Corwith got its start in the year 1880, following construction of the Minneapolis & St. Louis Railroad through that territory. It burned down in the 18s The first buildings to be built were a hotel and the train depot.
As of the census of 2010, there were 309 people, 141 households, and 78 families living in the city. The population density was. There were 167 housing units at an average density of. The racial makeup of the city was 97.7% White, 0.3% Asian, 1.3% from other races, and 0.6% from two or more races. Hispanic or Latino of any race were 4.2% of the population. There were 141 households, of which 22.0% had children under the age of 18 living with them, 46.1% were married couplesliving together, 7.1% had a female householder with no husband present, 2.1% had a male householder with no wife present, and 44.7% were non-families. 35.5% of all households were made up of individuals, and 19.9% had someone living alone who was 65 years of age or older. The average household size was 2.19 and the average family size was 2.85. The median age in the city was 46.3 years. 20.1% of residents were under the age of 18; 6.8% were between the ages of 18 and 24; 20% were from 25 to 44; 31.4% were from 45 to 64; and 21.7% were 65 years of age or older. The gender makeup of the city was 51.8% male and 48.2% female.
2000 census
As of the census of 2000, there were 350 people, 150 households, and 94 families living in the city. The population density was 224.2 people per square mile. There were 163 housing units at an average density of 104.4 per square mile. The racial makeup of the city was 96.57% White, 0.29% Native American, 3.14% from other races. Hispanic or Latino of any race were 6.57% of the population. There were 150 households, out of which 28.7% had children under the age of 18 living with them, 51.3% were married couples living together, 7.3% had a female householder with no husband present, and 37.3% were non-families. 34.0% of all households were made up of individuals, and 19.3% had someone living alone who was 65 years of age or older. The average household size was 2.33 and the average family size was 2.97. In the city, the population was spread out, with 25.7% under the age of 18, 5.1% from 18 to 24, 24.6% from 25 to 44, 22.6% from 45 to 64, and 22.0% who were 65 years of age or older. The median age was 40 years. For every 100 females, there were 94.4 males. For every 100 females age 18 and over, there were 88.4 males. The median income for a household in the city was $27,222, and the median income for a family was $38,333. Males had a median income of $32,031 versus $16,528 for females. The per capita income for the city was $13,054. About 9.8% of families and 11.4% of the population were below the poverty line, including 10.1% of those under age 18 and 8.2% of those age 65 or over.
