Editing Los Angeles County, California (section)

==== Voter registration ====
{| class="wikitable"
|-
! colspan="3" | Population and registered voters
|-
! scope="row" style="text-align: left;" | Total population (2020)
| colspan="2" | 10,014,009
|-
! scope="row" style="text-align: left;" | &nbsp;&nbsp;Registered voters<ref name="CA-SS">California Secretary of State. [https://www.sos.ca.gov/elections/report-registration/123day-gen-2024 July 5, 2024 – Report of Registration]. Retrieved September 7, 2024.</ref><ref name="PCT-RV" group=note>Percentage of registered voters with respect to total population. Percentages of party members with respect to registered voters follow.</ref>
| 5,668,603
| 56.6%
|-
! scope="row" style="text-align: left;" | &nbsp;&nbsp;&nbsp;&nbsp;Democratic<ref name="CA-SS" />
| 2,976,209
| 52.5%
|-
! scope="row" style="text-align: left;" | &nbsp;&nbsp;&nbsp;&nbsp;Republican<ref name="CA-SS" />
| 1,025,622
| 18.1%
|-
! scope="row" style="text-align: left;" | &nbsp;&nbsp;&nbsp;&nbsp;Democratic–Republican spread<ref name="CA-SS" />
| <span style="color:#00f;">'''+1,950,587'''</span>
| <span style="color:#00f;">'''+34.4%'''</span>
|-
! scope="row" style="text-align: left;" | &nbsp;&nbsp;&nbsp;&nbsp;[[American Independent Party|American Independent]]<ref name="CA-SS" />
| 181,301
| 3.2%
|-
! scope="row" style="text-align: left;" | &nbsp;&nbsp;&nbsp;&nbsp;Green<ref name="CA-SS" />
| 26,298
| 0.5%
|-
! scope="row" style="text-align: left;" | &nbsp;&nbsp;&nbsp;&nbsp;Libertarian<ref name="CA-SS" />
| 49,018
| 0.9%
|-
! scope="row" style="text-align: left;" | &nbsp;&nbsp;&nbsp;&nbsp;Peace and Freedom<ref name="CA-SS" />
| 42,253
| 0.8%
|-
! scope="row" style="text-align: left;" | &nbsp;&nbsp;&nbsp;&nbsp;Unknown<ref name="CA-SS" />
| 37,101
| 0.7%
|-
! scope="row" style="text-align: left;" | &nbsp;&nbsp;&nbsp;&nbsp;Other<ref name="CA-SS" />
| 53,708
| 1.0%
|-
! scope="row" style="text-align: left;" | &nbsp;&nbsp;&nbsp;&nbsp;No party preference<ref name="CA-SS" />
| 1,277,111
| 22.5%
|}

In the [[United States House of Representatives]], Los Angeles County is split between 17 congressional districts.<ref>{{cite web |title=2021 California Citizens Redistricting Commission (CRC) Congressional Districts |website=California Senate Office of Demographics |url=https://sdmg.senate.ca.gov/sites/sdmg.senate.ca.gov/files/2021/2021_crc_cd_state_a_final.pdf |access-date=April 3, 2024 |archive-date=April 3, 2024 |archive-url=https://web.archive.org/web/20240403213639/https://sdmg.senate.ca.gov/sites/sdmg.senate.ca.gov/files/2021/2021_crc_cd_state_a_final.pdf |url-status=live}}</ref> 
In the [[California State Senate]], Los Angeles County is split between 13 legislative districts.<ref>{{cite web |title=2021 California Citizens Redistricting Commission (CRC) Senate Districts |website=California Senate Office of Demographics |url=https://sdmg.senate.ca.gov/sites/sdmg.senate.ca.gov/files/2021/2021_crc_sd_state_a_final.pdf |access-date=April 3, 2024 |archive-date=May 27, 2024 |archive-url=https://web.archive.org/web/20240527082433/https://sdmg.senate.ca.gov/sites/sdmg.senate.ca.gov/files/2021/2021_crc_sd_state_a_final.pdf |url-status=live}}</ref>
In the [[California State Assembly]], Los Angeles County is split between 24 legislative districts.<ref>{{cite web |title=2021 California Citizens Redistricting Commission (CRC) Assembly Districts |website=California Senate Office of Demographics |url=https://sdmg.senate.ca.gov/sites/sdmg.senate.ca.gov/files/2021/2021_crc_ad_state_a_final.pdf |access-date=April 3, 2024}}</ref>

On November 4, 2008, Los Angeles County was almost evenly split over [[California Proposition 8 (2008)|Proposition 8]], which amended the California Constitution to ban same-sex marriages. The county voted for the amendment 50.04% with a margin of 2,385 votes.<ref>{{Cite web |url=http://www.sos.ca.gov/elections/sov/2008_general/sov_complete.pdf |archiveurl=https://web.archive.org/web/20121018225250/http://www.sos.ca.gov/elections/sov/2008_general/sov_complete.pdf|title="Statement of Vote: 2008 General Election" |archivedate=October 18, 2012}}</ref>