2020 census

The 2020 United States census counted 800 people, 384 households, and 202 families in Downs.^[8][9] The population density was 714.3 per square mile (275.8/km²). There were 499 housing units at an average density of 445.5 per square mile (172.0/km²).^[9][10] The racial makeup was 92.75% (742) white or European American (92.38% non-Hispanic white), 0.0% (0) black or African-American, 1.12% (9) Native American or Alaska Native, 0.38% (3) Asian, 0.0% (0) Pacific Islander or Native Hawaiian, 1.38% (11) from other races, and 4.38% (35) from two or more races.^[11] Hispanic or Latino of any race was 2.38% (19) of the population.^[12]

Of the 384 households, 16.4% had children under the age of 18; 43.8% were married couples living together; 27.1% had a female householder with no spouse or partner present. 42.2% of households consisted of individuals and 22.7% had someone living alone who was 65 years of age or older.^[9] The average household size was 1.7 and the average family size was 2.4.^[13] The percent of those with a bachelor’s degree or higher was estimated to be 15.1% of the population.^[14]

18.4% of the population was under the age of 18, 4.6% from 18 to 24, 17.4% from 25 to 44, 26.5% from 45 to 64, and 33.1% who were 65 years of age or older. The median age was 54.7 years. For every 100 females, there were 106.7 males.^[9] For every 100 females ages 18 and older, there were 109.3 males.^[9]

The 2016-2020 5-year American Community Survey estimates show that the median household income was $44,013 (with a margin of error of +/- $7,965) and the median family income was $62,778 (+/- $21,479).^[15] Males had a median income of $39,583 (+/- $10,879) versus $26,538 (+/- $8,014) for females. The median income for those above 16 years old was $32,250 (+/- $9,794).^[16] Approximately, 7.9% of families and 13.5% of the population were below the poverty line, including 4.5% of those under the age of 18 and 5.8% of those ages 65 or over.^[17][18]

2010 census

As of the census^[19] of 2010, there were 900 people, 424 households, and 239 families residing in the city. The population density was 900.0 inhabitants per square mile (347.5/km²). There were 508 housing units at an average density of 508.0 per square mile (196.1/km²). The racial makeup of the city was 97.6% White, 0.1% African American, 1.1% Native American, 0.6% Asian, and 0.7% from two or more races. Hispanic or Latino of any race were 0.9% of the population.

There were 424 households, of which 23.3% had children under the age of 18 living with them, 44.6% were married couples living together, 9.4% had a female householder with no husband present, 2.4% had a male householder with no wife present, and 43.6% were non-families. 39.9% of all households were made up of individuals, and 18.4% had someone living alone who was 65 years of age or older. The average household size was 2.04 and the average family size was 2.68.

The median age in the city was 49.5 years. 20.2% of residents were under the age of 18; 5.9% were between the ages of 18 and 24; 17.1% were from 25 to 44; 30.8% were from 45 to 64; and 26% were 65 years of age or older. The gender makeup of the city was 47.3% male and 52.7% female.

2000 census

As of the census^[20] of 2000, there were 1,038 people, 474 households, and 273 families residing in the city. The population density was 941.4 inhabitants per square mile (363.5/km²). There were 543 housing units at an average density of 492.5 per square mile (190.2/km²). The racial makeup of the city was 98.75% White, 0.67% Native American, 0.29% Asian, 0.10% from other races, and 0.19% from two or more races. Hispanic or Latino of any race were 0.48% of the population.

There were 474 households, out of which 23.0% had children under the age of 18 living with them, 48.1% were married couples living together, 6.8% had a female householder with no husband present, and 42.4% were non-families. 38.8% of all households were made up of individuals, and 20.5% had someone living alone who was 65 years of age or older. The average household size was 2.08 and the average family size was 2.77.

In the city, the population was spread out, with 21.5% under the age of 18, 6.7% from 18 to 24, 20.2% from 25 to 44, 22.4% from 45 to 64, and 29.2% who were 65 years of age or older. The median age was 46 years. For every 100 females, there were 91.5 males. For every 100 females age 18 and over, there were 82.3 males.

The median income for a household in the city was $24,808, and the median income for a family was $36,518. Males had a median income of $24,940 versus $16,302 for females. The per capita income for the city was $15,001. About 9.0% of families and 11.1% of the population were below the poverty line, including 5.5% of those under age 18 and 15.2% of those age 65 or over.