Counties in Kansas by median age on 1 July (US county estimates)

Jewell County had the highest median age on 1 July (US county estimates) of 105 counties in 2023, at 50.4 years. Riley County had the lowest, at 25.2 years. The median was 41.5 years. Source: the U.S. Census Bureau.

Highest50.4Jewell County

Lowest25.2Riley County

Median41.5105 counties

Top 40 counties, 2023

years. Source: U.S. Census Bureau, Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage. Retrieved 2026-10-12.

Full ranking

Rank	Counties	2023 years	Change on 2022
1	Jewell County	50.4	-0.1
1	Smith County	50.4	-0.8
3	Elk County	50.1	-0.4
4	Trego County	49.2	0
5	Decatur County	49.1	-1.4
5	Ness County	49.1	+0.3
7	Graham County	48.9	-0.2
8	Rush County	48.6	+1
9	Osborne County	47.5	-0.5
10	Greenwood County	47.3	-0.1
11	Morris County	46.9	+0.5
12	Republic County	46.7	-0.7
13	Lincoln County	46.4	-0.4
13	Woodson County	46.4	-0.2
15	Barber County	46	+0.2
16	Phillips County	45.9	-0.8
17	Linn County	45.6	+0.1
18	Rooks County	45.5	0
19	Lane County	45.4	-0.4
20	Comanche County	45.3	+0.2
20	Rawlins County	45.3	0
22	Clay County	45.1	+0.1
23	Cheyenne County	44.8	-0.6
24	Chase County	44.7	-0.6
25	Clark County	44.6	+1.5
26	Russell County	44.5	-0.3
27	Coffey County	44.4	-0.1
28	Jefferson County	44.3	+0.4
28	Mitchell County	44.3	-0.6
30	Chautauqua County	44.1	-0.4
30	Marion County	44.1	+0.1
32	Osage County	43.9	0
33	Wilson County	43.8	+0.5
34	Hodgeman County	43.7	-0.5
34	Marshall County	43.7	+0.2
34	Morton County	43.7	+0.4
37	Edwards County	43.6	-1.4
37	Ellsworth County	43.6	+0.4
37	Kingman County	43.6	-0.7
40	Ottawa County	43.4	-0.1
41	Pawnee County	43.1	+0.3
42	Dickinson County	42.9	-0.3
42	Stafford County	42.9	+0.2
42	Wabaunsee County	42.9	-0.2
45	Washington County	42.8	-0.3
46	Harper County	42.6	-0.7
47	Cherokee County	42.3	-0.1
48	Sheridan County	42.2	-0.2
49	Brown County	42.1	+0.3
50	Anderson County	41.8	0
51	Norton County	41.7	-0.4
51	Sumner County	41.7	+0.1
53	Miami County	41.5	0
54	Montgomery County	41.4	+0.2
55	Allen County	41.3	0
55	Harvey County	41.3	+0.3
55	Reno County	41.3	+0.2
58	Doniphan County	41.2	+0.2
59	Cloud County	41.1	+0.1
60	Gove County	41	+0.4
61	Wallace County	40.9	-0.6
62	Jackson County	40.8	-0.2
63	Barton County	40.7	+0.1
64	Greeley County	40.6	+1
64	Nemaha County	40.6	0
64	Neosho County	40.6	+0.2
67	Kiowa County	40.5	-0.4
67	Labette County	40.5	-0.1
69	Saline County	40.4	+0.1
70	Franklin County	40.3	-0.1
70	Pratt County	40.3	+0.5
70	Shawnee County	40.3	+0.2
73	McPherson County	40.2	+0.1
74	Logan County	39.8	-0.1
74	Rice County	39.8	+0.2
76	Scott County	39.5	+0.4
76	Wichita County	39.5	-0.3
78	Cowley County	39.3	+0.2
79	Johnson County	39	+0.2
80	Meade County	38.9	-0.2
80	Sherman County	38.9	-0.1
82	Leavenworth County	38.8	+0.1
83	Bourbon County	38.7	-0.1
83	Butler County	38.7	+0.2
85	Atchison County	37.7	+0.1
86	Stanton County	37.3	+0.4
87	Pottawatomie County	36.9	+0.5
87	Stevens County	36.9	+0.2
87	Thomas County	36.9	+0.2
90	Sedgwick County	36.6	+0.1
91	Gray County	36.5	-0.4
92	Kearny County	36.4	+0.3
93	Lyon County	35.1	-0.1
94	Hamilton County	34.8	-0.6
95	Ellis County	34.7	+0.3
95	Wyandotte County	34.7	-0.1
97	Haskell County	34.4	-1.2
98	Crawford County	34.3	+0.1
99	Grant County	34.2	-0.2
100	Douglas County	32.5	+0.1
100	Finney County	32.5	+0.2
102	Ford County	31.6	-0.1
103	Seward County	30.8	-0.3
104	Geary County	28.2	0
105	Riley County	25.2	+0.1

Other periods

About this ranking

Age that divides the resident population of a US county into two halves of equal size on 1 July, from Census Bureau population estimates calculated by single year of age.

Counties only: the county file has no state or national medians, and medians cannot be added up. A single-year estimate, unlike median_age, which for US places is a five-year American Community Survey estimate.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Census Bureau. (2026). Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage (Counties in Kansas by median age on 1 July (US county estimates), 2023) [Data set]. Retrieved October 12, 2026, from https://www.census.gov/programs-surveys/popest/data/data-sets.html

MLA 9

Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage, Counties in Kansas by median age on 1 July (US county estimates), 2023. U.S. Census Bureau, 25 June 2026, https://www.census.gov/programs-surveys/popest/data/data-sets.html. Invokely, https://invokely.ai/rankings/median-age-july-1-us-counties/kansas-counties?period=2023. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage. Counties in Kansas by median age on 1 July (US county estimates), 2023. Dataset. Accessed October 12, 2026. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Also distributed by Invokely, https://invokely.ai/rankings/median-age-july-1-us-counties/kansas-counties?period=2023.

Harvard

U.S. Census Bureau (2026) Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage, Counties in Kansas by median age on 1 July (US county estimates), 2023 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/rankings/median-age-july-1-us-counties/kansas-counties?period=2023 (Accessed: 12 October 2026).

BibTeX

@misc{census_counties_in_kansas_by_2023,
  author = {{U.S. Census Bureau}},
  title = {{Population Estimates Program, county population by age and sex: median age (MEDIAN\_AGE\_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage: Counties in Kansas by median age on 1 July (US county estimates), 2023}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www.census.gov/programs-surveys/popest/data/data-sets.html},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/median-age-july-1-us-counties/kansas-counties?period=2023. Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: median age (MEDIAN\_AGE\_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.},
}

RIS

TY  - DATA
AU  - U.S. Census Bureau
TI  - Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage: Counties in Kansas by median age on 1 July (US county estimates), 2023
PY  - 2026
DA  - 2026/06/25
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www.census.gov/programs-surveys/popest/data/data-sets.html
L2  - https://invokely.ai/rankings/median-age-july-1-us-counties/kansas-counties?period=2023
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/median-age-july-1-us-counties/kansas-counties?period=2023.
N1  - Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.
ER  -

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Questions

Which county has the highest median age on 1 July (US county estimates)?

Jewell County, with 50.4 years in 2023, according to the U.S. Census Bureau.

Which county has the lowest median age on 1 July (US county estimates)?

Riley County, with 25.2 years in 2023.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage. Retrieved 2026-10-12.