Data / Rankings / School enrolment, children aged 3 and 4 / Counties in Maryland

Counties in Maryland by school enrolment, children aged 3 and 4

Kent County had the highest school enrolment, children aged 3 and 4 of 24 counties in 2021, at 66.9%. Garrett County had the lowest, at 29.4%. The median was 44.5% and the figure for Maryland was 46.4%. Source: the U.S. Census Bureau.

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Highest66.9Kent County
Lowest29.4Garrett County
Median44.524 counties
Maryland46.4History

Map of counties, 2021

Allegany County: 45 %Anne Arundel County: 52.5 %Baltimore County: 44.8 %Calvert County: 37.4 %Caroline County: 38 %Carroll County: 48.4 %Cecil County: 41.3 %Charles County: 42.6 %Dorchester County: 35 %Frederick County: 46 %Garrett County: 29.4 %Harford County: 45.2 %Howard County: 51 %Kent County: 66.9 %Montgomery County: 52.1 %Prince George's County: 40.2 %Queen Anne's County: 40.8 %St. Mary's County: 44.3 %Somerset County: 44.8 %Talbot County: 58.1 %Washington County: 36.9 %Wicomico County: 40.6 %Worcester County: 44.1 %Baltimore city: 49.7 %
  • Under 39
  • 39 to 43
  • 43 to 45
  • 45 to 50
  • 50 and over
%, 2021. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2021

Kent County: 66.9 %Kent County66.9Talbot County: 58.1 %Talbot County58.1Anne Arundel County: 52.5 %Anne Arundel County52.5Montgomery County: 52.1 %Montgomery County52.1Howard County: 51 %Howard County51Baltimore city: 49.7 %Baltimore city49.7Carroll County: 48.4 %Carroll County48.4Frederick County: 46 %Frederick County46Harford County: 45.2 %Harford County45.2Allegany County: 45 %Allegany County45Somerset County: 44.8 %Somerset County44.8Baltimore County: 44.8 %Baltimore County44.8St. Mary's County: 44.3 %St. Mary's County44.3Worcester County: 44.1 %Worcester County44.1Charles County: 42.6 %Charles County42.6Cecil County: 41.3 %Cecil County41.3Queen Anne's County: 40.8 %Queen Anne's County40.8Wicomico County: 40.6 %Wicomico County40.6Prince George's County: 40.2 %Prince George's County40.2Caroline County: 38 %Caroline County38Calvert County: 37.4 %Calvert County37.4Washington County: 36.9 %Washington County36.9Dorchester County: 35 %Dorchester County35Garrett County: 29.4 %Garrett County29.4Kent County: 66.9 %Kent County66.9Talbot County: 58.1 %Talbot County58.1Anne Arundel County: 52.5 %Anne Arundel County52.5Montgomery County: 52.1 %Montgomery County52.1Howard County: 51 %Howard County51Baltimore city: 49.7 %Baltimore city49.7Carroll County: 48.4 %Carroll County48.4Frederick County: 46 %Frederick County46Harford County: 45.2 %Harford County45.2Allegany County: 45 %Allegany County45Somerset County: 44.8 %Somerset County44.8Baltimore County: 44.8 %Baltimore County44.8St. Mary's County: 44.3 %St. Mary's County44.3Worcester County: 44.1 %Worcester County44.1Charles County: 42.6 %Charles County42.6Cecil County: 41.3 %Cecil County41.3Queen Anne's County: 40.8 %Queen Anne's County40.8Wicomico County: 40.6 %Wicomico County40.6Prince George's County: 40.2 %Prince George's County40.2Caroline County: 38 %Caroline County38Calvert County: 37.4 %Calvert County37.4Washington County: 36.9 %Washington County36.9Dorchester County: 35 %Dorchester County35Garrett County: 29.4 %Garrett County29.4
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2021 (%)
1Kent County66.9
2Talbot County58.1
3Anne Arundel County52.5
4Montgomery County52.1
5Howard County51
6Baltimore city49.7
7Carroll County48.4
8Frederick County46
9Harford County45.2
10Allegany County45
11Somerset County44.8
12Baltimore County44.8
13St. Mary's County44.3
14Worcester County44.1
15Charles County42.6
16Cecil County41.3
17Queen Anne's County40.8
18Wicomico County40.6
19Prince George's County40.2
20Caroline County38
21Calvert County37.4
22Washington County36.9
23Dorchester County35
24Garrett County29.4

