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Population and Demography of Kansas

Kansas is a state in the Midwestern United States. Kansas is bordered by Nebraska to the north; Missouri to the east; Oklahoma to the south; and Colorado to the west.

Kansas is the 35th most populous state in the United States. The total Land area is 81,759 square miles (211,754 square kilometers) and there is an average of 35 people for every square mile. This makes Kansas the 40th most densely populated state in the US. As per the  United States Census Bureau, the population of Kansas in 2020 is 2,937,880 (2.94 million) .

Estimated Population of Kansas in 2024: 2,940,546 (2.94 million)

Kansas Population (2010-2020)

Kansas has a population growth rate of 3% during 2010-2020. It has had a population increase of  84,762  since 2010. The median age in Kansas is approximately 36.2 years of age, with a slight gender gap in the population with 50.3% females and 49.7% males.

 KansasCensus 2020
Total Population2,937,880 (2.94 million)
Percentage Change since 20103%
Population Rank35th
Total Land Area81,759 sq. mi. (211,754 sq. km)
Area Rank15th
Population Density34.9/sq. mi .(13.5/sq. km.)
Capital CityTopeka
Largest CityWichita

Kansas Historical Population

In the year 1910 Kansas’s population was 1.4 million and in 2020 it reached 2.9 million, an increase of almost 1.5 million. 

Let’s look at decade population & percentage change 

Census YearPopulation% Change

Source: US Census 2020

Religion and affiliations

Christianity is the majority religion in Kansas followed by 76% of the population. The largest Christian denomination in Kansas is Protestant (57%); Roman Catholic (18%); Mormonism (1%): Jehovah’s Witnesses (1%)

Next comes the Unaffiliated population, 20% of the population doesn’t follow or adhere to any faith or religion. Other non-Christian-based religions are followed by 4% of the population and include Jewish, Hinduism, Buddhist, Muslim, and other faiths.

For more details read Religion in Kansas

Race and Ethnicity

In 2020, the White alone (non-Hispanic) population was the largest racial or ethnic group in Kansas, comprising 72.55% of the total population. It was followed by the Hispanic or Latino population whose share was 13.02%. Black or African American was the third largest group at 5.56%. Two or more races were at 5.07% & Asians at 2.90%.

Ancestry in Kansas

As per Census Studies & estimate German, Irish, English, American, and Italian have made the five largest ancestry groups in Kansas.

For more Details read Race and Ethnicity in Kansas

Top Cities and Counties in Kansas

As of 2022, Kansas is divided into 105 counties. Johnson County is the most populous county (613,219) and Butler County (1,428 sq mi) is the largest by area.  The most populous city in Kansas is Wichita, with a population of 391,731, followed by Overland Park (197,381), and Kansas City (157,717).

read more about Cities and Counties in Kansas 

Kansas Population 2024 | Kansas Demographics
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