Pettis County is a
county
A county () is a geographic region of a country used for administrative or other purposesL. Brookes (ed.) '' Chambers Dictionary''. Edinburgh: Chambers Harrap Publishers Ltd, 2005. in some nations. The term is derived from the Old French denoti ...
located in west central
U.S. state
In the United States, a state is a constituent political entity, of which there are 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory where it shares its so ...
of
Missouri
Missouri (''see #Etymology and pronunciation, pronunciation'') is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. Ranking List of U.S. states and territories by area, 21st in land area, it border ...
. As of the
2020 census, the population was 42,980. Its
county seat
A county seat is an administrative center, seat of government, or capital city of a county or parish (administrative division), civil parish. The term is in use in five countries: Canada, China, Hungary, Romania, and the United States. An equiva ...
is
Sedalia.
The county was organized on January 24, 1833, and named after former
U.S. Representative Spencer Darwin Pettis
Spencer Darwin Pettis (1802August 28, 1831) was a U.S. Representative from Missouri, serving from 1828 until his death in 1831. He was also the fourth Missouri Secretary of State. Pettis is best known for being a participant in a fatal duel with ...
.
Pettis County comprises the Sedalia, MO
Micropolitan Statistical Area.
The county is home to the site of the
Missouri State Fair in Sedalia.
Geography
According to the
U.S. Census Bureau, the county has a total area of , of which is land and (0.6%) is water.
It is drained by
Lamine River and branches.
Adjacent counties
*
Saline County (north)
*
Cooper County (east)
*
Morgan County (southeast)
*
Benton County (south)
*
Henry County (southwest)
*
Johnson County (west)
*
Lafayette County (northwest)
Major highways
*
U.S. Route 50
U.S. Route 50 or U.S. Highway 50 (US 50) is a major east–west route of the U.S. Highway system, stretching from Interstate 80 (I-80) in West Sacramento, California, to Maryland Route 528 (MD 528) in Ocean City, Maryland, on the Atlantic ...
*
U.S. Route 65
*
Route 52
*
Route 127
*
Route 135
Demographics
As of the
census
A census (from Latin ''censere'', 'to assess') is the procedure of systematically acquiring, recording, and calculating population information about the members of a given Statistical population, population, usually displayed in the form of stati ...
of 2000, there were 39,403 people, 15,568 households, and 10,570 families residing in the county. The
population density
Population density (in agriculture: Standing stock (disambiguation), standing stock or plant density) is a measurement of population per unit land area. It is mostly applied to humans, but sometimes to other living organisms too. It is a key geog ...
was . There were 16,963 housing units at an average density of . The racial makeup of the county was 92.06%
White
White is the lightest color and is achromatic (having no chroma). It is the color of objects such as snow, chalk, and milk, and is the opposite of black. White objects fully (or almost fully) reflect and scatter all the visible wa ...
, 3.04%
Black
Black is a color that results from the absence or complete absorption of visible light. It is an achromatic color, without chroma, like white and grey. It is often used symbolically or figuratively to represent darkness.Eva Heller, ''P ...
or
African American
African Americans, also known as Black Americans and formerly also called Afro-Americans, are an Race and ethnicity in the United States, American racial and ethnic group that consists of Americans who have total or partial ancestry from an ...
, 0.38%
Native American, 0.39%
Asian, 0.05%
Pacific Islander
Pacific Islanders, Pasifika, Pasefika, Pacificans, or rarely Pacificers are the peoples of the list of islands in the Pacific Ocean, Pacific Islands. As an ethnic group, ethnic/race (human categorization), racial term, it is used to describe th ...
, 2.46% from
other races, and 1.62% from two or more races. Approximately 3.88% of the population were
Hispanic
The term Hispanic () are people, Spanish culture, cultures, or countries related to Spain, the Spanish language, or broadly. In some contexts, Hispanic and Latino Americans, especially within the United States, "Hispanic" is used as an Ethnici ...
or
Latino of any race.
