Counties in California by female population share

Yolo County had the highest female population share of 58 counties in 2018, at 51.7%. Lassen County had the lowest, at 36.2%. The median was 50.2% and the figure for California was 50.5%. Source: the U.S. Census Bureau.

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Highest51.7Yolo County
Lowest36.2Lassen County
Median50.258 counties
California50.5History

Map of counties, 2018

Alameda County: 51 %Alpine County: 47.3 %Amador County: 45.5 %Butte County: 50.7 %Calaveras County: 49.9 %Colusa County: 49.4 %Contra Costa County: 51.2 %Del Norte County: 45.9 %El Dorado County: 50.3 %Fresno County: 50.3 %Glenn County: 49.9 %Humboldt County: 50.2 %Imperial County: 49.6 %Inyo County: 49.3 %Kern County: 49.2 %Kings County: 45.7 %Lake County: 49.6 %Lassen County: 36.2 %Los Angeles County: 50.9 %Madera County: 50.5 %Marin County: 51.1 %Mariposa County: 49.5 %Mendocino County: 50 %Merced County: 50 %Modoc County: 50.1 %Mono County: 46.9 %Monterey County: 49.5 %Napa County: 50.7 %Nevada County: 50.8 %Orange County: 50.9 %Placer County: 51.3 %Plumas County: 49.8 %Riverside County: 50.4 %Sacramento County: 51.2 %San Benito County: 50.2 %San Bernardino County: 50.5 %San Diego County: 50.1 %San Francisco County: 48.9 %San Joaquin County: 50.2 %San Luis Obispo County: 50 %San Mateo County: 50.6 %Santa Barbara County: 50.4 %Santa Clara County: 49.7 %Santa Cruz County: 50.3 %Shasta County: 50.8 %Sierra County: 50 %Siskiyou County: 50.3 %Solano County: 50.4 %Sonoma County: 51.2 %Stanislaus County: 50.7 %Sutter County: 50.2 %Tehama County: 50.2 %Trinity County: 44.5 %Tulare County: 50.3 %Tuolumne County: 48.3 %Ventura County: 50.8 %Yolo County: 51.7 %Yuba County: 49.6 %
  • 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

