There are 33 cities in Arapahoe County, Colorado.
Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)
City | Rank | 2024 Population | 2020 Population | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Denver | 1 | 716,234 | 717,606 | -0.05% | 4,679 | 153.1 | City |
| Aurora | 2 | 397,811 | 386,773 | 0.7% | 2,440 | 163.0 | City |
| Lakewood | 3 | 155,865 | 156,247 | -0.06% | 3,587 | 43.5 | City |
| Centennial | 4 | 106,445 | 108,196 | -0.41% | 3,530 | 30.2 | City |
| Highlands Ranch | 5 | 102,314 | 107,017 | 0.39% | 4,216 | 24.3 | CDP |
| Parker | 6 | 64,031 | 58,879 | 2.05% | 2,853 | 22.4 | Town |
| Littleton | 7 | 44,069 | 45,595 | -0.86% | 3,492 | 12.6 | City |
| Englewood | 8 | 34,492 | 33,623 | 0.63% | 5,257 | 6.6 | City |
| Ken Caryl | 9 | 33,683 | 33,815 | 0.27% | 3,426 | 9.8 | CDP |
| Columbine | 10 | 26,217 | 25,892 | 0.53% | 3,952 | 6.6 | CDP |
| Four Square Mile | 11 | 24,990 | 21,993 | 7.69% | 9,249 | 2.7 | CDP |
| Greenwood Village | 12 | 15,057 | 15,649 | -0.97% | 1,822 | 8.3 | City |
| Lone Tree | 13 | 13,990 | 14,280 | -0.52% | 1,426 | 9.8 | City |
| Cherry Creek | 14 | 11,163 | 11,503 | 0.03% | 6,684 | 1.7 | CDP |
| Cherry Hills Village | 15 | 6,221 | 6,428 | -0.83% | 1,002 | 6.2 | City |
| Sheridan | 16 | 5,842 | 6,104 | -1.12% | 2,626 | 2.2 | City |
| Dove Valley | 17 | 5,623 | 4,943 | 0.48% | 1,795 | 3.1 | CDP |
| Meridian | 18 | 5,372 | 4,792 | 3.29% | 2,097 | 2.6 | CDP |
| Glendale | 19 | 4,396 | 4,599 | -1.15% | 7,739 | 0.6 | City |
| Bennett | 20 | 3,764 | 2,904 | 6.06% | 545 | 6.9 | Town |
| Strasburg | 21 | 3,266 | 2,987 | 1.81% | 157 | 20.8 | CDP |
| Inverness | 22 | 2,979 | 1,863 | 3.62% | 2,636 | 1.1 | CDP |
| Holly Hills | 23 | 2,848 | 2,815 | 0.85% | 4,910 | 0.6 | CDP |
| Columbine Valley | 24 | 1,735 | 1,502 | 3.46% | 1,767 | 1.0 | Town |
| Byers | 25 | 1,714 | 1,338 | 2.33% | 150 | 11.4 | CDP |
| Deer Trail | 26 | 1,648 | 1,108 | 8.92% | 1,310 | 1.3 | Town |
| Aetna Estates | 27 | 1,254 | 1,231 | 2.45% | 9,573 | 0.1 | CDP |
| Watkins | 28 | 1,156 | 746 | 7.63% | 47 | 24.7 | CDP |
| Bow Mar | 29 | 813 | 852 | -1.21% | 1,228 | 0.7 | Town |
| Foxfield | 30 | 728 | 754 | -0.95% | 550 | 1.3 | Town |
| Comanche Creek | 31 | 557 | 426 | 2.58% | 26 | 21.7 | CDP |
| Brick Center | 32 | 85 | 134 | -1.16% | 15 | 5.8 | CDP |
| Peoria | 33 | 59 | 91 | -11.94% | 4 | 13.8 | CDP |
Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.
Denver is the largest city in Arapahoe County.
Peoria is the smallest city in Arapahoe County.
There are 33 cities in Arapahoe County, Colorado.