County courthouse in Hillsboro
Location within the U.S. state of Missouri
Missouri's location within the U.S.
|Named for||Thomas Jefferson|
|• Total||664 sq mi (1,720 km2)|
|• Land||657 sq mi (1,700 km2)|
|• Water||7.7 sq mi (20 km2) 1.2%|
| • Estimate |
|• Density||330/sq mi (130/km2)|
|Time zone||UTC−6 (Central)|
|• Summer (DST)||UTC−5 (CDT)|
|Congressional districts||2nd, 3rd, 8th|
Jefferson County is located in the eastern portion of the state of Missouri. It is a part of the St. Louis Metropolitan Area. As of the 2010 census, the population was 218,733, making it the sixth-most populous county in Missouri. Its county seat is Hillsboro. The county was organized in 1818 and named in honor of former president Thomas Jefferson.
In 1980, according to the U.S. census held that year, the county contained the mean center of U.S. population. Notably, this was the first census in which the center of population was west of the Mississippi River.
According to the U.S. Census Bureau, the county has a total area of 664 square miles (1,720 km2), of which 657 square miles (1,700 km2) is land and 7.7 square miles (20 km2) (1.2%) is water. The county's eastern border is the Mississippi River.
- St. Louis County (north)
- Monroe County, Illinois (east)
- Ste. Genevieve County (southeast)
- St. Francois County (south)
- Washington County (southwest)
- Franklin County (west)
National protected area
|U.S. Decennial Census|
As of the 2010 Census Jefferson County had a population of 218,733. The reported ethnic and racial make up of the population was 95.4% non-Hispanic white, 0.8% African-American, 0.3% Native American, 0.6% Asian, 0.4% reporting some other race, 1.3% reporting two or more races and 1.6% Hispanic or Latino of any race.
As of the census of 2000, there were 198,099 people, 71,499 households, and 54,553 families residing in the county. The population density was 302 inhabitants per square mile (117/km2). There were 75,586 housing units at an average density of 115 per square mile (44/km2). The racial makeup of the county was 97.48% White, 0.68% Black or African American, 0.29% Native American, 0.36% Asian, 0.01% Pacific Islander, 0.24% from other races, and 0.93% from two or more races. Approximately 1.01% of the population were Hispanic or Latino of any race.
There were 71,499 households, out of which 38.90% had children under the age of 18 living with them, 61.00% were married couples living together, 10.40% had a female householder with no husband present, and 23.70% were non-families. 18.90% of all households were made up of individuals, and 6.10% had someone living alone who was 65 years of age or older. The average household size was 2.74 and the average family size was 3.12.
In the county, the population was spread out, with 27.90% under the age of 18, 8.50% from 18 to 24, 31.80% from 25 to 44, 22.50% from 45 to 64, and 9.20% who were 65 years of age or older. The median age was 35 years. For every 100 females there were 98.90 males. For every 100 females age 18 and over, there were 95.90 males.
The median income for a household in the county was $60,636, and the median income for a family was $66,697. Males had a median income of $37,822 versus $25,440 for females. The per capita income for the county was $25,058. About 4.90% of families and 6.80% of the population were below the poverty line, including 8.10% of those under age 18 and 6.30% of those age 65 or over.
