Jeffers is a city in Amboy Township, Cottonwood County, Minnesota, United States. The population was 369 at the 2010 census.
According to the United States Census Bureau, the city has a total area of 0.38 square miles (0.98 km), all land. Jeffers is situated in section 20, township 107, range 36 west, Latitude: 44.06 N, Longitude: 95.20 W.
The Jeffers Petroglyphs are located 15 km (9.3 mi) northeast of Jeffers on Red Rock Ridge.
As of the census of 2010, there were 369 people, 167 households, and 97 families residing in the city. The population density was 971.1 inhabitants per square mile (374.9/km). There were 196 housing units at an average density of 515.8 per square mile (199.2/km). The racial makeup of the city was 90.0% White, 0.5% Native American, 0.3% Asian, 6.2% from other races, and 3.0% from two or more races. Hispanic or Latino of any race were 7.0% of the population.
There were 167 households of which 26.3% had children under the age of 18 living with them, 44.3% were married couples living together, 9.0% had a female householder with no husband present, 4.8% had a male householder with no wife present, and 41.9% were non-families. 38.9% of all households were made up of individuals and 24% had someone living alone who was 65 years of age or older. The average household size was 2.21 and the average family size was 2.94.
The median age in the city was 46.4 years. 24.7% of residents were under the age of 18; 4.5% were between the ages of 18 and 24; 18.1% were from 25 to 44; 28.1% were from 45 to 64; and 24.4% were 65 years of age or older. The gender makeup of the city was 48.5% male and 51.5% female.
As of the census of 2000, there were 396 people, 184 households, and 114 families residing in the city. The population density was 1,025.0 people per square mile (392.0/km²). There were 200 housing units at an average density of 517.7 per square mile (198.0/km²). The racial makeup of the city was 98.74% White, 0.25% Asian, and 1.01% from two or more races. Hispanic or Latino of any race were 0.25% of the population.
There were 184 households out of which 20.1% had children under the age of 18 living with them, 51.6% were married couples living together, 8.7% had a female householder with no husband present, and 38.0% were non-families. 33.7% of all households were made up of individuals and 20.7% had someone living alone who was 65 years of age or older. The average household size was 2.15 and the average family size was 2.71.
In the city, the population was spread out with 19.9% under the age of 18, 5.6% from 18 to 24, 24.5% from 25 to 44, 22.7% from 45 to 64, and 27.3% who were 65 years of age or older. The median age was 45 years. For every 100 females, there were 96.0 males. For every 100 females age 18 and over, there were 89.8 males.
The median income for a household in the city was $29,286, and the median income for a family was $35,625. Males had a median income of $23,125 versus $20,000 for females. The per capita income for the city was $16,649. About 7.3% of families and 9.9% of the population were below the poverty line, including 11.4% of those under age 18 and 10.7% of those age 65 or over.