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

Counties in Connecticut by school enrolment, children aged 3 and 4, 2024

Lower Connecticut River Valley Planning Region had the highest school enrolment, children aged 3 and 4 of 9 counties in 2024, at 70.3%. Northeastern Connecticut Planning Region had the lowest, at 50.3%. The median was 58% and the figure for Connecticut was 59.7%. Source: the U.S. Census Bureau.

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Highest70.3Lower Connecticut River Valley Planning Region
Lowest50.3Northeastern Connecticut Planning Region
Median589 counties
Connecticut59.7History

Map of counties, 2024

Capitol Planning Region: 58 %Greater Bridgeport Planning Region: 61.6 %Lower Connecticut River Valley Planning Region: 70.3 %Naugatuck Valley Planning Region: 55.3 %Northeastern Connecticut Planning Region: 50.3 %Northwest Hills Planning Region: 67.1 %South Central Connecticut Planning Region: 55.8 %Southeastern Connecticut Planning Region: 50.8 %Western Connecticut Planning Region: 68.8 %
  • Under 53
  • 53 to 56
  • 56 to 61
  • 61 to 68
  • 68 and over
%, 2024. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2024

Lower Connecticut River Valley Planning Region: 70.3 %Lower Connecticut River Valley Pl…70.3Western Connecticut Planning Region: 68.8 %Western Connecticut Planning Regi…68.8Northwest Hills Planning Region: 67.1 %Northwest Hills Planning Region67.1Greater Bridgeport Planning Region: 61.6 %Greater Bridgeport Planning Region61.6Capitol Planning Region: 58 %Capitol Planning Region58South Central Connecticut Planning Region: 55.8 %South Central Connecticut Plannin…55.8Naugatuck Valley Planning Region: 55.3 %Naugatuck Valley Planning Region55.3Southeastern Connecticut Planning Region: 50.8 %Southeastern Connecticut Planning…50.8Northeastern Connecticut Planning Region: 50.3 %Northeastern Connecticut Planning…50.3Lower Connecticut River Valley Planning Region: 70.3 %Lower Connecticut River Valley Planning Region70.3Western Connecticut Planning Region: 68.8 %Western Connecticut Planning Region68.8Northwest Hills Planning Region: 67.1 %Northwest Hills Planning Region67.1Greater Bridgeport Planning Region: 61.6 %Greater Bridgeport Planning Region61.6Capitol Planning Region: 58 %Capitol Planning Region58South Central Connecticut Planning Region: 55.8 %South Central Connecticut Planning Region55.8Naugatuck Valley Planning Region: 55.3 %Naugatuck Valley Planning Region55.3Southeastern Connecticut Planning Region: 50.8 %Southeastern Connecticut Planning Region50.8Northeastern Connecticut Planning Region: 50.3 %Northeastern Connecticut Planning Region50.3
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2024 (%)Change on 2023
1Lower Connecticut River Valley Planning Region70.3-4 pts
2Western Connecticut Planning Region68.8-3 pts
3Northwest Hills Planning Region67.1+5.4 pts
4Greater Bridgeport Planning Region61.6+1.1 pts
5Capitol Planning Region58+0.3 pts
6South Central Connecticut Planning Region55.8+1.3 pts
7Naugatuck Valley Planning Region55.3+0.3 pts
8Southeastern Connecticut Planning Region50.8-4.7 pts
9Northeastern Connecticut Planning Region50.3+3.3 pts

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/2024/table-based-SF/data/5YRData/acsdt5y2024-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 Connecticut by school enrolment, children aged 3 and 4, 2024) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-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 Connecticut by school enrolment, children aged 3 and 4, 2024. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b14003.dat. Invokely, https://invokely.ai/rankings/preschool-enrollment-ages-3-4/connecticut-counties. 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 Connecticut by school enrolment, children aged 3 and 4, 2024. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b14003.dat. Also distributed by Invokely, https://invokely.ai/rankings/preschool-enrollment-ages-3-4/connecticut-counties.

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 Connecticut by school enrolment, children aged 3 and 4, 2024 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b14003.dat, via Invokely: https://invokely.ai/rankings/preschool-enrollment-ages-3-4/connecticut-counties (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_connecticut_by_2024,
  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 Connecticut by school enrolment, children aged 3 and 4, 2024}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b14003.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/preschool-enrollment-ages-3-4/connecticut-counties. 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/2024/table-based-SF/data/5YRData/acsdt5y2024-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 Connecticut by school enrolment, children aged 3 and 4, 2024
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b14003.dat
L2  - https://invokely.ai/rankings/preschool-enrollment-ages-3-4/connecticut-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/preschool-enrollment-ages-3-4/connecticut-counties.
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/2024/table-based-SF/data/5YRData/acsdt5y2024-b14003.dat. Retrieved 2026-10-12.
ER  -
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Rank Counties in Connecticut by school enrolment, children aged 3 and 4 using official data, and cite the source.
rank_places {"indicator":"preschool_enrolment_rate_3_4","level":"province","within":"Connecticut","limit":10}
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Questions

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

Lower Connecticut River Valley Planning Region, with 70.3% in 2024, according to the U.S. Census Bureau.

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

Northeastern Connecticut Planning Region, with 50.3% in 2024.

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 Connecticut: more rankings