| Official Name: | Twin Lake Township |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | Hancock |
| Area Total Km2: | 92.64 |
| Area Land Km2: | 91.48 |
| Area Water Km2: | 1.16 |
| Unit Pref: | Imperial |
| Area Total Sq Mi: | 35.77 |
| Area Land Sq Mi: | 35.32 |
| Area Water Sq Mi: | 0.45 |
| Area Water Percent: | 1.25 |
| Population As Of: | 2000 |
| Population Total: | 197 |
| Population Density Km2: | 2.2 |
| Population Density Sq Mi: | 5.6 |
| Elevation M: | 383 |
| Elevation Ft: | 1257 |
| Coordinates: | 42.9569°N -93.6661°W |
| Timezone: | CST |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Postal Code Type: | ZIP codes |
| Postal Code: | 50438, 50439, 50447 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 0468801 |
Twin Lake Township is one of sixteen townships in Hancock County, Iowa, USA. As of the 2000 census, its population was 197.[1]
Twin Lake Township was organized in 1882.[2] It was named from two lakes in the southern part of the township.[3]
According to the United States Census Bureau, Twin Lake Township covers an area of 35.77 square miles (92.64 square kilometers); of this, 35.32 square miles (91.48 square kilometers, 98.75 percent) is land and 0.45 square miles (1.16 square kilometers, 1.25 percent) is water.