カンザス州ダービー

この地域の気候は、暑く湿度の高い夏と、概して温暖から涼しい冬が特徴です。ケッペンの気候区分によると、ダービーは湿潤亜熱帯気候に属し、気候図では「Cfa」と略記されます。^{[ 12 ]}

2020年の国勢調査によると、ダービーの人口は25,625人で、世帯数は9,991、家族数は6,888世帯でした。^{[ 16 ] [ 17 ] [ 18 ]}

人口密度は1平方マイルあたり2,493.4人（¹平方キロメートルあたり962.7人）でした。住宅数は10,672戸で、平均密度は1平方マイルあたり1,038.4戸（¹平方キロメートルあたり400.9戸）でした。^{[ 19 ] [ 20 ]}

中央年齢は36.2歳でした。住民の25.9%が18歳未満、8.8%が18歳から24歳、26.5%が25歳から44歳、22.3%が45歳から64歳、16.5%が65歳以上でした。女性100人に対して男性は95.4人、18歳以上の女性100人に対して18歳以上の男性は92.2人でした。^{[ 16 ]}

9,991世帯のうち、34.2%に18歳未満の子供が同居していた。全世帯のうち、54.2%が夫婦世帯、15.9%が男性世帯主で配偶者またはパートナーがいない世帯、24.2%が女性世帯主で配偶者またはパートナーがいない世帯であった。全世帯の約26.3%が単身世帯で、10.7%は65歳以上の単身世帯であった。^{[ 16 ]}

住民の99.3%が都市部に居住し、0.7%が農村部に居住していた。^{[ 21 ]}

非ヒスパニック系白人住民は人口の80.65%を占めていた。^{[ 22 ]}

The 2016–2020 5-year American Community Survey estimated that the average household size was 2.7 and the average family size was 3.2.^[23] An estimated 24.8% of residents had a bachelor's degree or higher.^[24]

The median household income was $74,447 (with a margin of error of +/- $4,647) and the median family income was $87,805 (+/- $7,613).^[25] Males had a median income of $51,492 (+/- $3,241) versus $32,018 (+/- $3,530) for females. The median income for those above 16 years old was $41,332 (+/- $3,327).^[26]

Approximately, 5.6% of families and 6.4% of the population were below the poverty line, including 7.9% of those under the age of 18 and 6.9% of those ages 65 or over.^[27][28]

As of the census^[29] of 2010, there were 22,158 people, 8,300 households, and 6,226 families residing in the city.^[30] The population density was 2,317.8 inhabitants per square mile (894.9/km²). There were 8,774 housing units at an average density of 917.8 per square mile (354.4/km²). The racial makeup of the city was 91.6% White, 1.9% African American, 1.0% Native American, 1.6% Asian, 0.1% Pacific Islander, 0.8% from other races, and 3.0% from two or more races. Hispanic or Latino residents of any race were 5.2% of the population.

There were 8,300 households, of which 38.9% had children under the age of 18 living with them, 60.5% were married couples living together, 10.6% had a female householder with no husband present, 4.0% had a male householder with no wife present, and 25.0% were non-families. 21.3% of all households were made up of individuals, and 8.3% had someone living alone who was 65 years of age or older. The average household size was 2.66 and the average family size was 3.11.

The median age in the city was 34.7 years. 28.1% of residents were under the age of 18; 8.7% were between the ages of 18 and 24; 26.3% were from 25 to 44; 25.7% were from 45 to 64; and 11.4% were 65 years of age or older. The gender makeup of the city was 48.8% male and 51.2% female.