3jz298
Plus code
85FQH4RP+9F
Time zone
America/Denver

Daylight in Centennial

At 39.59° N, Centennial gets about 14 h 58 min of daylight around the June solstice and 9 h 22 min around the December solstice, a swing of 5 h 36 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026. Month-by-month sunrise and sunset times are on the Centennial daylight page.

Places near Centennial

The eight nearest incorporated places of 1,000+ in Colorado, measured between internal points. The closest is Greenwood Village, 3.1 miles away, with 15,288 people.

Questions people ask

What is the population of Centennial, CO?

108,853 on July 1, 2024, in the Census Vintage 2024 estimates. That is up 651 (0.6%) from 108,202 in July 2020.

What county is Centennial in?

Arapahoe County. All of its residents live in that county.

What ZIP codes cover Centennial?

6 ZIP Code Tabulation Areas overlap it by at least 10% of either area: 80015, 80016, 80111, 80112, 80121, 80122.

How far is Centennial from Denver?

12.1 miles (19.5 km) in a straight line, heading NNW from Centennial.

What is the nearest larger city to Centennial?

Aurora, CO, with 403,130 residents, 11.2 miles away between internal points.

Sources and data as of

Data as of: Census Vintage 2024 subcounty estimates (July 1, 2024), 2024 Gazetteer places, 2020 ZCTA to place relationship file.

  1. 01Census Vintage 2024 subcounty population estimates
  2. 02Census 2024 Gazetteer, places
  3. 03Census 2020 ZCTA to place relationship file
  4. 04Census 2024 cartographic boundary file, counties (1:5,000,000)
  5. 05Open-Meteo forecast API (time zone and Copernicus GLO-90 elevation) (last verified 2026-09-30)

How every number is computed: methodology. Spotted a wrong figure? Report an error.