Yolo County: 51.7 %Yolo County51.7Placer County: 51.3 %Placer County51.3Contra Costa County: 51.2 %Contra Costa County51.2Sonoma County: 51.2 %Sonoma County51.2Sacramento County: 51.2 %Sacramento County51.2Marin County: 51.1 %Marin County51.1Alameda County: 51 %Alameda County51Los Angeles County: 50.9 %Los Angeles County50.9Orange County: 50.9 %Orange County50.9Ventura County: 50.8 %Ventura County50.8Shasta County: 50.8 %Shasta County50.8Nevada County: 50.8 %Nevada County50.8Napa County: 50.7 %Napa County50.7Stanislaus County: 50.7 %Stanislaus County50.7Butte County: 50.7 %Butte County50.7San Mateo County: 50.6 %San Mateo County50.6Madera County: 50.5 %Madera County50.5San Bernardino County: 50.5 %San Bernardino County50.5Riverside County: 50.4 %Riverside County50.4Solano County: 50.4 %Solano County50.4Santa Barbara County: 50.4 %Santa Barbara County50.4Siskiyou County: 50.3 %Siskiyou County50.3Santa Cruz County: 50.3 %Santa Cruz County50.3El Dorado County: 50.3 %El Dorado County50.3Fresno County: 50.3 %Fresno County50.3Tulare County: 50.3 %Tulare County50.3San Joaquin County: 50.2 %San Joaquin County50.2San Benito County: 50.2 %San Benito County50.2Sutter County: 50.2 %Sutter County50.2Humboldt County: 50.2 %Humboldt County50.2Tehama County: 50.2 %Tehama County50.2Modoc County: 50.1 %Modoc County50.1San Diego County: 50.1 %San Diego County50.1Merced County: 50 %Merced County50San Luis Obispo County: 50 %San Luis Obispo County50Mendocino County: 50 %Mendocino County50Sierra County: 50 %Sierra County50Calaveras County: 49.9 %Calaveras County49.9Glenn County: 49.9 %Glenn County49.9Plumas County: 49.8 %Plumas County49.8Santa Clara County: 49.7 %Santa Clara County49.7Yuba County: 49.6 %Yuba County49.6Imperial County: 49.6 %Imperial County49.6Lake County: 49.6 %Lake County49.6Monterey County: 49.5 %Monterey County49.5Mariposa County: 49.5 %Mariposa County49.5Colusa County: 49.4 %Colusa County49.4Inyo County: 49.3 %Inyo County49.3Kern County: 49.2 %Kern County49.2San Francisco County: 48.9 %San Francisco County48.9Tuolumne County: 48.3 %Tuolumne County48.3Alpine County: 47.3 %Alpine County47.3Mono County: 46.9 %Mono County46.9Del Norte County: 45.9 %Del Norte County45.9Kings County: 45.7 %Kings County45.7Amador County: 45.5 %Amador County45.5Trinity County: 44.5 %Trinity County44.5Lassen County: 36.2 %Lassen County36.2Yolo County: 51.7 %Yolo County51.7Placer County: 51.3 %Placer County51.3Contra Costa County: 51.2 %Contra Costa County51.2Sonoma County: 51.2 %Sonoma County51.2Sacramento County: 51.2 %Sacramento County51.2Marin County: 51.1 %Marin County51.1Alameda County: 51 %Alameda County51Los Angeles County: 50.9 %Los Angeles County50.9Orange County: 50.9 %Orange County50.9Ventura County: 50.8 %Ventura County50.8Shasta County: 50.8 %Shasta County50.8Nevada County: 50.8 %Nevada County50.8Napa County: 50.7 %Napa County50.7Stanislaus County: 50.7 %Stanislaus County50.7Butte County: 50.7 %Butte County50.7San Mateo County: 50.6 %San Mateo County50.6Madera County: 50.5 %Madera County50.5San Bernardino County: 50.5 %San Bernardino County50.5Riverside County: 50.4 %Riverside County50.4Solano County: 50.4 %Solano County50.4Santa Barbara County: 50.4 %Santa Barbara County50.4Siskiyou County: 50.3 %Siskiyou County50.3Santa Cruz County: 50.3 %Santa Cruz County50.3El Dorado County: 50.3 %El Dorado County50.3Fresno County: 50.3 %Fresno County50.3Tulare County: 50.3 %Tulare County50.3San Joaquin County: 50.2 %San Joaquin County50.2San Benito County: 50.2 %San Benito County50.2Sutter County: 50.2 %Sutter County50.2Humboldt County: 50.2 %Humboldt County50.2Tehama County: 50.2 %Tehama County50.2Modoc County: 50.1 %Modoc County50.1San Diego County: 50.1 %San Diego County50.1Merced County: 50 %Merced County50San Luis Obispo County: 50 %San Luis Obispo County50Mendocino County: 50 %Mendocino County50Sierra County: 50 %Sierra County50Calaveras County: 49.9 %Calaveras County49.9Glenn County: 49.9 %Glenn County49.9Plumas County: 49.8 %Plumas County49.8Santa Clara County: 49.7 %Santa Clara County49.7Yuba County: 49.6 %Yuba County49.6Imperial County: 49.6 %Imperial County49.6Lake County: 49.6 %Lake County49.6Monterey County: 49.5 %Monterey County49.5Mariposa County: 49.5 %Mariposa County49.5Colusa County: 49.4 %Colusa County49.4Inyo County: 49.3 %Inyo County49.3Kern County: 49.2 %Kern County49.2San Francisco County: 48.9 %San Francisco County48.9Tuolumne County: 48.3 %Tuolumne County48.3Alpine County: 47.3 %Alpine County47.3Mono County: 46.9 %Mono County46.9Del Norte County: 45.9 %Del Norte County45.9Kings County: 45.7 %Kings County45.7Amador County: 45.5 %Amador County45.5Trinity County: 44.5 %Trinity County44.5Lassen County: 36.2 %Lassen County36.2
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2018 (%)Change on 2017
1Yolo County51.7+0.1 pts
2Placer County51.3-0.1 pts
3Contra Costa County51.2-0 pts
4Sonoma County51.2+0.1 pts
5Sacramento County51.2-0 pts
6Marin County51.1-0 pts
7Alameda County51-0 pts
8Los Angeles County50.90 pts
9Orange County50.90 pts
10Ventura County50.80 pts
11Shasta County50.8-0 pts
12Nevada County50.80 pts
13Napa County50.7+0.1 pts
14Stanislaus County50.7-0 pts
15Butte County50.70 pts
16San Mateo County50.6-0.1 pts
17Madera County50.5-0.1 pts
18San Bernardino County50.50 pts
19Riverside County50.4-0 pts
20Solano County50.40 pts
21Santa Barbara County50.4+0.1 pts
22Siskiyou County50.30 pts
23Santa Cruz County50.3+0.1 pts
24El Dorado County50.30 pts
25Fresno County50.30 pts
26Tulare County50.3+0.1 pts
27San Joaquin County50.20 pts
28San Benito County50.20 pts
29Sutter County50.2-0 pts
30Humboldt County50.20 pts
31Tehama County50.2-0.1 pts
32Modoc County50.1+0.1 pts
33San Diego County50.10 pts
34Merced County500 pts
35San Luis Obispo County50+0.1 pts
36Mendocino County50-0 pts
37Sierra County500 pts
38Calaveras County49.9+0.1 pts
39Glenn County49.90 pts
40Plumas County49.8-0.1 pts
41Santa Clara County49.7-0 pts
42Yuba County49.60 pts
43Imperial County49.6+0.2 pts
44Lake County49.6-0.1 pts
45Monterey County49.5+0.2 pts
46Mariposa County49.5+0.3 pts
47Colusa County49.40 pts
48Inyo County49.3+0.1 pts
49Kern County49.2+0.1 pts
50San Francisco County48.90 pts
51Tuolumne County48.30 pts
52Alpine County47.3+1.5 pts
53Mono County46.90 pts
54Del Norte County45.9-0.5 pts
55Kings County45.7-0.1 pts
56Amador County45.5-0.5 pts
57Trinity County44.5-0.3 pts
58Lassen County36.2+0.2 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 California 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 California 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/california-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 California 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/california-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 California 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/california-counties?period=2018 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_california_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 California 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/california-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 California 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/california-counties?period=2018
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/female-population-share/california-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?

Yolo County, with 51.7% in 2018, according to the U.S. Census Bureau.

Which county has the lowest female population share?

Lassen County, with 36.2% 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 California: more rankings