Atchison County, Missouri


Atchison County is the northwesternmost county in the U.S. state of Missouri. As of the 2020 census, the county had a population of 5,305. Its county seat is Rock Port. It was originally known as Allen County when it was detached from Holt County in 1843. The county was officially organized on February 14, 1845, and named for U.S. Senator David Rice Atchison from Missouri.
WWW Official Site

Geography

According to the U.S. Census Bureau, the county has a total area of, of which is land and is water.
Atchison's western boundary for the most part is the Missouri River and Nebraska. An 1867 flood straightened a bend in the river north of Watson. Both Nebraska and Missouri claimed the 5,000 acre McKissick Island that extends almost two miles into Atchison County. The Supreme Court in 1904 decided that the land belongs to Nebraska. The only way Nebraskans can reach it by road is to cross the Missouri River and then travel through Missouri.
The State Line Slough (Missouri) stream is in Atchison County.

Adjacent counties

Major highways

Transit

Demographics

2020 census

As of the 2020 census, the county had a population of 5,305. The median age was 46.1 years. 21.4% of residents were under the age of 18 and 25.0% of residents were 65 years of age or older. For every 100 females there were 98.5 males, and for every 100 females age 18 and over there were 96.0 males age 18 and over. 0.0% of residents lived in urban areas, while 100.0% lived in rural areas.
The racial makeup of the county was 94.4% White, 0.4% Black or African American, 0.5% American Indian and Alaska Native, 0.2% Asian, 0.0% Native Hawaiian and Pacific Islander, 0.6% from some other race, and 4.0% from two or more races. Hispanic or Latino residents of any race comprised 1.4% of the population.
There were 2,335 households in the county, of which 26.2% had children under the age of 18 living with them and 23.9% had a female householder with no spouse or partner present. About 32.9% of all households were made up of individuals and 16.8% had someone living alone who was 65 years of age or older.
There were 2,731 housing units, of which 14.5% were vacant. Among occupied housing units, 71.2% were owner-occupied and 28.8% were renter-occupied. The homeowner vacancy rate was 2.1% and the rental vacancy rate was 10.9%.

2000 census

As of the census of 2000, there were 6,430 people, 2,722 households, and 1,777 families residing in the county. The population density was. There were 3,103 housing units at an average density of. The racial makeup of the county was 97.00% White, 2.05% Black or African American, 0.19% Native American, 0.14% Asian, 0.31% from other races, and 0.31% from two or more races. Approximately 0.67% of the population were Hispanic or Latino of any race.
There were 2,722 households, out of which 26.60% had children under the age of 18 living with them, 55.80% were married couples living together, 6.10% had a female householder with no husband present, and 34.70% were non-families. 31.50% of all households were made up of individuals, and 17.60% had someone living alone who was 65 years of age or older. The average household size was 2.25 and the average family size was 2.82.
In the county, the population was spread out, with 24.10% under the age of 18, 6.50% from 18 to 24, 24.20% from 25 to 44, 24.20% from 45 to 64, and 21.10% who were 65 years of age or older. The median age was 42 years. For every 100 females there were 99.30 males. For every 100 females age 18 and over, there were 91.90 males.
The median income for a household in the county was $30,959, and the median income for a family was $38,279. Males had a median income of $27,468 versus $18,855 for females. The per capita income for the county was $16,956. About 9.30% of families and 11.60% of the population were below the poverty line, including 13.70% of those under age 18 and 12.40% of those age 65 or over.

Religion

According to the Association of Religion Data Archives County Membership Report, Atchison County is sometimes regarded as being on the northern edge of the Bible Belt, although mainline Protestantism is the most predominant religion. The most predominant denominations among residents in Atchison County who adhere to a religion are United Methodists, Lutherans (LCMC), and Southern Baptists.

