Marion 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 ...
in the
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
Iowa
Iowa ( ) is a U.S. state, state in the upper Midwestern United States, Midwestern region of the United States. It borders the Mississippi River to the east and the Missouri River and Big Sioux River to the west; Wisconsin to the northeast, Ill ...
. As of the
2020 census, the population was 33,414.
The
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
Knoxville
Knoxville is a city in Knox County, Tennessee, United States, and its county seat. It is located on the Tennessee River and had a population of 190,740 at the 2020 United States census. It is the largest city in the East Tennessee Grand Division ...
. It is named for
Francis Marion
Brigadier general (United States), Brigadier General Francis Marion ( 1732 – February 27, 1795), also known as the "Swamp Fox", was an American military officer, planter, and politician who served during the French and Indian War and t ...
, a
brigadier general from
South Carolina
South Carolina ( ) is a U.S. state, state in the Southeastern United States, Southeastern region of the United States. It borders North Carolina to the north and northeast, the Atlantic Ocean to the southeast, and Georgia (U.S. state), Georg ...
in the
American Revolutionary War
The American Revolutionary War (April 19, 1775 – September 3, 1783), also known as the Revolutionary War or American War of Independence, was the armed conflict that comprised the final eight years of the broader American Revolution, in which Am ...
.
Geography
According to the
U.S. Census Bureau
The United States Census Bureau, officially the Bureau of the Census, is a principal agency of the U.S. federal statistical system, responsible for producing data about the American people and economy. The U.S. Census Bureau is part of the U ...
, the county has a total area of , of which is land and (2.8%) is water.
Major highways
*
Iowa Highway 5
*
Iowa Highway 14
Iowa Highway 14 (Iowa 14) is a state highway that runs from north to south across the state of Iowa for . The begins in Corydon at an intersection with Iowa 2 and ends in Charles City at an intersection with U.S. Highway 18 (US&nbs ...
*
Iowa Highway 92
Iowa Highway 92 (Iowa 92) is a state highway (Iowa), state highway that runs from east to west across the state of Iowa. Iowa 92 is long and is part of a continuous four-state "Highway 92" which begins in Torrington, Wyoming, goes throug ...
*
Iowa Highway 163
Iowa Highway 163 (Iowa 163) is a state highway (Iowa), state highway that travels from U.S. Highway 69 (Iowa), U.S. Highway 69 in Des Moines, Iowa, Des Moines to US 63 (IA), US 63 near Oskaloosa, Iowa, Oskaloosa. The Iowa Department of Transpor ...
*
Iowa Highway 316
Adjacent counties
*
Jasper County (north)
*
Mahaska County (east)
*
Monroe County (southeast)
*
Lucas County (southwest)
*
Warren County (west)
Demographics
2020 census

The 2020 census recorded a population of 33,414 in the county, with a population density of . 96.24% of the population reported being of one race. 91.15% were non-Hispanic White, 0.87% were Black, 2.09% were Hispanic, 0.21% were Native American, 1.20% were Asian, 0.06% were Native Hawaiian or Pacific Islander and 4.41% were some other race or more than one race. There were 14,073 housing units, of which 13,145 were occupied.
[
]
2010 census
The 2010 census recorded a population of 33,309 in the county, with a population density of . There were 13,914 housing units, of which 12,723 were occupied.
2000 census
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 32,052 people, 12,017 households, and 8,532 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 12,755 housing units at an average density of . The racial makeup of the county was 97.46% 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 ...
, 0.42% 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 ...
, 0.19% Native American, 1.03% Asian, 0.04% 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 ...
, 0.22% from other races, and 0.64% from two or more races. 0.80% 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 12,017 households, out of which 33.00% had children under the age of 18 living with them, 61.20% 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, 6.90% had a female householder with no husband present, and 29.00% were non-families. 25.60% of all households were made up of individuals, and 11.90% had someone living alone who was 65 years of age or older. The average household size was 2.50 and the average family size was 3.02.
In the county, the population was spread out, with 25.30% under the age of 18, 10.20% from 18 to 24, 26.50% from 25 to 44, 22.10% from 45 to 64, and 15.90% who were 65 years of age or older. The median age was 37 years. For every 100 females there were 98.60 males. For every 100 females age 18 and over, there were 95.80 males.
The median income for a household in the county was $42,401, and the median income for a family was $50,052. Males had a median income of $36,460 versus $25,573 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 $18,717. About 5.20% of families and 7.60% 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 8.70% of those under age 18 and 10.80% of those age 65 or over.
