Marion County is a

county A county is a geographic region of a country used for administrative or other purposesChambers Dictionary, L. Brookes (ed.), 2005, Chambers Harrap Publishers Ltd, Edinburgh in certain modern nations. The term is derived from the Old French ...

located 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 sover ...

Illinois Illinois ( ) is a U.S. state, state in the Midwestern United States, Midwestern United States. Its largest metropolitan areas include the Chicago metropolitan area, and the Metro East section, of Greater St. Louis. Other smaller metropolita ...

. According to the 2010 census, it had a population of 39,437. Its

county seat A county seat is an administrative center, seat of government, or capital city of a county or civil parish. The term is in use in Canada, China, Hungary, Romania, Taiwan, and the United States. The equivalent term shire town is used in the US st ...

is Salem. Marion County comprises the

Centralia Centralia may refer to: Places Australia *Central Australia, sometimes called "Centralia" Canada * Centralia, Ontario ** RCAF Station Centralia, a former Royal Canadian Air Force training base ** Centralia (Essery Field) Aerodrome United State ...

, IL Micropolitan Statistical Area, which is included in the

St. Louis St. Louis () is the second-largest city in Missouri, United States. It sits near the confluence of the Mississippi and the Missouri Rivers. In 2020, the city proper had a population of 301,578, while the bi-state metropolitan area, which e ...

- St. Charles-

Farmington Farmington may refer to: Places Canada *Farmington, British Columbia * Farmington, Nova Scotia (disambiguation) United States *Farmington, Arkansas *Farmington, California *Farmington, Connecticut *Farmington, Delaware * Farmington, Georgia * ...

, MO-IL

Combined Statistical Area Combined statistical area (CSA) is a United States Office of Management and Budget (OMB) term for a combination of adjacent metropolitan (MSA) and micropolitan statistical areas (µSA) across the 50 US states and the territory of Puerto Ric ...

History

Marion County was organized on 24 January 1823 from portions of

Jefferson Jefferson may refer to: Names * Jefferson (surname) * Jefferson (given name) People * Thomas Jefferson (1743–1826), third president of the United States * Jefferson (footballer, born 1970), full name Jefferson Tomaz de Souza, Brazilian foo ...

and Fayette counties. It was named in honor of Revolutionary War Gen.

Francis Marion 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 the Revolutionary War. During the Ameri ...

, the "Swamp Fox". File:Marion County Illinois 1823.png, Marion County at the time of its creation in 1823

Geography

According to the

U.S. Census Bureau The United States Census Bureau (USCB), 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 Census Bureau is part of the ...

, the county has a total area of , of which is land and (0.6%) is water. The southwest corner of Marion County is the intersection of the Baseline with the Third Principal Meridian, the point of origin for the third survey of the Northwest Territory under the

Land Ordinance of 1785 The Land Ordinance of 1785 was adopted by the United States Congress of the Confederation on May 20, 1785. It set up a standardized system whereby settlers could purchase title to farmland in the undeveloped west. Congress at the time did not have ...

. The origin is marked with a boulder south of

just off U.S. 51.

Climate and weather

In recent years, average temperatures in the county seat of Salem have ranged from a low of in January to a high of in July, although a record low of was recorded in January 1994 and a record high of was recorded in August 1983. Average monthly precipitation ranged from in January to in May.

Major highways

Interstate 57 Interstate 57 (I-57) is a north–south Interstate Highway in Missouri and Illinois that parallels the old Illinois Central Railroad for much of its route. It runs from Sikeston, Missouri, at I-55 to Chicago, Illinois, at I-94. I-57 essen ...

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 Atlanti ...

U.S. Route 51 U.S. Route 51 or U.S. Highway 51 (US 51) is a major south-north United States highway that extends from the western suburbs of New Orleans, Louisiana, to within of the Wisconsin–Michigan state line. As most of the United States Numbered Highw ...

Illinois Route 37 Illinois Route 37, Illinois 37 or IL 37, is a north–south state highway in southern Illinois. IL 37's southern terminus is at U.S. Route 51 (US 51) and IL 3 in Cairo and the northern terminus is at US 45 in Watson. Route ...

Illinois Route 161 Illinois Route 161 (abbreviated IL 161) is an east–west highway with its western terminus at St. Clair Avenue in Fairview Heights and its official eastern terminus at Illinois Route 37 near Kell. This is an official distance of . The road ...

Adjacent counties

* Fayette County - north *

Clay County Clay County is the name of 18 counties in the United States. Most are named for Henry Clay, U.S. Senator and statesman: * Clay County, Alabama * Clay County, Arkansas (named for John Clayton, and originally named Clayton County) * Clay County, Fl ...

- east * Wayne County - southeast * Jefferson County - south * Washington County - southwest *

Clinton County Clinton County may refer to: *Counties named for George Clinton, first and third Governor of New York, and later the fourth Vice President of the United States: **Clinton County, New York ** Clinton County, Ohio *Counties named for DeWitt Clinton, ...

- west

Demographics

As of the

2010 United States Census The United States census of 2010 was the twenty-third United States national census. National Census Day, the reference day used for the census, was April 1, 2010. The census was taken via mail-in citizen self-reporting, with enumerators servin ...

