Data / Population under 18 / Baltimore city

Population under 18 in Baltimore city

Population under 18 in Baltimore city was 19.9% in 2025, according to the U.S. Census Bureau. That is unchanged from 2024. That is the 18th highest of 24 counties in 2025.

202519.9%
Change on 2024-0 pts
Rank18th of 24Counties in Maryland ranked
Series high21.42010
Series low19.62019

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 Baltimore city, 2010 to 2025

19.52020.52121.52010201320162019202220252010: 21.4 %2011: 21.1 %2012: 21 %2013: 20.9 %2014: 20.9 %2015: 20.7 %2016: 20.5 %2017: 20.3 %2018: 19.9 %2019: 19.6 %2020: 19.9 %2021: 19.8 %2022: 19.9 %2023: 19.9 %2024: 20 %2025: 19.9 %19.52020.52121.52010201620252010: 21.4 %2011: 21.1 %2012: 21 %2013: 20.9 %2014: 20.9 %2015: 20.7 %2016: 20.5 %2017: 20.3 %2018: 19.9 %2019: 19.6 %2020: 19.9 %2021: 19.8 %2022: 19.9 %2023: 19.9 %2024: 20 %2025: 19.9 %
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12, published 2026-06-25.
All 16 values
Period%
202519.9
202420
202319.9
202219.9
202119.8
202019.9
201919.6
201819.9
201720.3
201620.5
201520.7
201420.9
201320.9
201221
201121.1
201021.4

Compared with Maryland and United States

Place2025
Baltimore city19.9
Maryland21.3
United States21.1

Baltimore city compared with nearby places

Allegany County: 18.1 %Anne Arundel County: 21.6 %Baltimore County: 21 %Calvert County: 22.5 %Caroline County: 23.8 %Carroll County: 21.6 %Cecil County: 22 %Charles County: 23 %Dorchester County: 20.6 %Frederick County: 22.4 %Garrett County: 17.7 %Harford County: 21.5 %Howard County: 22.7 %Kent County: 14.8 %Montgomery County: 21.9 %Prince George's County: 20.9 %Queen Anne's County: 20.6 %St. Mary's County: 23.4 %Somerset County: 17.7 %Talbot County: 17.7 %Washington County: 21 %Wicomico County: 21.6 %Worcester County: 16.7 %Baltimore city: 19.9 %
  • Under 18
  • 18 to 21
  • 21 to 22
  • 22 and over
Population under 18, 2025, %. Baltimore city 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, Baltimore city, 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, Baltimore city, 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/baltimore-city-maryland. 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, Baltimore city, 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/baltimore-city-maryland.

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, Baltimore city, 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/baltimore-city-maryland (Accessed: 12 October 2026).

BibTeX
@misc{census_population_under_18_baltimore_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, Baltimore city, 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/baltimore-city-maryland. 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, Baltimore city, 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/baltimore-city-maryland
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/population-under-18/baltimore-city-maryland.
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 Baltimore city?

Population under 18 in Baltimore city was 19.9% in 2025, according to the U.S. Census Bureau. That is unchanged from 2024. That is the 18th highest of 24 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 Baltimore city?

21.4% in 2010, the highest value since 2010 in this series.

Related statistics for Baltimore city

All statistics for Baltimore city | Baltimore city in figures