As of the census of 2010, there were 929 people, 412 households, and 257 families residing in the city. The population density was. There were 484 housing units at an average density of. The racial makeup of the city was 98.0% White, 0.4% Native American, 0.2% Asian, 0.4% from other races, and 1.0% from two or more races. Hispanic or Latino of any race were 1.9% of the population. There were 412 households of which 27.2% had children under the age of 18 living with them, 49.5% were married couplesliving together, 10.2% had a female householder with no husband present, 2.7% had a male householder with no wife present, and 37.6% were non-families. 33.5% of all households were made up of individuals and 18% 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 2.81. The median age in the city was 47.7 years. 23.7% of residents were under the age of 18; 5% were between the ages of 18 and 24; 18.7% were from 25 to 44; 27.4% were from 45 to 64; and 25.2% were 65 years of age or older. The gender makeup of the city was 46.9% male and 53.1% female.
2000 census
As of the census of 2000, there were 983 people, 437 households, and 277 families residing in the city. The population density was 1,843.9 people per square mile. There were 482 housing units at an average density of 904.1 per square mile. The racial makeup of the city was 97.56% White, 0.10% African American, 0.41% Native American, 0.31% Asian, 0.81% from other races, and 0.81% from two or more races. Hispanic or Latino of any race were 1.22% of the population. There were 437 households out of which 24.7% had children under the age of 18 living with them, 53.3% were married couples living together, 6.9% had a female householder with no husband present, and 36.6% were non-families. 33.9% of all households were made up of individuals and 18.1% 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 2.81. In the city, the population was spread out with 22.5% under the age of 18, 5.2% from 18 to 24, 24.2% from 25 to 44, 23.8% from 45 to 64, and 24.3% who were 65 years of age or older. The median age was 43 years. For every 100 females, there were 89.8 males. For every 100 females age 18 and over, there were 90.0 males. As of 2000 the median income for a household in the city was $35,000, and the median income for a family was $44,659. Males had a median income of $27,431 versus $24,792 for females. The per capita income for the city was $19,312. About 3.6% of families and 8.2% of the population were below the poverty line, including 12.1% of those under age 18 and 6.9% of those age 65 or over.
Climate
Chappell has a semi-arid climate. Winters are cold and dry, while summers are hot and often stormy. Precipitation is greatest in the summer months, with an annual average of