- School District 47 - Crystal City
- De Soto School District 73 - De Soto
- Early Childhood Center (PK)
- Athena Elementary School (K-06)
- Vineland Elementary School (K-06)
- De Soto Jr. High School (07-08)
- De Soto High School (09-12)
- Dunklin R-V School District - Herculaneum
- Festus R-IV School District - Festus
- Festus Elementary School (K-03)
- Festus Intermediate School (04-06)
- Festus Middle School (07-08)
- Festus High School (09-12)
- Fox C-6 School District - Arnold
- Grandview R-II School District - Hillsboro
- Hillsboro R-3 School District - Hillsboro
- Hillsboro Primary School (K-02)
- Hillsboro Elementary School (03-04)
- Hillsboro Middle School (05-06)
- Hillsboro Jr. High School (07-08)
- Hillsboro High School (09-12)
- Jefferson County R-VII School District - Festus
- Northwest R-I School District - High Ridge
- Brennan Woods Elementary School (K-05) - High Ridge
- Cedar Springs Elementary School (K-05) - House Springs
- High Ridge Elementary School (K-05) - High Ridge
- House Springs Elementary School (K-05) - House Springs
- Maple Grove Elementary School (K-05) - Dittmer
- Murphy Elementary School (K-05) - High Ridge
- Woodridge Middle School (06-08) - High Ridge
- Valley Middle School (06-08) - House Springs
- Northwest High School (09-12) - Cedar Hill
- Sunrise R-IX School District - De Soto
- Sunrise Elementary School (K-08) - De Soto
- Windsor C-1 School District - Imperial
- Christian Outreach School (K-12) - Hillsboro - Nondenominational Christian
- People's Christian Academy (K-12) - Arnold - Assembly of God/Pentecostal
- St. Pius X High School (09-12) - Festus - Roman Catholic
- Twin City Christian Academy (PK-12) - Festus - Baptist
- Good Shepherd Catholic School - (K-08) - Hillsboro - Roman Catholic
- Holy Child Elementary & Middle School - Arnold - (K-08) - Roman Catholic
- Manna Christian Academy - De Soto - (K-12) - Southern Baptist
- Our Lady's Catholic School - Festus - (K-08) - Roman Catholic
- Sacred Heart Catholic School - Festus - (K-08) - Roman Catholic
- St. Anthony's Catholic School - High Ridge - (K-08) - Roman Catholic
- St. Joseph's Catholic School - Imperial - (K-08) - Roman Catholic
- St. Johns Lutheran School - Arnold - (PK-08) - Lutheran
- St. Johns School - Imperial - (K-08) - Nondenominational Christianity
- St. Rose of Lima Catholic School - De Soto - (K-08) - Roman Catholic
- Crystal City Public Library
- De Soto Public Library
- Festus Public Library
- Herculaneum Public Library
- Jefferson County Public Library
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Historically, the Democratic Party has controlled politics at the local level in Jefferson County. Democrats hold all but two of the elected positions in the county. However, Republicans have made gains in recent years; they hold five of seven seats on the county council.
|Jefferson County, Missouri|
|Elected countywide officials|
|Circuit Clerk||Michael Reuter||Republican|
|County Clerk||Ken Waller||Republican|
|Prosecuting Attorney||Trisha Stefanski||Republican|
|Public Administrator||Steve Farmer||Republican|
Jefferson County is divided into seven legislative districts in the Missouri House of Representatives; six of which are held by Republicans and one held by a Democrat.
- District 97 John McCaherty (R-High Ridge). Consists of Murphy and part of Arnold.
|Republican||John C. McCaherty||10,386||74.00%||+7.02|
|Libertarian||Tracy J. Scott||3,650||26.00%||+26.00|
|Republican||John C. McCaherty||4,681||66.98%||+15.83|
|2016||53.62% 56.755||42.74% 45.234||3.64% 3,848|
|2012||41.75% 40,470||55.68% 53,971||2.56% 2,484|
|2008||34.42% 35,947||63.87% 66,697||1.71% 1,781|
|2004||49.23% 45,891||49.25% 45,909||1.52% 1,424|
|2000||47.05% 36,060||49.33% 37,808||3.62% 2,775|
|1996||43.90% 28,986||52.96% 34,970||3.14% 2,077|
|Republican||John C. McCaherty||6,946||51.15%|
- District 111 Shane Roden (R-Cedar Hill). Consists of Byrnes Mill, Cedar Hill, Cedar Hill Lakes, House Springs, and Scottsdale.
- District 112 Rob Vescovo (R-Arnold). Consists of areas near Arnold and Byrnes Mill.
- District 113 Dan Shaul (R-Imperial). Consists of most Arnold, all of Imperial and Kimmswick, and part of Barnhart.
- District 114 Becky Ruth (R-Festus). Consists of part of Barnhart, and all of Crystal City, Festus, Herculaneum, and Pevely.
|Democratic||T. J. McKenna||4,204||46.74%||-3.53|
|Democratic||T. J. McKenna||7,772||50.27%|
- District 115 Elaine Gannon (R-De Soto). Consists of Olympian Village and areas near De Soto.
|Constitution||Jerry Dollar, Jr.||256||4.96%||+4.96|
- District 118 Ben Harris (D-Hillsboro). Consists of De Soto and Hillsboro.
