Jefferson County | |
---|---|
Coordinates: 39°13′N95°24′W / 39.217°N 95.400°W | |
Country | United States |
State | Kansas |
Founded | August 25, 1855 |
Named for | Thomas Jefferson |
Seat | Oskaloosa |
Largest city | Valley Falls |
Area | |
• Total | 557 sq mi (1,440 km2) |
• Land | 533 sq mi (1,380 km2) |
• Water | 24 sq mi (60 km2) 4.3% |
Population | |
• Total | 18,368 |
18,327 | |
• Density | 33/sq mi (13/km2) |
Time zone | UTC−6 (Central) |
• Summer (DST) | UTC−5 (CDT) |
Congressional district | 1st |
Website | jfcountyks.com |
Jefferson County is a county located in the U.S. state of Kansas. Its county seat and most populous city is Oskaloosa. [3] As of the 2020 census, the county population was 18,368. [1] The county was named after Thomas Jefferson, the 3rd president of the United States.
For many millennia, the Great Plains of North America was inhabited by nomadic Native Americans. From the 16th century to 18th century, the Kingdom of France claimed ownership of large parts of North America. In 1762, after the French and Indian War, France secretly ceded New France to Spain, per the Treaty of Fontainebleau.
In 1802, Spain returned most of the land to France, but keeping title to about 7,500 square miles. In 1803, most of the land for modern day Kansas was acquired by the United States from France as part of the 828,000 square mile Louisiana Purchase for 2.83 cents per acre.
In 1854, the Kansas Territory was organized, then in 1861 Kansas became the 34th U.S. state. In 1855, Jefferson County was established, and was named for President Thomas Jefferson. [4] Settlement of the county was slowed by events prior to and during the Civil War, but the present day unincorporated community of Thompsonville (3 miles northwest of Perry on the Delaware River) was the first established in 1851 by Mormon settlers who initially refused to accompany the main group led by Brigham Young to the Salt Lake Valley. The settlement was first abandoned due to the violence resulting from the border wars, but was re-established when the Civil War ended.[ citation needed ]
According to the U.S. Census Bureau, the county has a total area of 557 square miles (1,440 km2), of which 533 square miles (1,380 km2) is land and 2.4 square miles (6.2 km2) (4.3%) is water. [5]
Census | Pop. | Note | %± |
---|---|---|---|
1860 | 4,459 | — | |
1870 | 12,526 | 180.9% | |
1880 | 15,563 | 24.2% | |
1890 | 16,620 | 6.8% | |
1900 | 17,533 | 5.5% | |
1910 | 15,826 | −9.7% | |
1920 | 14,750 | −6.8% | |
1930 | 14,129 | −4.2% | |
1940 | 12,718 | −10.0% | |
1950 | 11,084 | −12.8% | |
1960 | 11,252 | 1.5% | |
1970 | 11,945 | 6.2% | |
1980 | 15,207 | 27.3% | |
1990 | 15,905 | 4.6% | |
2000 | 18,426 | 15.9% | |
2010 | 19,126 | 3.8% | |
2020 | 18,368 | −4.0% | |
2023 (est.) | 18,327 | [6] | −0.2% |
U.S. Decennial Census [7] 1790-1960 [8] 1900-1990 [9] 1990-2000 [10] 2010-2020 [1] |
Jefferson County is included in the Topeka, KS Metropolitan Statistical Area.
At the 2000 Census, there were 18,426 people, 6,830 households and 5,190 families residing in the county. The population density was 34 inhabitants per square mile (13/km2). There were 7,491 housing units at an average density of 14 per square mile (5.4/km2). The racial makeup of the county was 96.70% White, 0.92% Native American, 0.37% Black or African American, 0.17% Asian, 0.01% Pacific Islander, 0.42% from other races, and 1.41% from two or more races. Hispanic or Latino of any race were 1.28% of the population.
There were 6,830 households, of which 35.70% had children under the age of 18 living with them, 65.20% were married couples living together, 7.00% had a female householder with no husband present, and 24.00% were non-families. 20.10% of all households were made up of individuals, and 9.30% had someone living alone who was 65 years of age or older. The average household size was 2.66 and the average family size was 3.07.
27.40% of the population were under the age of 18, 7.00% from 18 to 24, 28.00% from 25 to 44, 24.90% from 45 to 64, and 12.80% who were 65 years of age or older. The median age was 38 years. For every 100 females, there were 102.60 males. For every 100 females age 18 and over, there were 98.90 males.
The median household income was $45,535 and the median family income was $50,557. Males had a median income of $36,174 compared with $25,468 for females. The per capita income for the county was $19,373. About 5.30% of families and 6.70% of the population were below the poverty line, including 6.90% of those under age 18 and 7.70% of those age 65 or over.
