2020 census

As of the 2020 census, Hosmer had a population of 164. The median age was 61.5 years. 11.6% of residents were under the age of 18 and 40.2% of residents were 65 years of age or older. For every 100 females there were 110.3 males, and for every 100 females age 18 and over there were 110.1 males age 18 and over. ^[13]

0.0% of residents lived in urban areas, while 100.0% lived in rural areas. ^[14]

There were 78 households in Hosmer, of which 9.0% had children under the age of 18 living in them. Of all households, 43.6% were married-couple households, 33.3% were households with a male householder and no spouse or partner present, and 19.2% were households with a female householder and no spouse or partner present. About 37.2% of all households were made up of individuals and 17.9% had someone living alone who was 65 years of age or older. ^[13]

There were 120 housing units, of which 35.0% were vacant. The homeowner vacancy rate was 1.4% and the rental vacancy rate was 42.1%. ^[13]

2010 census

As of the census ^[16] of 2010, there were 208 people, 100 households, and 48 families residing in the city. The population density was 210.1 inhabitants per square mile (81.1/km²). There were 151 housing units at an average density of 152.5 per square mile (58.9/km²). The racial makeup of the city was 98.1% White, 0.5% Asian, and 1.4% from two or more races.

There were 100 households, of which 12.0% had children under the age of 18 living with them, 41.0% were married couples living together, 5.0% had a female householder with no husband present, 2.0% had a male householder with no wife present, and 52.0% were non-families. 48.0% of all households were made up of individuals, and 20% had someone living alone who was 65 years of age or older. The average household size was 1.81 and the average family size was 2.58.

The median age in the city was 57 years. 10.6% of residents were under the age of 18; 4.3% were between the ages of 18 and 24; 13% were from 25 to 44; 33.2% were from 45 to 64; and 38.9% were 65 years of age or older. The gender makeup of the city was 50.5% male and 49.5% female.

2000 census

As of the census ^[6] of 2000, there were 287 people, 115 households, and 67 families residing in the city. The population density was 288.2 inhabitants per square mile (111.3/km²). There were 162 housing units at an average density of 162.7 per square mile (62.8/km²). The racial makeup of the city was 98.95% White, 0.35% Asian, and 0.70% from two or more races. Hispanic or Latino of any race were 1.39% of the population.

There were 115 households, out of which 23.5% had children under the age of 18 living with them, 48.7% were married couples living together, 8.7% had a female householder with no husband present, and 41.7% were non-families. 37.4% of all households were made up of individuals, and 24.3% had someone living alone who was 65 years of age or older. The average household size was 2.20 and the average family size was 2.96.

In the city, the population was spread out, with 22.0% under the age of 18, 3.5% from 18 to 24, 17.8% from 25 to 44, 19.5% from 45 to 64, and 37.3% who were 65 years of age or older. The median age was 50 years. For every 100 females, there were 75.0 males. For every 100 females age 18 and over, there were 75.0 males.

The median income for a household in the city was $26,667, and the median income for a family was $37,813. Males had a median income of $23,438 versus $15,781 for females. The per capita income for the city was $13,952. None of the families and 8.3% of the population were living below the poverty line, including no under eighteens and 19.0% of those over 64.