Jefferson County, Kansas

Jefferson County
	Jefferson County, Kansas
	Map
	; Location in the state of Kansas
	; Kansas's location in the U.S.
	Statistics
Founded	August 25, 1855
Seat	Oskaloosa
Largest City	Valley Falls
Area; - Total; - Land; - Water	; 557 sq mi (1,443 km²); 533 sq mi (1,380 km²); 24 sq mi (62 km²), 4.3%
Population; - Density	; ;
Time zone	Central: UTC-6/-5
	Named for: Thomas Jefferson

Jefferson County (county code JF) is a county in the U.S. state of Kansas. In 2020, 18,368 people lived there.^[1] Its county seat is Oskaloosa.^[2] Its biggest city is Valley Falls.

Geography

The U.S. Census Bureau says that the county has a total area of 557 square miles (1,440 km²). Of that, 533 square miles (1,380 km²) is land and 2.4 square miles (6.2 km²) (4.3%) is water.^[3]

People

Historical populations
Census	Pop.	%±
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%
U.S. Decennial Census^[4] 1790-1960^[5] 1900-1990^[6] 1990-2000^[7] 2010-2020^[1]

Population pyramid

Jefferson County is included in the Topeka, KS Metropolitan Statistical Area.

Government

Presidential elections

Presidential Elections Results

Education

Unified school districts

Communities

2005 KDOT Map of Jefferson County (map legend)

Cities

References

↑ ^1.0 ^1.1 "QuickFacts: Jefferson County, Kansas". United States Census Bureau. Retrieved October 1, 2023.
↑ "Find a County". National Association of Counties. Archived from the original on 2011-05-31. Retrieved 2011-06-07.
↑ "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23.
↑ "U.S. Decennial Census". United States Census Bureau. Archived from the original on April 26, 2015. Retrieved July 26, 2014.
↑ "Historical Census Browser". University of Virginia Library. Archived from the original on August 11, 2012. Retrieved July 26, 2014.
↑ "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved July 26, 2014.
↑ "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). United States Census Bureau. Retrieved July 26, 2014.
↑ "Dave Leip's Atlas of U.S. Presidential Elections".

Notes

↑ This comprises 1,973 votes (48.6%) were for Populist James B. Weaver (who was supported by the state’s Democrats) and 57 votes (1.4%) for Prohibition Party candidate John Bidwell.

Other websites

County

Maps

Jefferson County Maps: Current, Historic, KDOT
Kansas Highway Maps: Current, Historic, KDOT
Kansas Railroad Maps: Current, 1996, 1915, KDOT and Kansas Historical Society

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[2020QF-1] 1.0 ^1.1 "QuickFacts: Jefferson County, Kansas". United States Census Bureau. Retrieved October 1, 2023.

[GR6-2] "Find a County". National Association of Counties. Archived from the original on 2011-05-31. Retrieved 2011-06-07.

[GR1-3] "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23.

[4] "U.S. Decennial Census". United States Census Bureau. Archived from the original on April 26, 2015. Retrieved July 26, 2014.

[5] "Historical Census Browser". University of Virginia Library. Archived from the original on August 11, 2012. Retrieved July 26, 2014.

[6] "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved July 26, 2014.

[7] "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). United States Census Bureau. Retrieved July 26, 2014.

[8] "Dave Leip's Atlas of U.S. Presidential Elections".

[9] This comprises 1,973 votes (48.6%) were for Populist James B. Weaver (who was supported by the state’s Democrats) and 57 votes (1.4%) for Prohibition Party candidate John Bidwell.

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[a]

Year	Republican	Democratic	Third Parties
2020	64.8% 6,334	32.7% 3,194	2.6% 254
2016	61.8% 5,213	29.8% 2,518	8.4% 709
2012	60.2% 4,827	37.2% 2,977	2.6% 209
2008	58.3% 5,220	39.6% 3,542	2.1% 188
2004	61.5% 5,408	37.0% 3,253	1.5% 132
2000	56.2% 4,423	38.1% 3,000	5.8% 454
1996	49.3% 3,781	36.0% 2,757	14.7% 1,130
style="text-align:center;" style="background:Template:United States political party color"\|1992	33.0% 2,569	32.6% 2,538	34.4% 2,673
1988	55.5% 3,605	43.3% 2,810	1.2% 77
1984	68.9% 4,524	30.3% 1,990	0.8% 49
1980	64.6% 4,046	28.4% 1,776	7.0% 441
1976	55.1% 3,225	42.2% 2,470	2.7% 156
1972	72.7% 3,679	24.4% 1,237	2.9% 145
1968	56.6% 2,781	27.6% 1,355	15.9% 779
1964	53.1% 2,380	46.1% 2,066	0.9% 39
1960	65.7% 3,353	34.1% 1,739	0.2% 9
1956	70.2% 3,677	29.3% 1,536	0.4% 22
1952	73.5% 3,980	26.1% 1,411	0.5% 26
1948	59.0% 2,986	39.7% 2,010	1.2% 62
1944	68.7% 3,504	30.9% 1,575	0.4% 19
1940	65.8% 4,330	33.6% 2,212	0.6% 38
1936	54.3% 3,711	45.4% 3,105	0.4% 25
1932	47.4% 2,974	50.8% 3,185	1.8% 112
1928	74.8% 4,810	24.9% 1,601	0.3% 22
1924	72.7% 4,422	21.7% 1,320	5.6% 340
1920	68.9% 3,463	30.5% 1,535	0.6% 31
1916	50.5% 3,174	46.4% 2,919	3.1% 193
1912	29.8% 1,155	39.6% 1,537	30.7% 1,190
1908	55.6% 2,270	42.1% 1,720	2.3% 95
1904	65.3% 2,568	30.5% 1,199	4.3% 168
1900	54.7% 2,374	44.0% 1,912	1.3% 57
1896	50.0% 2,322	49.0% 2,276	1.0% 47
1892	50.0% 2,026		50.0% 2,030^[a]
1888	57.0% 2,268	40.2% 1,601	2.8% 110