Year | Republican | Democratic | Third party(ies) | |||
---|---|---|---|---|---|---|
No. | % | No. | % | No. | % | |
2024 | 6,543 | 67.36% | 2,973 | 30.61% | 197 | 2.03% |
2020 | 6,334 | 64.75% | 3,194 | 32.65% | 254 | 2.60% |
2016 | 5,213 | 61.77% | 2,518 | 29.83% | 709 | 8.40% |
2012 | 4,827 | 60.24% | 2,977 | 37.15% | 209 | 2.61% |
2008 | 5,220 | 58.32% | 3,542 | 39.58% | 188 | 2.10% |
2004 | 5,408 | 61.50% | 3,253 | 37.00% | 132 | 1.50% |
2000 | 4,423 | 56.15% | 3,000 | 38.09% | 454 | 5.76% |
1996 | 3,781 | 49.31% | 2,757 | 35.95% | 1,130 | 14.74% |
1992 | 2,569 | 33.02% | 2,538 | 32.62% | 2,673 | 34.36% |
1988 | 3,605 | 55.53% | 2,810 | 43.28% | 77 | 1.19% |
1984 | 4,524 | 68.93% | 1,990 | 30.32% | 49 | 0.75% |
1980 | 4,046 | 64.60% | 1,776 | 28.36% | 441 | 7.04% |
1976 | 3,225 | 55.12% | 2,470 | 42.22% | 156 | 2.67% |
1972 | 3,679 | 72.69% | 1,237 | 24.44% | 145 | 2.87% |
1968 | 2,781 | 56.58% | 1,355 | 27.57% | 779 | 15.85% |
1964 | 2,380 | 53.07% | 2,066 | 46.06% | 39 | 0.87% |
1960 | 3,353 | 65.73% | 1,739 | 34.09% | 9 | 0.18% |
1956 | 3,677 | 70.24% | 1,536 | 29.34% | 22 | 0.42% |
1952 | 3,980 | 73.47% | 1,411 | 26.05% | 26 | 0.48% |
1948 | 2,986 | 59.04% | 2,010 | 39.74% | 62 | 1.23% |
1944 | 3,504 | 68.73% | 1,575 | 30.89% | 19 | 0.37% |
1940 | 4,330 | 65.81% | 2,212 | 33.62% | 38 | 0.58% |
1936 | 3,711 | 54.25% | 3,105 | 45.39% | 25 | 0.37% |
1932 | 2,974 | 47.42% | 3,185 | 50.79% | 112 | 1.79% |
1928 | 4,810 | 74.77% | 1,601 | 24.89% | 22 | 0.34% |
1924 | 4,422 | 72.71% | 1,320 | 21.70% | 340 | 5.59% |
1920 | 3,463 | 68.86% | 1,535 | 30.52% | 31 | 0.62% |
1916 | 3,174 | 50.49% | 2,919 | 46.44% | 193 | 3.07% |
1912 | 1,155 | 29.75% | 1,537 | 39.59% | 1,190 | 30.65% |
1908 | 2,270 | 55.57% | 1,720 | 42.11% | 95 | 2.33% |
1904 | 2,568 | 65.26% | 1,199 | 30.47% | 168 | 4.27% |
1900 | 2,374 | 54.66% | 1,912 | 44.02% | 57 | 1.31% |
1896 | 2,322 | 49.99% | 2,276 | 49.00% | 47 | 1.01% |
1892 | 2,026 | 49.95% | 0 | 0.00% | 2,030 | 50.05% |
1888 | 2,268 | 57.00% | 1,601 | 40.24% | 110 | 2.76% |
Like all of Kansas outside the eastern cities, Jefferson County is a Republican stronghold, having not been won by a Democrat since Franklin D. Roosevelt’s 1932 landslide – although it was one of three Kansas counties to give a plurality to Ross Perot in 1992.
Jefferson County was a prohibition, or "dry", county until the Kansas Constitution was amended in 1986 and voters approved the sale of alcoholic liquor by the individual drink with a 30% food sales requirement. [12]
The county voted "No" on the 2022 Kansas abortion referendum, an anti-abortion ballot measure, by 55% to 45% despite backing Donald Trump with 65% of the vote to Joe Biden's 33% in the 2020 presidential election. [13]
Jefferson County has two newspapers which are still in operation, The Oskaloosa Independent and The Valley Falls Vindicator. Both of which are owned by Davis Publications. [14] Together, the two papers cover the happenings of Jefferson County and its townships. The editor for both papers is Holly Allen.
School districts include: [15]
List of townships / incorporated cities / unincorporated communities / extinct former communities within Jefferson County. [16]
† means a community is designated a Census-Designated Place (CDP) by the United States Census Bureau.
Jefferson County is divided into twelve townships. None of the cities within the county are considered governmentally independent, and all figures for the townships include those of the cities. In the following table, the population center is the largest city (or cities) included in that township's population total, if it is of a significant size.
