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

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

Wahkiakum County had the highest school enrolment, children aged 3 and 4 of 39 counties in 2021, at 78.8%. Klickitat County had the lowest, at 18.3%. The median was 38.6% and the figure for Washington was 42.7%. Source: the U.S. Census Bureau.

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Highest78.8Wahkiakum County
Lowest18.3Klickitat County
Median38.639 counties
Washington42.7History

Map of counties, 2021

Adams County: 31.6 %Asotin County: 43.7 %Benton County: 35.8 %Chelan County: 36.3 %Clallam County: 40.6 %Clark County: 36 %Columbia County: 25 %Cowlitz County: 45 %Douglas County: 22.2 %Ferry County: 54.5 %Franklin County: 37 %Garfield County: 46.7 %Grant County: 37.4 %Grays Harbor County: 44.3 %Island County: 45.8 %Jefferson County: 45.5 %King County: 51.8 %Kitsap County: 44.6 %Kittitas County: 38.6 %Klickitat County: 18.3 %Lewis County: 37.1 %Lincoln County: 54.1 %Mason County: 26 %Okanogan County: 33.9 %Pacific County: 55.6 %Pend Oreille County: 34.5 %Pierce County: 35.7 %San Juan County: 35.8 %Skagit County: 46 %Skamania County: 24.6 %Snohomish County: 45.3 %Spokane County: 41.9 %Stevens County: 39.2 %Thurston County: 37.1 %Wahkiakum County: 78.8 %Walla Walla County: 50.8 %Whatcom County: 37.3 %Whitman County: 48.5 %Yakima County: 32.1 %
  • Under 33
  • 33 to 36
  • 36 to 39
  • 39 to 45
  • 45 to 48
  • 48 and over
%, 2021. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2021

Wahkiakum County: 78.8 %Wahkiakum County78.8Pacific County: 55.6 %Pacific County55.6Ferry County: 54.5 %Ferry County54.5Lincoln County: 54.1 %Lincoln County54.1King County: 51.8 %King County51.8Walla Walla County: 50.8 %Walla Walla County50.8Whitman County: 48.5 %Whitman County48.5Garfield County: 46.7 %Garfield County46.7Skagit County: 46 %Skagit County46Island County: 45.8 %Island County45.8Jefferson County: 45.5 %Jefferson County45.5Snohomish County: 45.3 %Snohomish County45.3Cowlitz County: 45 %Cowlitz County45Kitsap County: 44.6 %Kitsap County44.6Grays Harbor County: 44.3 %Grays Harbor County44.3Asotin County: 43.7 %Asotin County43.7Spokane County: 41.9 %Spokane County41.9Clallam County: 40.6 %Clallam County40.6Stevens County: 39.2 %Stevens County39.2Kittitas County: 38.6 %Kittitas County38.6Grant County: 37.4 %Grant County37.4Whatcom County: 37.3 %Whatcom County37.3Lewis County: 37.1 %Lewis County37.1Thurston County: 37.1 %Thurston County37.1Franklin County: 37 %Franklin County37Chelan County: 36.3 %Chelan County36.3Clark County: 36 %Clark County36San Juan County: 35.8 %San Juan County35.8Benton County: 35.8 %Benton County35.8Pierce County: 35.7 %Pierce County35.7Pend Oreille County: 34.5 %Pend Oreille County34.5Okanogan County: 33.9 %Okanogan County33.9Yakima County: 32.1 %Yakima County32.1Adams County: 31.6 %Adams County31.6Mason County: 26 %Mason County26Columbia County: 25 %Columbia County25Skamania County: 24.6 %Skamania County24.6Douglas County: 22.2 %Douglas County22.2Klickitat County: 18.3 %Klickitat County18.3Wahkiakum County: 78.8 %Wahkiakum County78.8Pacific County: 55.6 %Pacific County55.6Ferry County: 54.5 %Ferry County54.5Lincoln County: 54.1 %Lincoln County54.1King County: 51.8 %King County51.8Walla Walla County: 50.8 %Walla Walla County50.8Whitman County: 48.5 %Whitman County48.5Garfield County: 46.7 %Garfield County46.7Skagit County: 46 %Skagit County46Island County: 45.8 %Island County45.8Jefferson County: 45.5 %Jefferson County45.5Snohomish County: 45.3 %Snohomish County45.3Cowlitz County: 45 %Cowlitz County45Kitsap County: 44.6 %Kitsap County44.6Grays Harbor County: 44.3 %Grays Harbor County44.3Asotin County: 43.7 %Asotin County43.7Spokane County: 41.9 %Spokane County41.9Clallam County: 40.6 %Clallam County40.6Stevens County: 39.2 %Stevens County39.2Kittitas County: 38.6 %Kittitas County38.6Grant County: 37.4 %Grant County37.4Whatcom County: 37.3 %Whatcom County37.3Lewis County: 37.1 %Lewis County37.1Thurston County: 37.1 %Thurston County37.1Franklin County: 37 %Franklin County37Chelan County: 36.3 %Chelan County36.3Clark County: 36 %Clark County36San Juan County: 35.8 %San Juan County35.8Benton County: 35.8 %Benton County35.8Pierce County: 35.7 %Pierce County35.7Pend Oreille County: 34.5 %Pend Oreille County34.5Okanogan County: 33.9 %Okanogan County33.9Yakima County: 32.1 %Yakima County32.1Adams County: 31.6 %Adams County31.6Mason County: 26 %Mason County26Columbia County: 25 %Columbia County25Skamania County: 24.6 %Skamania County24.6Douglas County: 22.2 %Douglas County22.2Klickitat County: 18.3 %Klickitat County18.3
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2021 (%)
1Wahkiakum County78.8
2Pacific County55.6
3Ferry County54.5
4Lincoln County54.1
5King County51.8
6Walla Walla County50.8
7Whitman County48.5
8Garfield County46.7
9Skagit County46
10Island County45.8
11Jefferson County45.5
12Snohomish County45.3
13Cowlitz County45
14Kitsap County44.6
15Grays Harbor County44.3
16Asotin County43.7
17Spokane County41.9
18Clallam County40.6
19Stevens County39.2
20Kittitas County38.6
21Grant County37.4
22Whatcom County37.3
23Lewis County37.1
24Thurston County37.1
25Franklin County37
26Chelan County36.3
27Clark County36
28San Juan County35.8
29Benton County35.8
30Pierce County35.7
31Pend Oreille County34.5
32Okanogan County33.9
33Yakima County32.1
34Adams County31.6
35Mason County26
36Columbia County25
37Skamania County24.6
38Douglas County22.2
39Klickitat County18.3

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 Washington 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 Washington 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/washington-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 Washington 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/washington-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 Washington 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/washington-counties?period=2021 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_washington_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 Washington 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/washington-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 Washington 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/washington-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/preschool-enrollment-ages-3-4/washington-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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Rank Counties in Washington by school enrolment, children aged 3 and 4 using official data, and cite the source.
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Questions

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

Wahkiakum County, with 78.8% in 2021, according to the U.S. Census Bureau.

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

Klickitat County, with 18.3% 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 Washington: more rankings