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 2018, at 67.8 years. Alachua County had the lowest, at 31.7 years. The median was 43.7 years. Source: the U.S. Census Bureau.

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Highest67.8Sumter County
Lowest31.7Alachua County
Median43.767 counties

Map of counties, 2018

Alachua County: 31.7 yearsBaker County: 38.3 yearsBay County: 40.3 yearsBradford County: 41.5 yearsBrevard County: 48.1 yearsBroward County: 40.8 yearsCalhoun County: 41.8 yearsCharlotte County: 59.5 yearsCitrus County: 57.3 yearsClay County: 39.9 yearsCollier County: 51.8 yearsColumbia County: 42.3 yearsDeSoto County: 41.9 yearsDixie County: 47.4 yearsDuval County: 37.3 yearsEscambia County: 39.3 yearsFlagler County: 53.1 yearsFranklin County: 50.5 yearsGadsden County: 42.5 yearsGilchrist County: 43.8 yearsGlades County: 44.9 yearsGulf County: 45.3 yearsHamilton County: 42.3 yearsHardee County: 36.3 yearsHendry County: 34.9 yearsHernando County: 49.5 yearsHighlands County: 54 yearsHillsborough County: 37.2 yearsHolmes County: 43.2 yearsIndian River County: 53.9 yearsJackson County: 42.2 yearsJefferson County: 48.8 yearsLafayette County: 41.7 yearsLake County: 47.9 yearsLee County: 48.9 yearsLeon County: 32.4 yearsLevy County: 47.9 yearsLiberty County: 39.3 yearsMadison County: 44.8 yearsManatee County: 48.5 yearsMarion County: 49.9 yearsMartin County: 52.5 yearsMiami-Dade County: 40.5 yearsMonroe County: 49.1 yearsNassau County: 46.4 yearsOkaloosa County: 37.8 yearsOkeechobee County: 41.6 yearsOrange County: 35 yearsOsceola County: 36.9 yearsPalm Beach County: 44.9 yearsPasco County: 45 yearsPinellas County: 48.6 yearsPolk County: 40.8 yearsPutnam County: 46.5 yearsSt. Johns County: 43.7 yearsSt. Lucie County: 45.6 yearsSanta Rosa County: 40.1 yearsSarasota County: 56.7 yearsSeminole County: 39 yearsSumter County: 67.8 yearsSuwannee County: 44.3 yearsTaylor County: 43.4 yearsUnion County: 41.8 yearsVolusia County: 47.6 yearsWakulla County: 42.3 yearsWalton County: 44.4 yearsWashington County: 43.3 years
  • Under 39
  • 39 to 42
  • 42 to 44
  • 44 to 47
  • 47 to 50
  • 50 and over
years, 2018. 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, 2018

