| Official Name: | Fall Lake 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: | Lake |
| Unit Pref: | Imperial |
| Area Total Km2: | 1521.2 |
| Area Land Km2: | 1183.1 |
| Area Water Km2: | 338.1 |
| Area Total Sq Mi: | 587.3 |
| Area Land Sq Mi: | 456.8 |
| Area Water Sq Mi: | 130.5 |
| Population As Of: | 2000 |
| Population Total: | 584 |
| Population Density Km2: | 0.5 |
| Population Density Sq Mi: | 1.3 |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation M: | 434 |
| Elevation Ft: | 1424 |
| Coordinates: | 47.9614°N -91.5394°W |
| Blank Name: | FIPS code |
| Blank Info: | 27-20456[1] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 0664139[2] |
Fall Lake Township is a township in Lake County, Minnesota, United States. The population was 584 at the 2000 census.
According to the United States Census Bureau, the township has a total area of 587.3sqmi, of which 456.8sqmi is land and 130.5 square miles (338.1 km2 or 22.23%) is water. It is the second-largest township in total area in Minnesota (to Angle Township in Lake of the Woods County), although the Stony River Township and Forest Area Township both have more land area than either (but much less water area).
As of the census of 2000, there were 584 people, 280 households, and 187 families residing in the township. The population density was 1.3sp=usNaNsp=us. There were 783 housing units at an average density of 1.7sp=usNaNsp=us. The racial makeup of the township was 98.63% White, 0.51% Native American, 0.68% Asian, and 0.17% from two or more races. Hispanic or Latino of any race were 0.51% of the population.
There were 280 households, out of which 16.1% had children under the age of 18 living with them, 62.1% were married couples living together, 2.5% had a female householder with no husband present, and 33.2% were non-families. 28.9% of all households were made up of individuals, and 13.2% had someone living alone who was 65 years of age or older. The average household size was 2.09 and the average family size was 2.54.
In the township the population was spread out, with 13.4% under the age of 18, 5.8% from 18 to 24, 20.0% from 25 to 44, 40.4% from 45 to 64, and 20.4% who were 65 years of age or older. The median age was 50 years. For every 100 females, there were 110.8 males. For every 100 females age 18 and over, there were 112.6 males.
The median income for a household in the township was $48,036, and the median income for a family was $53,523. Males had a median income of $39,167 versus $31,932 for females. The per capita income for the township was $24,114. About 7.0% of families and 6.8% of the population were below the poverty line, including 6.8% of those under age 18 and 6.5% of those age 65 or over.