Jefferson County is also divided into two districts in the Missouri Senate.
- District 3 — Gary Romine (R-Farmington) Consists of De Soto, Hillsboro, and Olympian Village as well as part of Festus.
|Democratic||Joseph Fallert, Jr.||10,129||50.15|
Jefferson County is divided among three congressional districts. Prior to the 2012 election all of it was included in Missouri's 3rd Congressional District, but now about half of it is in the 3rd District, while the northeastern portion is in the 2nd Congressional District and the southern portion is in the 8th Congressional District.
|Green||David Justus Arnold||291||1.49%||+1.49|
A predominantly suburban county, Jefferson County is fairly independent-leaning at the federal level but does have a tendency to tilt Democratic. Presidential elections in Jefferson County are almost always extremely close; George W. Bush just narrowly carried the county in 2004 by less than 600 votes and by just over a half of a percentage point. Al Gore and Barack Obama also just narrowly carried the county in 2000 and 2008, respectively. Bill Clinton, however, did manage to carry Jefferson County by double digits both times in 1992 and 1996. However, in 2012 the county swung hard to Mitt Romney, who carried it with 55 percent of the vote. In 2016 Donald Trump carried the county with 65% of the vote, the largest margin of any candidate since Lyndon Johnson in 1964.
Typical of the suburban culture in most counties throughout the country, voters in Jefferson County tend to be rather centrist on social issues but more liberal on economic issues. In 2004, Missourians voted on a constitutional amendment to define marriage as the union between a man and a woman—it overwhelmingly passed Jefferson County with 72.56 percent of the vote. The initiative passed the state with 71 percent of support from voters as Missouri became the first state to ban same-sex marriage. In 2006, Missourians voted on a constitutional amendment to fund and legalize embryonic stem cell research in the state—it narrowly passed Jefferson County with 51.85 percent voting for the measure. The initiative narrowly passed the state with 51 percent of support from voters as Missouri became one of the first states in the nation to approve embryonic stem cell research. In 2006, Missourians voted on a proposition (Proposition B) to increase the minimum wage in the state to $6.50 an hour—it passed Jefferson County with 79.90 percent of the vote. The proposition strongly passed every single county in Missouri with 78.99 percent voting in favor as the minimum wage was increased to $6.50 an hour in the state. During the same election, voters in five other states also strongly approved increases in the minimum wage.
2008 Missouri presidential primary
U.S. Senator John McCain (R-Arizona) won Jefferson County with 33.54% of the vote. Former Governor Mitt Romney (R-Massachusetts finished in second with 30.45% of the vote, while former Governor Mike Huckabee (R-Arkansas) came in third with 30.19% in Jefferson County. Libertarian-leaning U.S. Representative Ron Paul (R-Texas) finished a distant fourth place with 3.94% of the vote in Jefferson County. McCain received all of Missouri's 58 delegates as the Republican Party utilizes the winner-takes-all system.
U.S. Senator Hillary Clinton (D-New York) won Jefferson County over Senator Barack Obama (D-Illinois) with 61.32% of the vote, while Obama received 35.02% of the vote. Although he withdrew from the race, former U.S. Senator John Edwards (D-North Carolina) still received 2.74% of the vote in Jefferson County. Jefferson County gave Clinton one of her strongest showings in a predominantly suburban county in the entire country.
Clinton had a large initial lead in Missouri at the beginning of the evening as the rural precincts began to report, leading several news organizations to call the state for her; however, Obama rallied from behind as the heavily African American precincts from St. Louis began to report and eventually put him over the top. In the end, Obama received 49.32 percent of the vote to Clinton's 47.90% — a 1.42% difference. Both candidates split Missouri's 72 delegates, as the Democratic Party utilizes proportional representation.
- Hillary Rodham Clinton received more votes, a total of 19,075, than any candidate from either party in Jefferson County during the 2008 Missouri Presidential Primaries. She also received more votes than the total number of votes cast in the entire Republican Primary in Jefferson County.