Montgomery County is a county located in Southeast Kansas. Its county seat is Independence, and its most populous city is Coffeyville. As of the 2020 census, the county population was 31,486. The county was named after Richard Montgomery, a major general during the American Revolutionary War.
Wilson County is a county located in Southeast Kansas. Its county seat is Fredonia. As of the 2020 census, the county population was 8,624. The county was named after Hiero Wilson, a colonel in the American Civil War.
Washington County is a county located in the U.S. state of Kansas. Its county seat and largest city is Washington. As of the 2020 census, the county population was 5,530. The county was named for George Washington, the 1st president of the United States.
Thomas County is a county located in the U.S. state of Kansas. Its county seat is Colby. As of the 2020 census, the county population was 7,930. The county was named after George Thomas, a general during the American Civil War.
Reno County is a county located in the U.S. state of Kansas. Its county seat and largest city is Hutchinson. As of the 2020 census, the population was 61,898. The county is named for Jesse Reno, a general during the American Civil War.
Pottawatomie County is a county located in the U.S. state of Kansas. Its county seat is Westmoreland. As of the 2020 census, the county population was 25,348. The county was named for the Potawatomi tribe.
Phillips County is a county located in the U.S. state of Kansas. Its county seat and largest city is Phillipsburg. As of the 2020 census, the county population was 4,981. The county was named after William Phillips, a free-state abolition journalist and colonel in the American Civil War.
Ottawa County is a county located in the U.S. state of Kansas. Its county seat and largest city is Minneapolis. As of the 2020 census, the county population was 5,735. The county was named after the Odawa tribe.
Osage County is a county located in the U.S. state of Kansas. Its county seat is Lyndon, and its most populous city is Osage City. As of the 2020 census, the county population was 15,766. The county was originally organized in 1855 as Weller County, then renamed in 1859 after the Osage tribe.
Neosho County is a county located in Southeast Kansas. Its county seat is Erie. As of the 2020 census, the county population was 15,904. The county was named for the Neosho River, which passes through the county.
Nemaha County is a county located in the northeastern part of the U.S. state of Kansas. Its county seat is Seneca. As of the 2020 census, the county population was 10,273. The county was named for the Nemaha River.
Leavenworth County is a county located in the U.S. state of Kansas and is part of the Kansas City metropolitan area. Its county seat and most populous city is Leavenworth. As of the 2020 census, the county population was 81,881. The county was named after Henry Leavenworth, a general in the Indian Wars who established Fort Leavenworth.
Lane County is a county located in the U.S. state of Kansas. Its county seat is Dighton, the only incorporated city in the county. As of the 2020 census, the county population was 1,574, making it the third-least populous county in Kansas. The county was named after James Lane, a leader of the Jayhawker abolitionist movement and served as one of the first U.S. senators from Kansas.
Jackson County is a county in the U.S. state of Kansas. Its county seat and most populous city is Holton. As of the 2020 census, the county population was 13,232. The county, first named Calhoun County for pro-slavery South Carolina Senator John C. Calhoun, was renamed in 1859 for President Andrew Jackson. The Prairie Band Potawatomi Indian Reservation, near the center of the county, comprises about 18.5% of the county's area.
Harvey County is a county located in the U.S. state of Kansas. Its county seat and most populous city is Newton. As of the 2020 census, the county population was 34,024. The county was named for James Harvey, a U.S. senator and 5th governor of Kansas.
Gray County is a county located in the U.S. state of Kansas. Its county seat and most populous city is Cimarron. As of the 2020 census, the county population was 5,653. The county was named after Alfred Gray, a 19th century Kansas politician.
Coffey County is a county located in Eastern Kansas. Its county seat and most populous city is Burlington. As of the 2020 census, the county population was 8,360. It was named after A.M. Coffey, a territorial legislator and Free-Stater during Bleeding Kansas era.
Brown County is a county located in the northeast portion of the U.S. state of Kansas. Its county seat and most populous city is Hiawatha. As of the 2020 census, the county population was 9,508. The county was named after Albert G. Brown, a U.S. Senator from Mississippi and Kansas statehood advocate. The Kickapoo Indian Reservation of Kansas, the majority of the Sac and Fox Reservation, and the majority of the Iowa Reservation of Kansas and Nebraska are located within the county.
Atchison County is a county located in the northeast portion of the U.S. state of Kansas. Its county seat and most populous city is Atchison. As of the 2020 census, the county population was 16,348. The county was named in honor of David Atchison, a U.S. Senator from Missouri and border ruffian during the "Bleeding Kansas" era.
Oskaloosa is a city in and the county seat of Jefferson County, Kansas, United States. As of the 2020 census, the population of the city was 1,110.