| Official Name: | Grey Cloud Island Township, Minnesota |
| Settlement Type: | Township |
| Pushpin Map: | Minnesota#USA |
| Pushpin Label Position: | left |
| Pushpin Map Caption: | Location within the state of Minnesota |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Minnesota |
| Subdivision Type2: | County |
| Subdivision Name2: | Washington |
| Unit Pref: | Imperial |
| Area Total Km2: | 10.0 |
| Area Land Km2: | 8.1 |
| Area Water Km2: | 1.9 |
| Area Total Sq Mi: | 3.9 |
| Area Land Sq Mi: | 3.1 |
| Area Water Sq Mi: | 0.7 |
| Population As Of: | 2010 |
| Population Total: | 307 |
| Population Density Km2: | 37.9 |
| Population Density Sq Mi: | 98.2 |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation M: | 218 |
| Elevation Ft: | 715 |
| Coordinates: | 44.8086°N -92.9944°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 55071 |
| Area Code: | 651 |
| Blank Name: | FIPS code |
| Blank Info: | 27-25982[1] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 0664354[2] |
Grey Cloud Island Township is a township in Washington County, Minnesota, United States. The population was 307 at the 2010 census. The township formerly included all of Lower Grey Cloud Island but that area has been annexed by the neighboring city of Cottage Grove. Since then the township has been made up of Upper Grey Cloud Island, an area to the north bounded by Grey Cloud Trail and Geneva Avenue, and a small piece of Lower Grey Cloud Island.
According to the United States Census Bureau, the township has a total area of 3.9sqmi, of which 3.1sqmi is land and 0.7sqmi (18.91%) is water. County 75 serves as a main route in the township.
At the 2010 census there were 307 people, 117 households, and 76 families in the township. The population density was 98.2sp=usNaNsp=us. There were 123 housing units at an average density of 39.3sp=usNaNsp=us. The racial makeup of the township was 97.39% White, 0.33% African American, 0.33% Native American, 0.98% from other races, and 0.98% from two or more races. Hispanic or Latino of any race were 1.63%.
Of the 117 households, 25.6% had children under the age of 18 living with them, 57.3% were married couples living together, 3.4% had a female householder with no husband present, and 35.0% were non-families. 23.1% of households were one person, and 10.3% were one person aged 65 or older. The average household size was 2.62 and the average family size was 3.07.
In the township the population was spread out, with 22.1% under the age of 18, 7.8% from 18 to 24, 28.3% from 25 to 44, 27.4% from 45 to 64, and 14.3% 65 or older. The median age was 40 years. For every 100 females, there were 113.2 males. For every 100 females age 18 and over, there were 107.8 males.
The median household income was $55,714 and the median family income was $65,000. Males had a median income of $48,125 versus $26,528 for females. The per capita income for the township was $26,150. None of the families and 7.2% of the population were living below the poverty line.
In the 50 States of Fright three-episode story "Grey Cloud Island (Minnesota)", four pledges (Asa Butterfield, Dan Ginnane, Drew Ray Tanner and Alex Fitzalan) are ready and eager to find out if they're Kappa material. But this initiation ritual is about to get way darker than they expected when they discover a chained victim deep in the woods.