| Denver | |
| Settlement Type: | Unincorporated community |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Illinois |
| Subdivision Type2: | County |
| Subdivision Name2: | Hancock |
| Subdivision Type3: | Township |
| Subdivision Name3: | Harmony |
| Pushpin Map: | Illinois#USA |
| Pushpin Map Caption: | Location of Denver within Illinois |
| Coordinates: | 40.2906°N -91.1069°W |
| Elevation Ft: | 672 |
| Population As Of: | 2000 |
| Population Density Km2: | auto |
| Timezone1: | CST |
| Utc Offset1: | -6 |
| Timezone1 Dst: | CDT |
| Utc Offset1 Dst: | -5 |
| Postal Code Type: | Postal code |
| Postal Code: | 62321 |
Denver is a small unincorporated community located in rural Harmony Township in Hancock County in the U.S. state of Illinois, about eight miles south of Carthage and about 30 miles northeast of Quincy.
Denver was laid out in 1863, and named after Denver, Colorado.[1] A post office was established at Denver in 1863, and remained in operation until 1976.[2]