Data / Population under 18 / Bay County

Population under 18 in Bay County

Population under 18 in Bay County was 20.7% in 2025, according to the U.S. Census Bureau. That is down 0.2 pts from 2024. That is the 18th highest of 67 counties in 2025.

202520.7%
Change on 2024-0.2 pts
Rank18th of 67Counties in Florida ranked
Series high21.92010
Series low20.42019

Next release: Friday, 25 June 2027, estimated by Invokely from past publication dates (low confidence), not announced by the publisher. Release calendar

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Population under 18 in Bay County, 2010 to 2025

2020.52121.5222010201320162019202220252010: 21.9 %2011: 21.6 %2012: 21.5 %2013: 21.5 %2014: 21.5 %2015: 21.5 %2016: 21.5 %2017: 21.4 %2018: 21.2 %2019: 20.4 %2020: 20.5 %2021: 20.6 %2022: 20.8 %2023: 20.8 %2024: 20.9 %2025: 20.7 %2020.52121.5222010201620252010: 21.9 %2011: 21.6 %2012: 21.5 %2013: 21.5 %2014: 21.5 %2015: 21.5 %2016: 21.5 %2017: 21.4 %2018: 21.2 %2019: 20.4 %2020: 20.5 %2021: 20.6 %2022: 20.8 %2023: 20.8 %2024: 20.9 %2025: 20.7 %
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12, published 2026-06-25.
All 16 values
Period%
202520.7
202420.9
202320.8
202220.8
202120.6
202020.5
201920.4
201821.2
201721.4
201621.5
201521.5
201421.5
201321.5
201221.5
201121.6
201021.9

Compared with Florida and United States

Place2025
Bay County20.7
Florida18.9
United States21.1

Bay County compared with nearby places

Alachua County: 17.5 %Baker County: 24.3 %Bay County: 20.7 %Bradford County: 20.7 %Brevard County: 17.5 %Broward County: 19.8 %Calhoun County: 19.5 %Charlotte County: 12 %Citrus County: 14.2 %Clay County: 22.5 %Collier County: 16.1 %Columbia County: 21.2 %DeSoto County: 19.3 %Dixie County: 17.4 %Duval County: 21.2 %Escambia County: 19.8 %Flagler County: 15.2 %Franklin County: 13.9 %Gadsden County: 21 %Gilchrist County: 21.3 %Glades County: 13.5 %Gulf County: 15.1 %Hamilton County: 19.3 %Hardee County: 24.7 %Hendry County: 24.9 %Hernando County: 18.3 %Highlands County: 16.7 %Hillsborough County: 20.9 %Holmes County: 20 %Indian River County: 15 %Jackson County: 19 %Jefferson County: 16.2 %Lafayette County: 17.1 %Lake County: 18 %Lee County: 17.3 %Leon County: 18.1 %Levy County: 19.2 %Liberty County: 18.4 %Madison County: 18.8 %Manatee County: 17.1 %Marion County: 18 %Martin County: 15.9 %Miami-Dade County: 19.2 %Monroe County: 14.5 %Nassau County: 18.8 %Okaloosa County: 22.2 %Okeechobee County: 22.5 %Orange County: 20.7 %Osceola County: 22.7 %Palm Beach County: 18.5 %Pasco County: 19.9 %Pinellas County: 14.3 %Polk County: 21.7 %Putnam County: 20.4 %St. Johns County: 21.6 %St. Lucie County: 19.5 %Santa Rosa County: 21.4 %Sarasota County: 13.8 %Seminole County: 19.9 %Sumter County: 7.6 %Suwannee County: 20.1 %Taylor County: 21.5 %Union County: 19.1 %Volusia County: 16.9 %Wakulla County: 20.3 %Walton County: 21.1 %Washington County: 19.5 %
  • Under 16
  • 16 to 18
  • 18 to 19
  • 19 to 20
  • 20 to 21
  • 21 and over
Population under 18, 2025, %. Bay County is outlined. Same source and period for every area shown. Source: U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

Rankings

Definition

Residents aged 0 to 17 as a percentage of total population on 1 July. United States: Census Bureau county population estimates by age; states and the nation are sums of their counties.

Uses the US age of majority. Not comparable with population_0_14_share, which stops at 14.

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How to cite

U.S. Census Bureau. Population Estimates Program, county population by age and sex: residents aged 0 to 17 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. 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: residents aged 0 to 17 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties (Population under 18, Bay County, 2010 to 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: residents aged 0 to 17 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties, Population under 18, Bay County, 2010 to 2025. U.S. Census Bureau, 25 June 2026, https://www.census.gov/programs-surveys/popest/data/data-sets.html. Invokely, https://invokely.ai/en/population-under-18/bay-county-florida. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Population Estimates Program, county population by age and sex: residents aged 0 to 17 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. Population under 18, Bay County, 2010 to 2025. Dataset. Accessed October 12, 2026. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Also distributed by Invokely, https://invokely.ai/en/population-under-18/bay-county-florida.

Harvard

U.S. Census Bureau (2026) Population Estimates Program, county population by age and sex: residents aged 0 to 17 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties, Population under 18, Bay County, 2010 to 2025 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/en/population-under-18/bay-county-florida (Accessed: 12 October 2026).

BibTeX
@misc{census_population_under_18_bay_2025,
  author = {{U.S. Census Bureau}},
  title = {{Population Estimates Program, county population by age and sex: residents aged 0 to 17 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties: Population under 18, Bay County, 2010 to 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/en/population-under-18/bay-county-florida. Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: residents aged 0 to 17 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. 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: residents aged 0 to 17 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties: Population under 18, Bay County, 2010 to 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/en/population-under-18/bay-county-florida
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/population-under-18/bay-county-florida.
N1  - Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: residents aged 0 to 17 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.
ER  -
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Questions

What is the population under 18 in Bay County?

Population under 18 in Bay County was 20.7% in 2025, according to the U.S. Census Bureau. That is down 0.2 pts from 2024. That is the 18th highest of 67 counties in 2025.

Where does this figure come from?

U.S. Census Bureau. Population Estimates Program, county population by age and sex: residents aged 0 to 17 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. Retrieved by Invokely on 2026-10-12.

What was the highest population under 18 in Bay County?

21.9% in 2010, the highest value since 2010 in this series.

Related statistics for Bay County

All statistics for Bay County | Bay County in figures