Communities
Cities
* Bussey
*Hamilton
Hamilton may refer to:
* Alexander Hamilton (1755/1757–1804), first U.S. Secretary of the Treasury and one of the Founding Fathers of the United States
* ''Hamilton'' (musical), a 2015 Broadway musical by Lin-Manuel Miranda
** ''Hamilton'' (al ...
* Harvey
*Knoxville
Knoxville is a city in Knox County, Tennessee, United States, and its county seat. It is located on the Tennessee River and had a population of 190,740 at the 2020 United States census. It is the largest city in the East Tennessee Grand Division ...
* Marysville
* Melcher-Dallas
*Pella
Pella () is an ancient city located in Central Macedonia, Greece. It served as the capital of the Ancient Greece, ancient Greek kingdom of Macedonia (ancient kingdom), Macedon. Currently, it is located 1 km outside the modern town of Pella ...
* Pleasantville
*Swan
Swans are birds of the genus ''Cygnus'' within the family Anatidae. The swans' closest relatives include the goose, geese and ducks. Swans are grouped with the closely related geese in the subfamily Anserinae where they form the tribe (biology) ...
Unincorporated communities
*Attica
Attica (, ''Attikḗ'' (Ancient Greek) or , or ), or the Attic Peninsula, is a historical region that encompasses the entire Athens metropolitan area, which consists of the city of Athens, the capital city, capital of Greece and the core cit ...
*Cloud
In meteorology, a cloud is an aerosol consisting of a visible mass of miniature liquid droplets, frozen crystals, or other particles, suspended in the atmosphere of a planetary body or similar space. Water or various other chemicals may ...
* Columbia
* Flagler
*Otley
Otley is a market town and civil parish at a bridging point on the River Wharfe, in the City of Leeds metropolitan borough in West Yorkshire, England. Historically a part of the West Riding of Yorkshire, the population was 13,668 at the 2011 c ...
* Pershing
* Tracy
Townships
* Clay
Clay is a type of fine-grained natural soil material containing clay minerals (hydrous aluminium phyllosilicates, e.g. kaolinite, ). Most pure clay minerals are white or light-coloured, but natural clays show a variety of colours from impuriti ...
* Dallas
Dallas () is a city in the U.S. state of Texas and the most populous city in the Dallas–Fort Worth metroplex, the List of Texas metropolitan areas, most populous metropolitan area in Texas and the Metropolitan statistical area, fourth-most ...
* Franklin
* Indiana
Indiana ( ) is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. It borders Lake Michigan to the northwest, Michigan to the north and northeast, Ohio to the east, the Ohio River and Kentucky to the s ...
* Knoxville
Knoxville is a city in Knox County, Tennessee, United States, and its county seat. It is located on the Tennessee River and had a population of 190,740 at the 2020 United States census. It is the largest city in the East Tennessee Grand Division ...
* Lake Prairie
* Liberty
Liberty is the state of being free within society from oppressive restrictions imposed by authority on one's way of life, behavior, or political views. The concept of liberty can vary depending on perspective and context. In the Constitutional ...
* Pleasant Grove
* Red Rock
* Summit
A summit is a point on a surface that is higher in elevation than all points immediately adjacent to it. The topographic terms acme, apex, peak (mountain peak), and zenith are synonymous.
The term (mountain top) is generally used only for ...
* Union
* Washington
Washington most commonly refers to:
* George Washington (1732–1799), the first president of the United States
* Washington (state), a state in the Pacific Northwest of the United States
* Washington, D.C., the capital of the United States
** A ...
Population ranking
The population ranking of the following table is based on the 2020 census of Marion County.[
† ''county seat''
]
Gallery
File:Marion Cty, Iowa Farmer w mule drawn wagon, 1920s.jpg, Marion County farmer with mule-drawn wagon, about 1926
File:Two Farmboys on pony, 1937.JPG, Two Iowa farm boys riding a pony, around 1937
File:Iowa Farm Boy riding hog, 1941.jpg, Iowa farm boy riding hog, about 1941
File:Farm house and Barn yard, Marion County, IA, 1957.jpg, Farm house and barn yard near Pleasantville, 1957
File:Cows in pasture - Marion County, IA Farm 1957.JPG, Cows in farm pasture, 1957
File:Farmer getting coal, winter 1957.jpg, Farmer getting coal, December 1957
File:Farm barnyard Dec. 1957.jpg, Farm barnyard
File:P'ville farm and silo.JPG, Farm barnyard and silo, 1960
Politics
See also
* National Register of Historic Places listings in Marion County, Iowa
References
External links
Official Marion County, Iowa website
{{Coord, 41, 19, 52, N, 93, 06, 08, W, region:US-IA_type:adm2nd_source:dewiki, display=title
1845 establishments in Iowa Territory
Populated places established in 1845