Energy

The county derives most of its energy from wind power, with the amount produced exceeding its needs. Several turbines installed by Wind Capital Group, with investment from the John Deere Company, generated an estimated 16 million kilowatt hours of energy a year in 2008. As of 2025, there are 342 wind turbines in the county.

Education

Public schools

School districts include:

Private schools

Public libraries

Communities

Cities

Village

Census-designated place

Unincorporated communities

Townships

Atchison County is divided into 11 townships:

Population ranking

The population ranking of the following table is based on the 2020 census of Atchison County.
† county seat
RankNameMunicipal TypePopulation
1Tarkio4th Class City1,506
2Rock Port †4th Class City1,278
3Fairfax4th Class City648
4Westboro4th Class City116
5WatsonVillage61
6BlanchardCDP27

Notable people

Politics

Local

The Republican Party controls politics at the local level in Atchison County. Republicans hold all but two of the elected positions in the county.

State

All of Atchison County is a part of Missouri's 1st District in the Missouri House of Representatives and is represented by Jeff Farnan.
All of Atchison County is a part of Missouri's 12th District in the Missouri Senate and is currently represented by Rusty Black.

Federal

All of Atchison County is included in Missouri's 6th Congressional District and is currently represented by Sam Graves in the U.S. House of Representatives. Graves was elected to a twelfth term in 2022 over Democratic challenger Henry Martin.
Atchison County, along with the rest of the state of Missouri, is represented in the U.S. Senate by Josh Hawley and Eric Schmitt.
Blunt was elected to a second term in 2016 over then-Missouri Secretary of State Jason Kander.

Political culture

At the presidential level, Atchison County is solidly Republican. Atchison County strongly favored Donald Trump in both 2016 and 2020. Bill Clinton was the last Democratic presidential nominee to carry Atchison County in 1992 with a plurality of the vote, and a Democrat hasn't won majority support from the county's voters in a presidential election since Lyndon Johnson in 1964.
Like most rural areas throughout northwest Missouri, voters in Atchison County generally adhere to socially and culturally conservative principles which tend to influence their Republican leanings. In 2018, Missourians voted on a proposition concerning right to work, the outcome of which ultimately reversed the right to work legislation passed in the state the previous year. However, 57.61% of Atchison County voters cast their ballots to keep the law.

Missouri presidential preference primaries

2020

The 2020 presidential primaries for both the Democratic and Republican parties were held in Missouri on March 10. On the Democratic side, former Vice President Joe Biden both won statewide and carried Atchison County by a wide margin. Biden went on to defeat President Donald Trump in the general election.
Incumbent President Donald Trump faced a primary challenge from former Massachusetts Governor Bill Weld, but won both Atchison County and statewide by large margins.

2016

The 2016 presidential primaries for both the Republican and Democratic parties were held in Missouri on March 15. Businessman Donald Trump narrowly won the state overall and carried a plurality of the vote in Atchison County. He went on to win the presidency.
On the Democratic side, Senator Bernie Sanders carried Atchison County, but former Secretary of State Hillary Clinton won statewide by a small margin. Clinton won the nomination that year.

2012

The 2012 Missouri Republican Presidential Primary's results were nonbinding on the state's national convention delegates. Voters in Atchison County supported former U.S. Senator Rick Santorum, who finished first in the state at large, but eventually lost the nomination to former Governor Mitt Romney. Delegates to the congressional district and state conventions were chosen at a county caucus, which selected a delegation favoring Santorum. Incumbent President Barack Obama easily won the Missouri Democratic Primary and renomination. He defeated Romney in the general election.

2008

In 2008, the Missouri Republican Presidential Primary was closely contested, with Senator John McCain prevailing and eventually winning the nomination.
Then-Senator Hillary Clinton received more votes than any candidate from either party in Atchison County during the 2008 presidential primary. Despite initial reports that Clinton had won Missouri, Barack Obama, also a Senator at the time, narrowly defeated her statewide and later became that year's Democratic nominee, going on to win the presidency.