Data / Rankings / Median age on 1 July (US county estimates) / Counties in Florida

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

Sumter County had the highest median age on 1 July (US county estimates) of 67 counties in 2015, at 66.3 years. Leon County had the lowest, at 31.2 years. The median was 43.1 years. Source: the U.S. Census Bureau.

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Highest66.3Sumter County
Lowest31.2Leon County
Median43.167 counties

Map of counties, 2015

Alachua County: 31.2 yearsBaker County: 37.9 yearsBay County: 39.6 yearsBradford County: 41.6 yearsBrevard County: 47.6 yearsBroward County: 40.3 yearsCalhoun County: 41.3 yearsCharlotte County: 58.2 yearsCitrus County: 56.5 yearsClay County: 39.3 yearsCollier County: 49.9 yearsColumbia County: 41.7 yearsDeSoto County: 41.2 yearsDixie County: 47.3 yearsDuval County: 36.7 yearsEscambia County: 38.3 yearsFlagler County: 51.3 yearsFranklin County: 46.2 yearsGadsden County: 41.4 yearsGilchrist County: 43.2 yearsGlades County: 44.2 yearsGulf County: 44.1 yearsHamilton County: 41 yearsHardee County: 35.3 yearsHendry County: 34.2 yearsHernando County: 49.5 yearsHighlands County: 53.2 yearsHillsborough County: 36.7 yearsHolmes County: 43.1 yearsIndian River County: 51.9 yearsJackson County: 41.9 yearsJefferson County: 47.4 yearsLafayette County: 39.9 yearsLake County: 47.1 yearsLee County: 47.8 yearsLeon County: 31.2 yearsLevy County: 47.5 yearsLiberty County: 38.5 yearsMadison County: 43.4 yearsManatee County: 47.3 yearsMarion County: 49.3 yearsMartin County: 51.5 yearsMiami-Dade County: 39.6 yearsMonroe County: 48.1 yearsNassau County: 45.5 yearsOkaloosa County: 37.1 yearsOkeechobee County: 40.9 yearsOrange County: 34.4 yearsOsceola County: 36.3 yearsPalm Beach County: 44.4 yearsPasco County: 44.9 yearsPinellas County: 47.7 yearsPolk County: 40.9 yearsPutnam County: 45.7 yearsSt. Johns County: 43.3 yearsSt. Lucie County: 44.7 yearsSanta Rosa County: 39.7 yearsSarasota County: 55.1 yearsSeminole County: 39 yearsSumter County: 66.3 yearsSuwannee County: 42.9 yearsTaylor County: 42.3 yearsUnion County: 41.2 yearsVolusia County: 47.1 yearsWakulla County: 41.1 yearsWalton County: 43.7 yearsWashington County: 42.4 years
  • Under 39
  • 39 to 41
  • 41 to 43
  • 43 to 46
  • 46 to 48
  • 48 and over
years, 2015. 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, 2015

Sumter County: 66.3 yearsSumter County66.3Charlotte County: 58.2 yearsCharlotte County58.2Citrus County: 56.5 yearsCitrus County56.5Sarasota County: 55.1 yearsSarasota County55.1Highlands County: 53.2 yearsHighlands County53.2Indian River County: 51.9 yearsIndian River County51.9Martin County: 51.5 yearsMartin County51.5Flagler County: 51.3 yearsFlagler County51.3Collier County: 49.9 yearsCollier County49.9Hernando County: 49.5 yearsHernando County49.5Marion County: 49.3 yearsMarion County49.3Monroe County: 48.1 yearsMonroe County48.1Lee County: 47.8 yearsLee County47.8Pinellas County: 47.7 yearsPinellas County47.7Brevard County: 47.6 yearsBrevard County47.6Levy County: 47.5 yearsLevy County47.5Jefferson County: 47.4 yearsJefferson County47.4Dixie County: 47.3 yearsDixie County47.3Manatee County: 47.3 yearsManatee County47.3Lake County: 47.1 yearsLake County47.1Volusia County: 47.1 yearsVolusia County47.1Franklin County: 46.2 yearsFranklin County46.2Putnam County: 45.7 yearsPutnam County45.7Nassau County: 45.5 yearsNassau County45.5Pasco County: 44.9 yearsPasco County44.9St. Lucie County: 44.7 yearsSt. Lucie County44.7Palm Beach County: 44.4 yearsPalm Beach County44.4Glades County: 44.2 yearsGlades County44.2Gulf County: 44.1 yearsGulf County44.1Walton County: 43.7 yearsWalton County43.7Madison County: 43.4 yearsMadison County43.4St. Johns County: 43.3 yearsSt. Johns County43.3Gilchrist County: 43.2 yearsGilchrist County43.2Holmes County: 43.1 yearsHolmes County43.1Suwannee County: 42.9 yearsSuwannee County42.9Washington County: 42.4 yearsWashington County42.4Taylor County: 42.3 yearsTaylor County42.3Jackson County: 41.9 yearsJackson County41.9Columbia County: 41.7 yearsColumbia County41.7Bradford County: 41.6 yearsBradford County41.6Sumter County: 66.3 yearsSumter County66.3Charlotte County: 58.2 yearsCharlotte County58.2Citrus County: 56.5 yearsCitrus County56.5Sarasota County: 55.1 yearsSarasota County55.1Highlands County: 53.2 yearsHighlands County53.2Indian River County: 51.9 yearsIndian River County51.9Martin County: 51.5 yearsMartin County51.5Flagler County: 51.3 yearsFlagler County51.3Collier County: 49.9 yearsCollier County49.9Hernando County: 49.5 yearsHernando County49.5Marion County: 49.3 yearsMarion County49.3Monroe County: 48.1 yearsMonroe County48.1Lee County: 47.8 yearsLee County47.8Pinellas County: 47.7 yearsPinellas County47.7Brevard County: 47.6 yearsBrevard County47.6Levy County: 47.5 yearsLevy County47.5Jefferson County: 47.4 yearsJefferson County47.4Dixie County: 47.3 yearsDixie County47.3Manatee County: 47.3 yearsManatee County47.3Lake County: 47.1 yearsLake County47.1Volusia County: 47.1 yearsVolusia County47.1Franklin County: 46.2 yearsFranklin County46.2Putnam County: 45.7 yearsPutnam County45.7Nassau County: 45.5 yearsNassau County45.5Pasco County: 44.9 yearsPasco County44.9St. Lucie County: 44.7 yearsSt. Lucie County44.7Palm Beach County: 44.4 yearsPalm Beach County44.4Glades County: 44.2 yearsGlades County44.2Gulf County: 44.1 yearsGulf County44.1Walton County: 43.7 yearsWalton County43.7Madison County: 43.4 yearsMadison County43.4St. Johns County: 43.3 yearsSt. Johns County43.3Gilchrist County: 43.2 yearsGilchrist County43.2Holmes County: 43.1 yearsHolmes County43.1Suwannee County: 42.9 yearsSuwannee County42.9Washington County: 42.4 yearsWashington County42.4Taylor County: 42.3 yearsTaylor County42.3Jackson County: 41.9 yearsJackson County41.9Columbia County: 41.7 yearsColumbia County41.7Bradford County: 41.6 yearsBradford County41.6
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