There were 15,568 households, out of which 32.50% had children under the age of 18 living with them, 53.30% were
married couples
Marriage, also called matrimony or wedlock, is a culturally and often legally recognised union between people called spouses. It establishes rights and obligations between them, as well as between them and their children (if any), and b ...
living together, 10.50% had a female householder with no husband present, and 32.10% were non-families. 27.00% of all households were made up of individuals, and 11.70% had someone living alone who was 65 years of age or older. The average household size was 2.49 and the average family size was 3.01.
In the county, the population was spread out, with 26.30% under the age of 18, 9.30% from 18 to 24, 27.90% from 25 to 44, 21.10% from 45 to 64, and 15.40% who were 65 years of age or older. The median age was 36 years. For every 100 females there were 94.40 males. For every 100 females age 18 and over, there were 91.70 males.
The median income for a household in the county was $31,822, and the median income for a family was $38,073. Males had a median income of $29,221 versus $19,554 for females. The
per capita income
Per capita income (PCI) or average income measures the average income earned per person in a given area (city, region, country, etc.) in a specified year.
In many countries, per capita income is determined using regular population surveys, such ...
for the county was $16,251. About 10.20% of families and 12.80% of the population were below the
poverty line
The poverty threshold, poverty limit, poverty line, or breadline is the minimum level of income deemed adequate in a particular country. The poverty line is usually calculated by estimating the total cost of one year's worth of necessities for ...
, including 16.60% of those under age 18 and 10.50% of those age 65 or over.
2020 Census
Education
Public schools
* Green Ridge R-VIII School District –
Green Ridge
** Green Ridge Elementary School (K-06)
** Green Ridge High School (07-12)
* La Monte R-IV School District –
La Monte
** La Monte Elementary School (PK-06)
** La Monte High School (07-12)
* Pettis County R-V School District –
Hughesville
** Northwest Elementary School (K-06)
** Northwest High School (07-12)
* Pettis County R-XII School District –
Sedalia
** Pettis County Elementary School (PK-08)
* Sedalia School District No. 200] –
Sedalia
** Sedalia Early Childhood Education Center (PK)
** Heber Hunt Elementary School (K-04)
** Skyline Elementary School (K-04)
** Parkview Elementary School (K-04)
** Horace Mann Elementary School (K-04)
** Washington Elementary School (K-04)
** Sedalia Middle School (05)
** Smith-Cotton Junior High School (06-08)
**
Smith-Cotton High School (9-12)
* Smithton R-VI School District –
Smithton
** Smithton Elementary School (PK-06)
** Smithton High School (07-12)
Private schools
* St. Paul's Lutheran School –
Sedalia (PK-08) –
Lutheran
Lutheranism is a major branch of Protestantism that emerged under the work of Martin Luther, the 16th-century German friar and Protestant Reformers, reformer whose efforts to reform the theology and practices of the Catholic Church launched ...
* Sedalia Seventh-day Adventist School –
Sedalia (01-08) –
Seventh-day Adventist
The Seventh-day Adventist Church (SDA) is an Adventist Protestant Christian denomination which is distinguished by its observance of Saturday, the seventh day of the week in the Christian (Gregorian) and the Hebrew calendar, as the Sabbat ...
* Show-Me Christian School –
La Monte (K-12) –
Nondenominational Christian
Non-denominational Christianity (or nondenominational Christianity) consists of churches, and individual Christians, which typically distance themselves from the confessionalism or creedalism of other Christian communities by not formally aligni ...
* Applewood Christian School –
Sedalia (K-12) –
Nondenominational Christian
Non-denominational Christianity (or nondenominational Christianity) consists of churches, and individual Christians, which typically distance themselves from the confessionalism or creedalism of other Christian communities by not formally aligni ...
* Sacred Heart Schools –
Sedalia (K-12) –
Roman Catholic
The Catholic Church (), also known as the Roman Catholic Church, is the largest Christian church, with 1.27 to 1.41 billion baptized Catholics worldwide as of 2025. It is among the world's oldest and largest international institut ...
