| Official Name: | Middletown 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: | Jackson |
| Unit Pref: | Imperial |
| Area Total Km2: | 93.8 |
| Area Land Km2: | 92.6 |
| Area Water Km2: | 1.2 |
| Area Total Sq Mi: | 36.2 |
| Area Land Sq Mi: | 35.7 |
| Area Water Sq Mi: | 0.5 |
| Population As Of: | 2000 |
| Population Total: | 243 |
| Population Density Km2: | 2.6 |
| Population Density Sq Mi: | 6.8 |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation M: | 425 |
| Elevation Ft: | 1394 |
| Coordinates: | 43.5494°N -95.045°W |
| Blank Name: | FIPS code |
| Blank Info: | 27-41948[1] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 0664965[2] |
Middletown Township is a township in Jackson County, Minnesota, United States. The population was 243 at the 2000 census.
Middletown Township was organized in 1869, and named for its location between two other townships.[3]
According to the United States Census Bureau, the township has a total area of 36.2 square miles (93.8 km2), of which 35.8 square miles (92.6 km2) is land and 0.5 square mile (1.2 km2) (1.27%) is water.
As of the census of 2000, there were 243 people, 103 households, and 79 families residing in the township. The population density was 6.8sp=usNaNsp=us. There were 114 housing units at an average density of 3.2sp=usNaNsp=us. The racial makeup of the township was 100.00% White. Hispanic or Latino of any race were 0.41% of the population.
There were 103 households, out of which 29.1% had children under the age of 18 living with them, 67.0% were married couples living together, 3.9% had a female householder with no husband present, and 23.3% were non-families. 23.3% of all households were made up of individuals, and 6.8% had someone living alone who was 65 years of age or older. The average household size was 2.36 and the average family size was 2.73.
In the township the population was spread out, with 20.6% under the age of 18, 6.2% from 18 to 24, 30.9% from 25 to 44, 24.3% from 45 to 64, and 18.1% who were 65 years of age or older. The median age was 42 years. For every 100 females, there were 135.9 males. For every 100 females age 18 and over, there were 144.3 males.
The median income for a household in the township was $39,219, and the median income for a family was $45,000. Males had a median income of $35,417 versus $23,750 for females. The per capita income for the township was $20,394. About 9.7% of families and 9.8% of the population were below the poverty line, including 11.4% of those under the age of eighteen and 18.2% of those 65 or over.
Middletown Township is located in Minnesota's 1st congressional district, represented by Mankato educator Tim Walz, a Democrat. At the state level, Middletown Township is located in Senate District 22, represented by Republican Doug Magnus, and in House District 22B, represented by Republican Rod Hamilton.