, there were 39,437 people, 16,148 households, and 10,746 families residing in the county. The population density was . There were 18,296 housing units at an average density of . The racial makeup of the county was 93.1% white, 3.9% black or African American, 0.6% Asian, 0.3% American Indian, 0.4% from other races, and 1.6% from two or more races. Those of Hispanic or Latino origin made up 1.4% of the population. In terms of ancestry, 27.5% were

German German(s) may refer to: * Germany (of or related to) **Germania (historical use) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizens of Germany, see also German nationality law **Ger ...

, 15.8% were

Irish Irish may refer to: Common meanings * Someone or something of, from, or related to: ** Ireland, an island situated off the north-western coast of continental Europe ***Éire, Irish language name for the isle ** Northern Ireland, a constituent unit ...

, 13.6% were

English English usually refers to: * English language * English people English may also refer to: Peoples, culture, and language * ''English'', an adjective for something of, from, or related to England ** English national ide ...

, and 10.8% were

American American(s) may refer to: * American, something of, from, or related to the United States of America, commonly known as the "United States" or "America" ** Americans, citizens and nationals of the United States of America ** American ancestry, pe ...

. Of the 16,148 households, 30.9% had children under the age of 18 living with them, 48.9% were married couples living together, 12.8% had a female householder with no husband present, 33.5% were non-families, and 28.8% of all households were made up of individuals. The average household size was 2.40 and the average family size was 2.91. The median age was 41.4 years. The median income for a household in the county was $38,974 and the median income for a family was $50,518. Males had a median income of $41,428 versus $28,042 for females. The per capita income for the county was $20,493. About 12.2% of families and 16.5% 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 t ...

, including 23.9% of those under age 18 and 9.6% of those age 65 or over.

Communities

Cities

* Kinmundy * Salem * Wamac

Villages

Alma Alma or ALMA may refer to: Arts and entertainment * ''Alma'' (film), a 2009 Spanish short animated film * ''Alma'' (Oswald de Andrade novel), 1922 * ''Alma'' (Le Clézio novel), 2017 * ''Alma'' (play), a 1996 drama by Joshua Sobol about Alma ...

Central City In urban planning, a core city, principal city metropolitan core, or central city, is the largest or most important city or cities of a metropolitan area. A core city is surrounded by smaller satellite cities, towns, and suburbs. A central city ...

* Iuka * Junction City * Kell *

Odin Odin (; from non, Óðinn, ) is a widely revered Æsir, god in Germanic paganism. Norse mythology, the source of most surviving information about him, associates him with wisdom, healing, death, royalty, the gallows, knowledge, war, battle, v ...

* Patoka *

Sandoval Sandoval is a habitational surname of Spanish origin. It primarily originates from Sandoval de la Reina, Spain, earlier called ''Sannoval'', which is a blend word of Latin ''saltus'' (meaning 'grove' or 'wood') and Latin ''novalis'' (meaning 'newl ...

* Vernon * Walnut Hill

Townships

Marion County is divided into seventeen

townships A township is a kind of human settlement or administrative subdivision, with its meaning varying in different countries. Although the term is occasionally associated with an urban area, that tends to be an exception to the rule. In Australia, Ca ...

: *

Carrigan Carrigan is a townland in the Parish of Tomregan, Barony of Loughtee Lower, County Cavan, Ireland. Etymology The townland name is an anglicisation of the Gaelic placename ''Cairrig-ín'' which means 'A little rock or a rocky surface'. The olde ...

* Foster * Haines * Iuka * Kinmundy * Meacham *

Omega Omega (; capital: Ω, lowercase: ω; Ancient Greek ὦ, later ὦ μέγα, Modern Greek ωμέγα) is the twenty-fourth and final letter in the Greek alphabet. In the Greek numeric system/isopsephy (gematria), it has a value of 800. The wo ...

* Patoka *

Raccoon The raccoon ( or , ''Procyon lotor''), sometimes called the common raccoon to distinguish it from other species, is a mammal native to North America. It is the largest of the procyonid family, having a body length of , and a body weight of ...

* Romine * Salem *

* Stevenson * Tonti

Unincorporated Communities

* Greendale * Tonti

Politics

Initially a strongly Democratic anti-

Yankee The term ''Yankee'' and its contracted form ''Yank'' have several interrelated meanings, all referring to people from the United States. Its various senses depend on the context, and may refer to New Englanders, residents of the Northern United St ...

county, Marion County has undergone two transitions. Between 1912 and 2004 it was a perfect

bellwether A bellwether is a leader or an indicator of trends.bellwether
" ''Cambridge Dictionary''. Ret ...

apart from the Catholicism-influenced 1960 election when substantial anti-Catholic voting by its largely southern white population caused it to support Republican

Richard Nixon Richard Milhous Nixon (January 9, 1913April 22, 1994) was the 37th president of the United States, serving from 1969 to 1974. A member of the Republican Party, he previously served as a representative and senator from California and was ...

. Since the beginning of the twenty-first century it has voted consistently for Republican presidential candidates.

References

{{Coord, 38.65, -88.92, display=title, type:adm2nd_region:US-IL_source:UScensus1990 Illinois counties 1823 establishments in Illinois Populated places established in 1823

Marion County, Illinois Marion County is a county located in the U.S. state of Illinois. According to the 2010 census, it had a population of 39,437. Its county seat is Salem. Marion County comprises the Centralia, IL Micropolitan Statistical Area, which is include ...