Counties in Tennessee by median age on 1 July (US county estimates), 2025

Cumberland County had the highest median age on 1 July (US county estimates) of 95 counties in 2025, at 54.8 years. Montgomery County had the lowest, at 32.5 years. The median was 42.9 years. Source: the U.S. Census Bureau.

Highest54.8Cumberland County

Lowest32.5Montgomery County

Median42.995 counties

Map of counties, 2025

Under 40
40 to 41
41 to 43
43 to 45
45 to 46
46 and over

years, 2025. 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. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2025

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	2025 years	Change on 2024
1	Cumberland County	54.8	+0.3
2	Pickett County	52.2	+0.1
3	Loudon County	50.8	+0.4
4	Clay County	48.8	+0.6
5	Fayette County	48.5	+0.2
6	Johnson County	48.3	-0.1
7	Unicoi County	48.2	+0.2
8	Fentress County	47.9	+0.1
9	Benton County	47.8	-0.4
10	Polk County	47.4	+0.4
11	Jackson County	47.3	+0.1
12	Henry County	46.8	+0.1
13	Decatur County	46.7	-0.4
13	Moore County	46.7	+0.2
15	Van Buren County	46.6	-0.5
16	Hardin County	46.5	0
17	Hawkins County	46.4	+0.1
18	Cocke County	46	0
18	Grainger County	46	-0.2
18	Meigs County	46	+0.3
18	Roane County	46	-0.2
22	Carter County	45.8	+0.3
22	Hancock County	45.8	+0.4
22	Monroe County	45.8	+0.1
25	Marion County	45.7	+0.1
26	Greene County	45.3	+0.1
27	Wayne County	45.2	-0.1
28	Sullivan County	45.1	-0.1
29	Overton County	44.8	+0.1
30	Bledsoe County	44.6	+0.1
30	Houston County	44.6	+0.3
30	Jefferson County	44.6	0
33	Sequatchie County	44.5	+0.2
34	Haywood County	44.2	+0.3
35	Campbell County	44.1	-0.1
36	McNairy County	43.9	-0.1
36	Perry County	43.9	0
38	Blount County	43.8	-0.1
38	Giles County	43.8	-0.2
38	Grundy County	43.8	+0.2
38	Stewart County	43.8	0
42	Humphreys County	43.7	+0.2
43	Sevier County	43.6	+0.2
44	White County	43.5	+0.1
45	Obion County	43.2	+0.1
46	Lincoln County	43.1	+0.1
47	Claiborne County	43	-0.1
48	Cannon County	42.9	0
49	Franklin County	42.8	0
49	Union County	42.8	+0.1
51	DeKalb County	42.7	+0.3
51	Lewis County	42.7	-0.3
53	Lake County	42.6	0
54	Henderson County	42.4	+0.1
55	Carroll County	42.3	+0.1
56	McMinn County	42.2	-0.1
56	Rhea County	42.2	0
58	Morgan County	42.1	+0.2
59	Anderson County	41.9	+0.1
59	Cheatham County	41.9	0
61	Hickman County	41.7	-0.1
62	Hardeman County	41.5	0
63	Williamson County	41.4	+0.4
64	Washington County	41.2	0
65	Smith County	41.1	-0.1
66	Scott County	40.9	+0.2
66	Warren County	40.9	+0.3
68	Dickson County	40.8	+0.1
69	Coffee County	40.5	-0.2
69	Gibson County	40.5	+0.1
71	Crockett County	40.4	-0.4
71	Lauderdale County	40.4	+0.1
73	Sumner County	40.1	+0.2
74	Bradley County	39.9	0
74	Tipton County	39.9	+0.1
76	Lawrence County	39.7	+0.2
77	Dyer County	39.6	0
78	Hamblen County	39.5	-0.1
78	Marshall County	39.5	+0.3
78	Robertson County	39.5	+0.2
81	Hamilton County	39.4	+0.2
82	Madison County	39.3	-0.3
82	Wilson County	39.3	0
84	Maury County	39.1	-0.1
85	Trousdale County	39	0
86	Macon County	38.5	-0.1
87	Chester County	38.2	0
88	Weakley County	38.1	-0.1
89	Knox County	37.7	0
90	Bedford County	37.4	+0.1
91	Shelby County	36.9	+0.2
92	Putnam County	36.5	0
93	Rutherford County	34.9	+0.2
94	Davidson County	34.6	+0.2
95	Montgomery County	32.5	+0.3

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 Tennessee by median age on 1 July (US county estimates), 2025) [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 Tennessee by median age on 1 July (US county estimates), 2025. 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/tennessee-counties. 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 Tennessee by median age on 1 July (US county estimates), 2025. 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/tennessee-counties.

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 Tennessee by median age on 1 July (US county estimates), 2025 [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/tennessee-counties (Accessed: 12 October 2026).

BibTeX

@misc{census_counties_in_tennessee_by_2025,
  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 Tennessee by median age on 1 July (US county estimates), 2025}},
  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/tennessee-counties. 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 Tennessee by median age on 1 July (US county estimates), 2025
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/tennessee-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/median-age-july-1-us-counties/tennessee-counties.
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)?

Cumberland County, with 54.8 years in 2025, according to the U.S. Census Bureau.

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

Montgomery County, with 32.5 years in 2025.

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.