| Official Name: | Fairfax 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: | Polk |
| Unit Pref: | Imperial |
| Area Total Km2: | 93.2 |
| Area Land Km2: | 93.2 |
| Area Water Km2: | 0.0 |
| Area Total Sq Mi: | 36.0 |
| Area Land Sq Mi: | 36.0 |
| Area Water Sq Mi: | 0.0 |
| Population As Of: | 2000 |
| Population Total: | 213 |
| Population Density Km2: | 2.3 |
| Population Density Sq Mi: | 5.9 |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation M: | 271 |
| Elevation Ft: | 889 |
| Coordinates: | 47.7239°N -96.5622°W |
| Blank Name: | FIPS code |
| Blank Info: | 27-20204[1] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 0664128[2] |
Fairfax Township is a township in Polk County, Minnesota, United States. It is part of the Grand Forks-ND-MN Metropolitan Statistical Area. The population was 213 at the 2000 census.
Fairfax Township was organized in 1879.[3]
According to the United States Census Bureau, the township has a total area of 36sqmi, all land.
U.S. Highway 2 and Minnesota Highways 9 and 102 are three of the main routes in the community.
As of the census of 2000, there were 213 people, 74 households, and 54 families residing in the township. The population density was 5.9sp=usNaNsp=us. There were 77 housing units at an average density of 2.1sp=usNaNsp=us. The racial makeup of the township was 98.12% White, 0.47% Native American, 0.94% from other races, and 0.47% from two or more races. Hispanic or Latino of any race were 0.94% of the population.
There were 74 households, out of which 37.8% had children under the age of 18 living with them, 62.2% were married couples living together, 6.8% had a female householder with no husband present, and 25.7% were non-families. 21.6% of all households were made up of individuals, and 5.4% had someone living alone who was 65 years of age or older. The average household size was 2.66 and the average family size was 3.09.
In the township the population was spread out, with 26.3% under the age of 18, 3.8% from 18 to 24, 31.0% from 25 to 44, 18.3% from 45 to 64, and 20.7% who were 65 years of age or older. The median age was 40 years. For every 100 females, there were 95.4 males. For every 100 females age 18 and over, there were 89.2 males.
The median income for a household in the township was $43,214, and the median income for a family was $44,250. Males had a median income of $30,357 versus $26,875 for females. The per capita income for the township was $15,402. About 14.5% of families and 22.2% of the population were below the poverty line, including 29.3% of those under the age of eighteen and 21.6% of those 65 or over.