Other periods

About this ranking

Children aged 3 and 4 enrolled in public or private school, including nursery school and preschool, at any time in the three months before the interview, as a percentage of all children aged 3 and 4. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

Reported by households, so it includes private nursery schools. Small counties have only a few dozen children in the sample, and their rates can swing widely between periods.

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. American Community Survey 5-year estimates, table B14003: children aged 3 and 4 enrolled in public or private school as a percentage of all children aged 3 and 4, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b14003.dat. 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). American Community Survey 5-year estimates, table B14003: children aged 3 and 4 enrolled in public or private school as a percentage of all children aged 3 and 4, calculated with stored inputs (Counties in Maryland by school enrolment, children aged 3 and 4, 2021) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b14003.dat

MLA 9

American Community Survey 5-year estimates, table B14003: children aged 3 and 4 enrolled in public or private school as a percentage of all children aged 3 and 4, calculated with stored inputs, Counties in Maryland by school enrolment, children aged 3 and 4, 2021. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b14003.dat. Invokely, https://invokely.ai/rankings/preschool-enrollment-ages-3-4/maryland-counties?period=2021. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B14003: children aged 3 and 4 enrolled in public or private school as a percentage of all children aged 3 and 4, calculated with stored inputs. Counties in Maryland by school enrolment, children aged 3 and 4, 2021. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b14003.dat. Also distributed by Invokely, https://invokely.ai/rankings/preschool-enrollment-ages-3-4/maryland-counties?period=2021.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B14003: children aged 3 and 4 enrolled in public or private school as a percentage of all children aged 3 and 4, calculated with stored inputs, Counties in Maryland by school enrolment, children aged 3 and 4, 2021 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b14003.dat, via Invokely: https://invokely.ai/rankings/preschool-enrollment-ages-3-4/maryland-counties?period=2021 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_maryland_by_2021,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B14003: children aged 3 and 4 enrolled in public or private school as a percentage of all children aged 3 and 4, calculated with stored inputs: Counties in Maryland by school enrolment, children aged 3 and 4, 2021}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b14003.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/preschool-enrollment-ages-3-4/maryland-counties?period=2021. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B14003: children aged 3 and 4 enrolled in public or private school as a percentage of all children aged 3 and 4, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary\_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b14003.dat. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - American Community Survey 5-year estimates, table B14003: children aged 3 and 4 enrolled in public or private school as a percentage of all children aged 3 and 4, calculated with stored inputs: Counties in Maryland by school enrolment, children aged 3 and 4, 2021
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b14003.dat
L2  - https://invokely.ai/rankings/preschool-enrollment-ages-3-4/maryland-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/preschool-enrollment-ages-3-4/maryland-counties?period=2021.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B14003: children aged 3 and 4 enrolled in public or private school as a percentage of all children aged 3 and 4, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b14003.dat. Retrieved 2026-10-12.
ER  -
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Questions

Which county has the highest school enrolment, children aged 3 and 4?

Kent County, with 66.9% in 2021, according to the U.S. Census Bureau.

Which county has the lowest school enrolment, children aged 3 and 4?

Garrett County, with 29.4% in 2021.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, American Community Survey 5-year estimates, table B14003: children aged 3 and 4 enrolled in public or private school as a percentage of all children aged 3 and 4, calculated with stored inputs. Retrieved 2026-10-12.

School enrolment, children aged 3 and 4: other rankings

Counties in Maryland: more rankings