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

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

Dolores County had the highest school enrolment, children aged 3 and 4 of 63 counties in 2024, at 100%. Hinsdale County had the lowest, at 0%. The median was 51.6% and the figure for Colorado was 48.7%. Source: the U.S. Census Bureau.

Highest100Dolores County
Lowest0Hinsdale County
Median51.663 counties
Colorado48.7History

Top 40 counties, 2024

Dolores County: 100 %Dolores County100San Juan County: 100 %San Juan County100Huerfano County: 91.5 %Huerfano County91.5Routt County: 88.2 %Routt County88.2Pitkin County: 86.6 %Pitkin County86.6Costilla County: 83.5 %Costilla County83.5Custer County: 75 %Custer County75Boulder County: 72.2 %Boulder County72.2Baca County: 70.8 %Baca County70.8Lake County: 68.7 %Lake County68.7Logan County: 68.6 %Logan County68.6Saguache County: 67.6 %Saguache County67.6Rio Grande County: 65.9 %Rio Grande County65.9Gilpin County: 64.8 %Gilpin County64.8Clear Creek County: 62.8 %Clear Creek County62.8Grand County: 62.5 %Grand County62.5Archuleta County: 62.2 %Archuleta County62.2Douglas County: 61.8 %Douglas County61.8Ouray County: 60.4 %Ouray County60.4Summit County: 60.3 %Summit County60.3Jefferson County: 58 %Jefferson County58Gunnison County: 57.6 %Gunnison County57.6Chaffee County: 57.6 %Chaffee County57.6Otero County: 56.6 %Otero County56.6Eagle County: 56.4 %Eagle County56.4Fremont County: 53.7 %Fremont County53.7La Plata County: 53.7 %La Plata County53.7Cheyenne County: 53.3 %Cheyenne County53.3Delta County: 52.9 %Delta County52.9Park County: 52.6 %Park County52.6Denver County: 52.6 %Denver County52.6Sedgwick County: 51.6 %Sedgwick County51.6Larimer County: 51.3 %Larimer County51.3Arapahoe County: 48.1 %Arapahoe County48.1Prowers County: 46.7 %Prowers County46.7Montezuma County: 46.3 %Montezuma County46.3Broomfield County: 45.2 %Broomfield County45.2Kit Carson County: 45.1 %Kit Carson County45.1Mesa County: 44.1 %Mesa County44.1Garfield County: 42.9 %Garfield County42.9
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2024 (%)Change on 2023
1Dolores County1000 pts
1San Juan County1000 pts
3Huerfano County91.5+24.6 pts
4Routt County88.2+1.1 pts
5Pitkin County86.6+11.1 pts
6Costilla County83.5+28.2 pts
7Custer County75+16.7 pts
8Boulder County72.2-1.5 pts
9Baca County70.8+1.8 pts
10Lake County68.7-5 pts
11Logan County68.6+2.3 pts
12Saguache County67.6+6.3 pts
13Rio Grande County65.9+14.8 pts
14Gilpin County64.8-28.2 pts
15Clear Creek County62.8+9.3 pts
16Grand County62.5+20.9 pts
17Archuleta County62.2+18.7 pts
18Douglas County61.8+1.4 pts
19Ouray County60.4+8.7 pts
20Summit County60.3+30.6 pts
21Jefferson County58+1.3 pts
22Gunnison County57.6-16.1 pts
23Chaffee County57.6-3 pts
24Otero County56.6+3.3 pts
25Eagle County56.4+7 pts
26Fremont County53.7+16.7 pts
26La Plata County53.7-1.9 pts
28Cheyenne County53.3+0.9 pts
29Delta County52.9+7.7 pts
30Park County52.6+25.9 pts
31Denver County52.6-2.5 pts
32Sedgwick County51.6-8.7 pts
33Larimer County51.3+0.1 pts
34Arapahoe County48.1-1.4 pts
35Prowers County46.7-3.9 pts
36Montezuma County46.3-10.3 pts
37Broomfield County45.2+2.1 pts
38Kit Carson County45.1+1.6 pts
39Mesa County44.1-2.6 pts
40Garfield County42.9-1.6 pts
41Kiowa County42.9-5 pts
42Weld County42.8-2.7 pts
43Las Animas County42.4-1 pts
44Montrose County41.6+9.2 pts
45El Paso County41-0.3 pts
46Adams County39.1-1.9 pts
47Washington County38.4+0.1 pts
48Phillips County38.3+9.3 pts
49Bent County38.2-9.2 pts
50Jackson County37.9+12.9 pts
51Conejos County37.8+12 pts
52Moffat County36.8-3.7 pts
53Lincoln County36.1-10.8 pts
54Elbert County35.2-1.7 pts
55Alamosa County32.5+0.5 pts
56Pueblo County32-0.7 pts
57Yuma County31.2+7.3 pts
58Morgan County30.8-6.7 pts
59Teller County29.2-3.6 pts
60Rio Blanco County24.8+12.4 pts
61San Miguel County24.5+3.4 pts
62Crowley County14-32.8 pts
63Hinsdale County0n/a

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. 1 counties with data in other periods have no value for 2024 and are left out rather than filled from another source. 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 Colorado 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 Colorado 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/colorado-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 Colorado 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/colorado-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 Colorado 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/colorado-counties (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_colorado_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 Colorado 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/colorado-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 Colorado 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/colorado-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/preschool-enrollment-ages-3-4/colorado-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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Questions

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

Dolores County, with 100% in 2024, according to the U.S. Census Bureau.

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

Hinsdale County, with 0% 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. 1 counties have no value for 2024 and are not ranked.

School enrolment, children aged 3 and 4: other rankings

Counties in Colorado: more rankings