RankCounties2015
years		Change on 2014
1Sumter County66.3+0.6
2Charlotte County58.2+0.4
3Citrus County56.5+0.3
4Sarasota County55.1+0.5
5Highlands County53.2+0.3
6Indian River County51.9+0.5
7Martin County51.5+0.3
8Flagler County51.3+0.7
9Collier County49.9+0.7
10Hernando County49.5+0.1
11Marion County49.3+0.2
12Monroe County48.1+0.3
13Lee County47.8+0.3
14Pinellas County47.7+0.2
15Brevard County47.6+0.2
16Levy County47.5+0.3
17Jefferson County47.4+0.3
18Dixie County47.30
18Manatee County47.3+0.3
20Lake County47.10
20Volusia County47.1+0.2
22Franklin County46.2+1.2
23Putnam County45.7+0.5
24Nassau County45.5+0.4
25Pasco County44.9+0.2
26St. Lucie County44.7+0.4
27Palm Beach County44.4+0.2
28Glades County44.2+0.2
29Gulf County44.1+0.4
30Walton County43.7+0.3
31Madison County43.4+0.5
32St. Johns County43.3+0.2
33Gilchrist County43.2+0.1
34Holmes County43.1+0.7
35Suwannee County42.9+0.5
36Washington County42.4+0.2
37Taylor County42.3+0.2
38Jackson County41.9+0.2
39Columbia County41.7+0.3
40Bradford County41.60
41Gadsden County41.4+0.3
42Calhoun County41.3+0.3
43DeSoto County41.2+0.7
43Union County41.2+0.4
45Wakulla County41.1+0.3
46Hamilton County41+0.1
47Okeechobee County40.9+0.5
47Polk County40.9+0.1
49Broward County40.3+0.2
50Lafayette County39.9+0.9
51Santa Rosa County39.7+0.1
52Bay County39.6-0.2
52Miami-Dade County39.6+0.2
54Clay County39.3+0.1
55Seminole County39+0.1
56Liberty County38.5-0.1
57Escambia County38.3+0.3
58Baker County37.9+0.3
59Okaloosa County37.10
60Duval County36.7+0.1
60Hillsborough County36.70
62Osceola County36.3+0.3
63Hardee County35.3+0.5
64Orange County34.4+0.1
65Hendry County34.2+0.3
66Alachua County31.2+0.2
66Leon County31.2+0.4

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 Florida by median age on 1 July (US county estimates), 2015) [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 Florida by median age on 1 July (US county estimates), 2015. 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/florida-counties?period=2015. 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 Florida by median age on 1 July (US county estimates), 2015. 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/florida-counties?period=2015.

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 Florida by median age on 1 July (US county estimates), 2015 [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/florida-counties?period=2015 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_florida_by_2015,
  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 Florida by median age on 1 July (US county estimates), 2015}},
  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/florida-counties?period=2015. 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 Florida by median age on 1 July (US county estimates), 2015
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/florida-counties?period=2015
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/median-age-july-1-us-counties/florida-counties?period=2015.
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)?

Sumter County, with 66.3 years in 2015, according to the U.S. Census Bureau.

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

Leon County, with 31.2 years in 2015.

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.

Median age on 1 July (US county estimates): other rankings

Counties in Florida: more rankings