Counties in Washington by female population share

Asotin County had the highest female population share of 39 counties in 2018, at 51.5%. Franklin County had the lowest, at 48.1%. The median was 50% and the figure for Washington was 50.1%. Source: the U.S. Census Bureau.

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Highest51.5Asotin County
Lowest48.1Franklin County
Median5039 counties
Washington50.1History

Map of counties, 2018

Adams County: 49.2 %Asotin County: 51.5 %Benton County: 50.3 %Chelan County: 50.1 %Clallam County: 50.7 %Clark County: 50.6 %Columbia County: 50.3 %Cowlitz County: 50.5 %Douglas County: 49.7 %Ferry County: 49 %Franklin County: 48.1 %Garfield County: 49.2 %Grant County: 48.9 %Grays Harbor County: 48.7 %Island County: 50.4 %Jefferson County: 50.9 %King County: 50 %Kitsap County: 49.3 %Kittitas County: 49.6 %Klickitat County: 48.9 %Lewis County: 50.1 %Lincoln County: 49.2 %Mason County: 48.5 %Okanogan County: 48.8 %Pacific County: 49.9 %Pend Oreille County: 49.5 %Pierce County: 50.3 %San Juan County: 51.4 %Skagit County: 50.7 %Skamania County: 48.6 %Snohomish County: 50.1 %Spokane County: 50.5 %Stevens County: 50.1 %Thurston County: 51.2 %Wahkiakum County: 49.8 %Walla Walla County: 48.8 %Whatcom County: 50.7 %Whitman County: 49.9 %Yakima County: 50.1 %
  • Under 49
  • 49 to 50
  • 50 to 51
  • 51 and over
%, 2018. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2018

Asotin County: 51.5 %Asotin County51.5San Juan County: 51.4 %San Juan County51.4Thurston County: 51.2 %Thurston County51.2Jefferson County: 50.9 %Jefferson County50.9Whatcom County: 50.7 %Whatcom County50.7Clallam County: 50.7 %Clallam County50.7Skagit County: 50.7 %Skagit County50.7Clark County: 50.6 %Clark County50.6Cowlitz County: 50.5 %Cowlitz County50.5Spokane County: 50.5 %Spokane County50.5Island County: 50.4 %Island County50.4Pierce County: 50.3 %Pierce County50.3Columbia County: 50.3 %Columbia County50.3Benton County: 50.3 %Benton County50.3Snohomish County: 50.1 %Snohomish County50.1Lewis County: 50.1 %Lewis County50.1Yakima County: 50.1 %Yakima County50.1Stevens County: 50.1 %Stevens County50.1Chelan County: 50.1 %Chelan County50.1King County: 50 %King County50Pacific County: 49.9 %Pacific County49.9Whitman County: 49.9 %Whitman County49.9Wahkiakum County: 49.8 %Wahkiakum County49.8Douglas County: 49.7 %Douglas County49.7Kittitas County: 49.6 %Kittitas County49.6Pend Oreille County: 49.5 %Pend Oreille County49.5Kitsap County: 49.3 %Kitsap County49.3Adams County: 49.2 %Adams County49.2Lincoln County: 49.2 %Lincoln County49.2Garfield County: 49.2 %Garfield County49.2Ferry County: 49 %Ferry County49Grant County: 48.9 %Grant County48.9Klickitat County: 48.9 %Klickitat County48.9Walla Walla County: 48.8 %Walla Walla County48.8Okanogan County: 48.8 %Okanogan County48.8Grays Harbor County: 48.7 %Grays Harbor County48.7Skamania County: 48.6 %Skamania County48.6Mason County: 48.5 %Mason County48.5Franklin County: 48.1 %Franklin County48.1Asotin County: 51.5 %Asotin County51.5San Juan County: 51.4 %San Juan County51.4Thurston County: 51.2 %Thurston County51.2Jefferson County: 50.9 %Jefferson County50.9Whatcom County: 50.7 %Whatcom County50.7Clallam County: 50.7 %Clallam County50.7Skagit County: 50.7 %Skagit County50.7Clark County: 50.6 %Clark County50.6Cowlitz County: 50.5 %Cowlitz County50.5Spokane County: 50.5 %Spokane County50.5Island County: 50.4 %Island County50.4Pierce County: 50.3 %Pierce County50.3Columbia County: 50.3 %Columbia County50.3Benton County: 50.3 %Benton County50.3Snohomish County: 50.1 %Snohomish County50.1Lewis County: 50.1 %Lewis County50.1Yakima County: 50.1 %Yakima County50.1Stevens County: 50.1 %Stevens County50.1Chelan County: 50.1 %Chelan County50.1King County: 50 %King County50Pacific County: 49.9 %Pacific County49.9Whitman County: 49.9 %Whitman County49.9Wahkiakum County: 49.8 %Wahkiakum County49.8Douglas County: 49.7 %Douglas County49.7Kittitas County: 49.6 %Kittitas County49.6Pend Oreille County: 49.5 %Pend Oreille County49.5Kitsap County: 49.3 %Kitsap County49.3Adams County: 49.2 %Adams County49.2Lincoln County: 49.2 %Lincoln County49.2Garfield County: 49.2 %Garfield County49.2Ferry County: 49 %Ferry County49Grant County: 48.9 %Grant County48.9Klickitat County: 48.9 %Klickitat County48.9Walla Walla County: 48.8 %Walla Walla County48.8Okanogan County: 48.8 %Okanogan County48.8Grays Harbor County: 48.7 %Grays Harbor County48.7Skamania County: 48.6 %Skamania County48.6Mason County: 48.5 %Mason County48.5Franklin County: 48.1 %Franklin County48.1
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2018 (%)Change on 2017
1Asotin County51.5-0.1 pts
2San Juan County51.4-0.2 pts
3Thurston County51.2-0 pts
4Jefferson County50.9+0.2 pts
5Whatcom County50.7+0.1 pts
6Clallam County50.7+0.2 pts
7Skagit County50.70 pts
8Clark County50.60 pts
9Cowlitz County50.50 pts
10Spokane County50.5-0 pts
11Island County50.4-0.1 pts
12Pierce County50.30 pts
13Columbia County50.3-0.4 pts
14Benton County50.3+0.1 pts
15Snohomish County50.10 pts
16Lewis County50.10 pts
17Yakima County50.1+0.1 pts
18Stevens County50.1-0 pts
19Chelan County50.10 pts
20King County50-0 pts
21Pacific County49.9+0.2 pts
22Whitman County49.9+0.1 pts
23Wahkiakum County49.80 pts
24Douglas County49.7-0.1 pts
25Kittitas County49.6-0 pts
26Pend Oreille County49.5+0.1 pts
27Kitsap County49.3+0.1 pts
28Adams County49.20 pts
29Lincoln County49.2-0.2 pts
30Garfield County49.2-0.2 pts
31Ferry County49+0.2 pts
32Grant County48.9-0.1 pts
33Klickitat County48.9-0.1 pts
34Walla Walla County48.80 pts
35Okanogan County48.8-0.1 pts
36Grays Harbor County48.7+0.1 pts
37Skamania County48.6-0 pts
38Mason County48.5-0.1 pts
39Franklin County48.1-0 pts