** Sacred Heart Elementary School (K-06)
**
Sacred Heart High School (07-12)
Post-secondary
*
State Fair Community College –
Sedalia – A public, two-year/community college.
Public libraries
* Boonslick Regional Library
* Sedalia Public Library
Government and Politics
Local
The
Republican Party predominantly controls politics at the local level in Pettis County. Republicans currently hold all of the elected positions in the county.
State
Gubernatorial
Missouri House of Representatives
Pettis County is divided into four legislative districts in the
Missouri House of Representatives
The Missouri House of Representatives is the lower chamber of the Missouri General Assembly. It has 163 members, representing districts with an average size of 37,000 residents. House members are elected for two-year terms during general elections ...
, all of which are held by Republicans.
* District 48 — Dave Muntzel (R-
Boonville). Consists of the community of Smithton and the northeast section of the county.
* District 51 — Dean Dohrman (R-
La Monte). Consists of the communities of Houstonia, Hughesville, and La Monte and the northwest portion of the county.
* District 52 — Nathan Beard (R-
Sedalia). Consists of the community of Sedalia.
* District 54 — Dan Houx (R-
Warrensburg). Consists of the community of Green Ridge and the southern portion of the county.
Missouri Senate
All of Pettis County is a part of Missouri's 28th District in the
Missouri Senate
The Missouri Senate is the upper chamber of the Missouri General Assembly. It has 34 members, representing districts with an average population of 181,000. Its members serve four-year terms, with half the seats being up for election every two yea ...
and was previously represented by
Mike Parson
Michael Lynn Parson (born September 17, 1955) is an American politician and former law enforcement officer who served as the 57th List of governors of Missouri, governor of Missouri, from 2018 to 2025. A member of the Republican Party (United S ...
but the seat is currently vacant.
Federal
US Senate
Missouri House of Representatives
All of Pettis County is included in
Missouri's 4th Congressional District and is currently represented by
Vicky Hartzler
Vicky Jo Hartzler (née Zellmer; born October 13, 1960) is an American politician and businesswoman who served as the United States House of Representatives, U.S. representative for from 2011 to 2023. A member of the Republican Party (United Sta ...
(R-
Harrisonville) in the
U.S. House of Representatives.
Presidential
Communities
Cities and Towns
*
Green Ridge
*
Houstonia
*
Hughesville
*
Ionia
Ionia ( ) was an ancient region encompassing the central part of the western coast of Anatolia. It consisted of the northernmost territories of the Ionian League of Greek settlements. Never a unified state, it was named after the Ionians who ...
*
La Monte
*
Sedalia (county seat)
*
Smithton
*
Windsor
Unincorporated Communities
*
Bahner
*
Beaman
*
Bryson
*
Dresden
Dresden (; ; Upper Saxon German, Upper Saxon: ''Dräsdn''; , ) is the capital city of the States of Germany, German state of Saxony and its second most populous city after Leipzig. It is the List of cities in Germany by population, 12th most p ...
*
Dunksburg
*
Georgetown
*
Longwood
*
Manila
Manila, officially the City of Manila, is the Capital of the Philippines, capital and second-most populous city of the Philippines after Quezon City, with a population of 1,846,513 people in 2020. Located on the eastern shore of Manila Bay on ...
*
Newland
*
Postal
*
Spring Fork
*
Stokley
*
Tedieville
See also
*
National Register of Historic Places listings in Pettis County, Missouri
References
External links
Digitized 1930 Plat Book of Pettis County from
University of Missouri
The University of Missouri (Mizzou or MU) is a public university, public Land-grant university, land-grant research university in Columbia, Missouri, United States. It is Missouri's largest university and the flagship of the four-campus Univers ...
Division of Special Collections, Archives, and Rare Books
{{Coord, 38.73, -93.28, display=title, type:adm2nd_region:US-MO_source:UScensus1990
1833 establishments in Missouri
Populated places established in 1833