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

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

Dolores County had the highest school enrolment, children aged 3 and 4 of 62 counties in 2023, at 100%. Rio Blanco County had the lowest, at 12.4%. The median was 47.6% and the figure for Colorado was 49.1%. Source: the U.S. Census Bureau.

Highest100Dolores County
Lowest12.4Rio Blanco County
Median47.662 counties
Colorado49.1History

Top 40 counties, 2023

Dolores County: 100 %Dolores County100San Juan County: 100 %San Juan County100Gilpin County: 93 %Gilpin County93Routt County: 87 %Routt County87Pitkin County: 75.6 %Pitkin County75.6Lake County: 73.8 %Lake County73.8Gunnison County: 73.7 %Gunnison County73.7Boulder County: 73.7 %Boulder County73.7Baca County: 68.9 %Baca County68.9Huerfano County: 66.9 %Huerfano County66.9Logan County: 66.3 %Logan County66.3Saguache County: 61.3 %Saguache County61.3Chaffee County: 60.6 %Chaffee County60.6Douglas County: 60.5 %Douglas County60.5Sedgwick County: 60.3 %Sedgwick County60.3Custer County: 58.3 %Custer County58.3Jefferson County: 56.6 %Jefferson County56.6Montezuma County: 56.6 %Montezuma County56.6La Plata County: 55.6 %La Plata County55.6Costilla County: 55.3 %Costilla County55.3Denver County: 55 %Denver County55Clear Creek County: 53.5 %Clear Creek County53.5Otero County: 53.2 %Otero County53.2Cheyenne County: 52.4 %Cheyenne County52.4Ouray County: 51.7 %Ouray County51.7Larimer County: 51.3 %Larimer County51.3Rio Grande County: 51.1 %Rio Grande County51.1Prowers County: 50.6 %Prowers County50.6Arapahoe County: 49.5 %Arapahoe County49.5Eagle County: 49.4 %Eagle County49.4Kiowa County: 47.8 %Kiowa County47.8Bent County: 47.4 %Bent County47.4Lincoln County: 46.9 %Lincoln County46.9Crowley County: 46.8 %Crowley County46.8Mesa County: 46.7 %Mesa County46.7Weld County: 45.4 %Weld County45.4Delta County: 45.2 %Delta County45.2Garfield County: 44.6 %Garfield County44.6Archuleta County: 43.5 %Archuleta County43.5Kit Carson County: 43.5 %Kit Carson County43.5
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2023 (%)Change on 2022
1Dolores County1000 pts
1San Juan County1000 pts
3Gilpin County93+93 pts
4Routt County87+16.3 pts
5Pitkin County75.6-2.4 pts
6Lake County73.8+15.2 pts
7Gunnison County73.7+7.7 pts
8Boulder County73.7+5.8 pts
9Baca County68.9+12.6 pts
10Huerfano County66.90 pts
11Logan County66.3+15.3 pts
12Saguache County61.3-3.9 pts
13Chaffee County60.6+14.4 pts
14Douglas County60.5+2 pts
15Sedgwick County60.3+11 pts
16Custer County58.3+3.8 pts
17Jefferson County56.6+1.2 pts
18Montezuma County56.6-4 pts
19La Plata County55.6+0.4 pts
20Costilla County55.3+3.5 pts
21Denver County55+1.7 pts
22Clear Creek County53.5-13.7 pts
23Otero County53.2-14.6 pts
24Cheyenne County52.4+3.9 pts
25Ouray County51.7-3.6 pts
26Larimer County51.3-4 pts
27Rio Grande County51.1-8.4 pts
28Prowers County50.6+6.2 pts
29Arapahoe County49.5-1.9 pts
30Eagle County49.4+3 pts
31Kiowa County47.8-19.6 pts
32Bent County47.4+19.8 pts
33Lincoln County46.9+9.8 pts
34Crowley County46.8+20.7 pts
35Mesa County46.7+6.9 pts
36Weld County45.4+1 pts
37Delta County45.2+5 pts
38Garfield County44.6-4.3 pts
39Archuleta County43.5-17.9 pts
40Kit Carson County43.5+25.2 pts
41Las Animas County43.4+23 pts
42Broomfield County43.1-8.6 pts
43Grand County41.6+10.9 pts
44El Paso County41.3+0.6 pts
45Adams County41.1-0.2 pts
46Moffat County40.5+1.8 pts
47Washington County38.3+3.3 pts
48Morgan County37.5-9.6 pts
49Fremont County37-6.7 pts
50Elbert County36.9+8.5 pts
51Teller County32.8+5.2 pts
52Pueblo County32.7-2.1 pts
53Montrose County32.4+0.9 pts
54Alamosa County32-3.7 pts
55Summit County29.8-5.5 pts
56Phillips County29-1.8 pts
57Park County26.6+11.2 pts
58Conejos County25.8+2.2 pts
59Jackson County25-4.4 pts
60Yuma County24+3.3 pts
61San Miguel County21.1-9.3 pts
62Rio Blanco County12.4-5.6 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. 2 counties with data in other periods have no value for 2023 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/2023/table-based-SF/data/5YRData/acsdt5y2023-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, 2023) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-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, 2023. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b14003.dat. Invokely, https://invokely.ai/rankings/preschool-enrollment-ages-3-4/colorado-counties?period=2023. 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, 2023. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b14003.dat. Also distributed by Invokely, https://invokely.ai/rankings/preschool-enrollment-ages-3-4/colorado-counties?period=2023.

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, 2023 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b14003.dat, via Invokely: https://invokely.ai/rankings/preschool-enrollment-ages-3-4/colorado-counties?period=2023 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_colorado_by_2023,
  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, 2023}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b14003.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/preschool-enrollment-ages-3-4/colorado-counties?period=2023. 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/2023/table-based-SF/data/5YRData/acsdt5y2023-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, 2023
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b14003.dat
L2  - https://invokely.ai/rankings/preschool-enrollment-ages-3-4/colorado-counties?period=2023
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/preschool-enrollment-ages-3-4/colorado-counties?period=2023.
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/2023/table-based-SF/data/5YRData/acsdt5y2023-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 2023, according to the U.S. Census Bureau.

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

Rio Blanco County, with 12.4% in 2023.

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. 2 counties have no value for 2023 and are not ranked.

School enrolment, children aged 3 and 4: other rankings

Counties in Colorado: more rankings