Other periods

About this ranking

Female residents as a percentage of total population on 1 July. United States: Census Bureau county population estimates by sex; states and the nation are sums of their counties.

Counties with large prisons or military bases can have low shares.

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. Population Estimates Program, county population by age and sex: female residents as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. https://www.census.gov/programs-surveys/popest/data/data-sets.html. 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). Population Estimates Program, county population by age and sex: female residents as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties (Counties in Washington by female population share, 2018) [Data set]. Retrieved October 12, 2026, from https://www.census.gov/programs-surveys/popest/data/data-sets.html

MLA 9

Population Estimates Program, county population by age and sex: female residents as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties, Counties in Washington by female population share, 2018. U.S. Census Bureau, 25 June 2026, https://www.census.gov/programs-surveys/popest/data/data-sets.html. Invokely, https://invokely.ai/rankings/female-population-share/washington-counties?period=2018. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Population Estimates Program, county population by age and sex: female residents as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. Counties in Washington by female population share, 2018. Dataset. Accessed October 12, 2026. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Also distributed by Invokely, https://invokely.ai/rankings/female-population-share/washington-counties?period=2018.

Harvard

U.S. Census Bureau (2026) Population Estimates Program, county population by age and sex: female residents as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties, Counties in Washington by female population share, 2018 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/rankings/female-population-share/washington-counties?period=2018 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_washington_by_2018,
  author = {{U.S. Census Bureau}},
  title = {{Population Estimates Program, county population by age and sex: female residents as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties: Counties in Washington by female population share, 2018}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www.census.gov/programs-surveys/popest/data/data-sets.html},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/female-population-share/washington-counties?period=2018. Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: female residents as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Population Estimates Program, county population by age and sex: female residents as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties: Counties in Washington by female population share, 2018
PY  - 2026
DA  - 2026/06/25
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www.census.gov/programs-surveys/popest/data/data-sets.html
L2  - https://invokely.ai/rankings/female-population-share/washington-counties?period=2018
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/female-population-share/washington-counties?period=2018.
N1  - Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: female residents as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.
ER  - 
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Questions

Which county has the highest female population share?

Asotin County, with 51.5% in 2018, according to the U.S. Census Bureau.

Which county has the lowest female population share?

Franklin County, with 48.1% in 2018.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Population Estimates Program, county population by age and sex: female residents as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. Retrieved 2026-10-12.

Female population share: other rankings

Counties in Washington: more rankings