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 Pop. | 2020 Pop. | Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Idaho Springs | 1 | 1,677 | 1,801 | -1.81% | 703 | 2.4 | City |
| Georgetown | 2 | 1,303 | 1,117 | 3.66% | 1,303 | 1.0 | Town |
| Upper Bear Creek | 3 | 898 | 799 | -1.32% | 237 | 3.8 | CDP |
| Floyd Hill | 4 | 832 | 824 | -1.42% | 132 | 6.3 | CDP |
| Upper Witter Gulch | 5 | 713 | 725 | 7.7% | 783 | 0.9 | CDP |
| Brook Forest | 6 | 624 | 479 | 7.59% | 449 | 1.4 | CDP |
| Pine Valley | 7 | 614 | 343 | 7.72% | 746 | 0.8 | CDP |
| Downieville-Lawson-Dumont | 8 | 552 | 487 | -0.54% | 710 | 0.8 | CDP |
| Echo Hills | 9 | 422 | 414 | 7.65% | 743 | 0.6 | CDP |
| Empire | 10 | 322 | 340 | -1.53% | 1,197 | 0.3 | Town |
| St. Mary's | 11 | 219 | 416 | -1.79% | 152 | 1.4 | CDP |
| Blue Valley | 12 | 200 | 263 | 8.11% | 190 | 1.1 | CDP |
| Silver Plume | 13 | 190 | 205 | -2.06% | 736 | 0.3 | Town |
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.
Idaho Springs is the largest city in Clear Creek County.
Silver Plume is the smallest city in Clear Creek County.
There are 13 cities in Clear Creek County, Colorado.