Sumter County: 67.8 yearsSumter County67.8Charlotte County: 59.5 yearsCharlotte County59.5Citrus County: 57.3 yearsCitrus County57.3Sarasota County: 56.7 yearsSarasota County56.7Highlands County: 54 yearsHighlands County54Indian River County: 53.9 yearsIndian River County53.9Flagler County: 53.1 yearsFlagler County53.1Martin County: 52.5 yearsMartin County52.5Collier County: 51.8 yearsCollier County51.8Franklin County: 50.5 yearsFranklin County50.5Marion County: 49.9 yearsMarion County49.9Hernando County: 49.5 yearsHernando County49.5Monroe County: 49.1 yearsMonroe County49.1Lee County: 48.9 yearsLee County48.9Jefferson County: 48.8 yearsJefferson County48.8Pinellas County: 48.6 yearsPinellas County48.6Manatee County: 48.5 yearsManatee County48.5Brevard County: 48.1 yearsBrevard County48.1Lake County: 47.9 yearsLake County47.9Levy County: 47.9 yearsLevy County47.9Volusia County: 47.6 yearsVolusia County47.6Dixie County: 47.4 yearsDixie County47.4Putnam County: 46.5 yearsPutnam County46.5Nassau County: 46.4 yearsNassau County46.4St. Lucie County: 45.6 yearsSt. Lucie County45.6Gulf County: 45.3 yearsGulf County45.3Pasco County: 45 yearsPasco County45Glades County: 44.9 yearsGlades County44.9Palm Beach County: 44.9 yearsPalm Beach County44.9Madison County: 44.8 yearsMadison County44.8Walton County: 44.4 yearsWalton County44.4Suwannee County: 44.3 yearsSuwannee County44.3Gilchrist County: 43.8 yearsGilchrist County43.8St. Johns County: 43.7 yearsSt. Johns County43.7Taylor County: 43.4 yearsTaylor County43.4Washington County: 43.3 yearsWashington County43.3Holmes County: 43.2 yearsHolmes County43.2Gadsden County: 42.5 yearsGadsden County42.5Columbia County: 42.3 yearsColumbia County42.3Hamilton County: 42.3 yearsHamilton County42.3Sumter County: 67.8 yearsSumter County67.8Charlotte County: 59.5 yearsCharlotte County59.5Citrus County: 57.3 yearsCitrus County57.3Sarasota County: 56.7 yearsSarasota County56.7Highlands County: 54 yearsHighlands County54Indian River County: 53.9 yearsIndian River County53.9Flagler County: 53.1 yearsFlagler County53.1Martin County: 52.5 yearsMartin County52.5Collier County: 51.8 yearsCollier County51.8Franklin County: 50.5 yearsFranklin County50.5Marion County: 49.9 yearsMarion County49.9Hernando County: 49.5 yearsHernando County49.5Monroe County: 49.1 yearsMonroe County49.1Lee County: 48.9 yearsLee County48.9Jefferson County: 48.8 yearsJefferson County48.8Pinellas County: 48.6 yearsPinellas County48.6Manatee County: 48.5 yearsManatee County48.5Brevard County: 48.1 yearsBrevard County48.1Lake County: 47.9 yearsLake County47.9Levy County: 47.9 yearsLevy County47.9Volusia County: 47.6 yearsVolusia County47.6Dixie County: 47.4 yearsDixie County47.4Putnam County: 46.5 yearsPutnam County46.5Nassau County: 46.4 yearsNassau County46.4St. Lucie County: 45.6 yearsSt. Lucie County45.6Gulf County: 45.3 yearsGulf County45.3Pasco County: 45 yearsPasco County45Glades County: 44.9 yearsGlades County44.9Palm Beach County: 44.9 yearsPalm Beach County44.9Madison County: 44.8 yearsMadison County44.8Walton County: 44.4 yearsWalton County44.4Suwannee County: 44.3 yearsSuwannee County44.3Gilchrist County: 43.8 yearsGilchrist County43.8St. Johns County: 43.7 yearsSt. Johns County43.7Taylor County: 43.4 yearsTaylor County43.4Washington County: 43.3 yearsWashington County43.3Holmes County: 43.2 yearsHolmes County43.2Gadsden County: 42.5 yearsGadsden County42.5Columbia County: 42.3 yearsColumbia County42.3Hamilton County: 42.3 yearsHamilton County42.3
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

RankCounties2018
years		Change on 2017
1Sumter County67.8+0.4
2Charlotte County59.5+0.4
3Citrus County57.3+0.2
4Sarasota County56.7+0.5
5Highlands County54+0.2
6Indian River County53.9+0.6
7Flagler County53.1+0.6
8Martin County52.5+0.2
9Collier County51.8+0.7
10Franklin County50.5+1.9
11Marion County49.9+0.2
12Hernando County49.50
13Monroe County49.1+0.4
14Lee County48.9+0.4
15Jefferson County48.8+0.5
16Pinellas County48.6+0.4
17Manatee County48.5+0.5
18Brevard County48.1+0.2
19Lake County47.9+0.3
19Levy County47.9+0.2
21Volusia County47.6+0.2
22Dixie County47.40
23Putnam County46.5+0.3
24Nassau County46.4+0.2
25St. Lucie County45.6+0.2
26Gulf County45.3+0.5
27Pasco County45-0.1
28Glades County44.9+0.3
28Palm Beach County44.9+0.2
30Madison County44.8+0.5
31Walton County44.4+0.2
32Suwannee County44.3+0.6
33Gilchrist County43.80
34St. Johns County43.7+0.1
35Taylor County43.4+0.4
36Washington County43.3+0.1
37Holmes County43.20
38Gadsden County42.5+0.2
39Columbia County42.3+0.2
39Hamilton County42.3+0.5
39Wakulla County42.3+0.5
42Jackson County42.2+0.2
43DeSoto County41.9+0.3
44Calhoun County41.80
44Union County41.80
46Lafayette County41.7+0.4
47Okeechobee County41.6+0.2
48Bradford County41.5-0.1
49Broward County40.8+0.2
49Polk County40.8-0.1
51Miami-Dade County40.5+0.4
52Bay County40.3+0.3
53Santa Rosa County40.10
54Clay County39.9+0.3
55Escambia County39.3+0.4
55Liberty County39.30
57Seminole County390
58Baker County38.3+0.3
59Okaloosa County37.8+0.2
60Duval County37.3+0.2
61Hillsborough County37.2+0.2
62Osceola County36.9+0.2
63Hardee County36.3+0.2
64Orange County35+0.2
65Hendry County34.9+0.2
66Leon County32.4+0.4
67Alachua County31.7+0.2

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), 2018) [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), 2018. 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=2018. 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), 2018. 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=2018.

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), 2018 [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=2018 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_florida_by_2018,
  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), 2018}},
  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=2018. 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), 2018
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=2018
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/median-age-july-1-us-counties/florida-counties?period=2018.
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 67.8 years in 2018, according to the U.S. Census Bureau.

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

Alachua County, with 31.7 years in 2018.

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