| Official Name: | Diamond Lake Township |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Iowa |
| Subdivision Type2: | County |
| Subdivision Name2: | Dickinson |
| Area Total Km2: | 74.58 |
| Area Land Km2: | 73.19 |
| Area Water Km2: | 1.38 |
| Area Total Sq Mi: | 28.79 |
| Area Land Sq Mi: | 28.26 |
| Area Water Sq Mi: | 0.53 |
| Area Water Percent: | 1.85 |
| Population As Of: | 2000 |
| Population Total: | 296 |
| Population Density Km2: | 4 |
| Population Density Sq Mi: | 10.5 |
| Elevation M: | 426 |
| Elevation Ft: | 1398 |
| Coordinates: | 43.4697°N -95.2061°W |
| Timezone: | CST |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Postal Code Type: | ZIP codes |
| Postal Code: | 51347, 51360 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 0467715 |
Diamond Lake Township is one of twelve townships in Dickinson County, Iowa, United States. As of the 2000 census, its population was 296.[1]
According to the United States Census Bureau, Diamond Lake Township covers an area of 28.79 square miles (74.58 square kilometers); of this, 28.26 square miles (73.19 square kilometers, 98.14 percent) is land and 0.53 square miles (1.38 square kilometers, 1.85 percent) is water.
(This list is based on USGS data and may include former settlements.)