According to a 2012 census study by the University of Wisconsin Population Health Institute and the Robert Wood Johnson Foundation, Jefferson County led the Saint Louis metropolitan area in the number of adults who smoke, roughly 30% of all adult residents of Jefferson County smoked or used tobacco in some form, compared to the 19% national average and the 24% Missouri state average. Jefferson County and the state of Missouri led the nation in methamphetamine production, peaking in the mid-2000s.
Other unincorporated communities
- List of counties in Missouri
- National Register of Historic Places listings in Jefferson County, Missouri
- Matthew "Mack" Harrison Marsden
- "State & County QuickFacts". United States Census Bureau. Archived from the original on June 7, 2011. Retrieved September 9, 2013.
- "Find a County". National Association of Counties. Archived from the original on 2011-05-31. Retrieved 2011-06-07.
- Eaton, David Wolfe (1916). How Missouri Counties, Towns and Streams Were Named. The State Historical Society of Missouri. pp. 179.
- Gannett, Henry (1905). The Origin of Certain Place Names in the United States. Govt. Print. Off. pp. 168.
- "2010 Census Gazetteer Files". United States Census Bureau. August 22, 2012. Archived from the original on October 21, 2013. Retrieved November 16, 2014.
- "Population and Housing Unit Estimates". Retrieved March 26, 2020.
- "U.S. Decennial Census". United States Census Bureau. Retrieved November 16, 2014.
- "Historical Census Browser". University of Virginia Library. Archived from the original on August 11, 2012. Retrieved November 16, 2014.
- "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Archived from the original on December 3, 2014. Retrieved November 16, 2014.
- "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). United States Census Bureau. Archived (PDF) from the original on December 18, 2014. Retrieved November 16, 2014.
- 2010 census report for Jefferson County, Missouri
- "U.S. Census website". United States Census Bureau. Retrieved 2008-01-31.
- "Registered Voters in Missouri 2008". Archived from the original on 2011-11-16.
- "Archived copy". Archived from the original on 2012-10-25. Retrieved 2012-10-28.CS1 maint: archived copy as title (link) Retrieved on Jul. 9, 2013
- Breeding, Marshall. "Crystal City Public Library". Libraries.org. Archived from the original on May 10, 2018. Retrieved May 8, 2017.
- Breeding, Marshall. "De Soto Public Library". Libraries.org. Archived from the original on May 10, 2018. Retrieved May 8, 2017.
- Breeding, Marshall. "Festus Public Library". Libraries.org. Archived from the original on May 10, 2018. Retrieved May 8, 2017.
- Breeding, Marshall. "Herculaneum Public Library". Libraries.org. Archived from the original on May 10, 2018. Retrieved May 8, 2017.
- Breeding, Marshall. "Jefferson County Public Library". Libraries.org. Archived from the original on May 10, 2018. Retrieved May 8, 2017.
- "Official Results November 8, 2016 General Election" (PDF). Jefferson County Clerk. November 8, 2016. Archived (PDF) from the original on April 3, 2017. Retrieved April 2, 2017.
- "November 4, 2014 General Election Official Results" (PDF). Jefferson County Clerk. November 4, 2014. Archived (PDF) from the original on November 29, 2014. Retrieved March 31, 2016.
- "Certification of Election Results" (PDF). Jefferson County Clerk. November 6, 2012. Archived (PDF) from the original on March 4, 2016. Retrieved March 31, 2016.
- "June 4, 2013 Special Election" (PDF). Jefferson County Clerk. June 4, 2013. Archived (PDF) from the original on September 10, 2015. Retrieved March 31, 2016.
- Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections". uselectionatlas.org. Archived from the original on 2018-03-23. Retrieved 2018-03-25.
- [email protected] > 636-937-6249, LEAH THORSEN •. "Jefferson County leads area in smoking rate". stltoday.com. Retrieved 2 March 2019.
- Stateline.org, Christine Vestal. "Meth making a comeback, but it's not your neighbors cooking it anymore". stltoday.com.
- Digitized 1930 Plat Book of Jefferson County from University of Missouri Division of Special Collections, Archives, and Rare Books
- Jefferson County Heritage and Historical Society of Missouri
- Jefferson County Online