Climate

According to the Köppen Climate Classification system, Coolidge has a semi-arid climate, abbreviated "BSk" on climate maps.^[8]

2020 census

The 2020 United States census counted 80 people, 28 households, and 16 families in Coolidge.^[9][10] The population density was 173.2 per square mile (66.9/km²). There were 44 housing units at an average density of 95.2 per square mile (36.8/km²).^[10][11] The racial makeup was 65.0% (52) white or European American (63.75% non-Hispanic white), 2.5% (2) black or African-American, 3.75% (3) Native American or Alaska Native, 0.0% (0) Asian, 0.0% (0) Pacific Islander or Native Hawaiian, 20.0% (16) from other races, and 8.75% (7) from two or more races.^[12] Hispanic or Latino of any race was 27.5% (22) of the population.^[13]

Of the 28 households, 39.3% had children under the age of 18; 50.0% were married couples living together; 7.1% had a female householder with no spouse or partner present. 35.7% of households consisted of individuals and 17.9% had someone living alone who was 65 years of age or older.^[10] The average household size was 2.6 and the average family size was 5.0.^[14] The percent of those with a bachelor’s degree or higher was estimated to be 10.0% of the population.^[15]

31.2% of the population was under the age of 18, 10.0% from 18 to 24, 17.5% from 25 to 44, 22.5% from 45 to 64, and 18.8% who were 65 years of age or older. The median age was 35.0 years. For every 100 females, there were 73.9 males.^[10] For every 100 females ages 18 and older, there were 77.4 males.^[10]

The 2016-2020 5-year American Community Survey estimates show that the median household income was $31,000 (with a margin of error of +/- $5,248) and the median family income was $37,188 (+/- $15,126).^[16] Males had a median income of $31,167 (+/- $1,709) versus $23,611 (+/- $507) for females. The median income for those above 16 years old was $30,333 (+/- $8,990).^[17] Approximately, 0.0% of families and 3.7% of the population were below the poverty line, including 0.0% of those under the age of 18 and 5.3% of those ages 65 or over.^[18][19]

2010 census

As of the census^[20] of 2010, there were 95 people, 43 households, and 26 families residing in the city. The population density was 206.5 inhabitants per square mile (79.7/km²). There were 49 housing units at an average density of 106.5 per square mile (41.1/km²). The racial makeup of the city was 82.1% White and 17.9% from other races. Hispanic or Latino of any race were 33.7% of the population.

There were 43 households, of which 30.2% had children under the age of 18 living with them, 41.9% were married couples living together, 9.3% had a female householder with no husband present, 9.3% had a male householder with no wife present, and 39.5% were non-families. 32.6% of all households were made up of individuals, and 18.6% 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 2.88.

The median age in the city was 42.1 years. 25.3% of residents were under the age of 18; 2% were between the ages of 18 and 24; 27.4% were from 25 to 44; 28.4% were from 45 to 64; and 16.8% 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^[21] of 2000, there were 86 people, 36 households, and 25 families residing in the city. The population density was 187.4 inhabitants per square mile (72.4/km²). There were 41 housing units at an average density of 89.3 per square mile (34.5/km²). The racial makeup of the city was 70.93% White, 26.74% from other races, and 2.33% from two or more races. Hispanic or Latino of any race were 33.72% of the population.

There were 36 households, out of which 33.3% had children under the age of 18 living with them, 66.7% were married couples living together, 5.6% had a female householder with no husband present, and 27.8% were non-families. 27.8% of all households were made up of individuals, and 22.2% had someone living alone who was 65 years of age or older. The average household size was 2.39 and the average family size was 2.88.

In the city, the population was spread out, with 19.8% under the age of 18, 8.1% from 18 to 24, 24.4% from 25 to 44, 19.8% from 45 to 64, and 27.9% who were 65 years of age or older. The median age was 43 years. For every 100 females, there were 83.0 males. For every 100 females age 18 and over, there were 86.5 males.

The median income for a household in the city was $36,250, and the median income for a family was $36,250. Males had a median income of $22,000 versus $26,250 for females. The per capita income for the city was $17,485. There were no families and 3.0% of the population living below the poverty line, including no under eighteens and 6.3% of those over 64.