meaningful electoral options

Broad representation, strong voter participation, and competitive elections indicate a healthy democracy. Since 2002, nearly half of Portland City Commissioners were elected with support from less than 25% of registered voters, and only four races were competitive. This trend is linked to primary elections deciding most City Commissioner and Mayoral races over the past couple of decades. Low participation in these primaries meant relatively few Portlanders determined who would represent the city. Starting in 2024, city races no longer have a primary.

The 2021-22 Charter Commission aimed to broaden representation on City Council and avoid one electorate making decisions for another.

tracking this goal:

One year of elections won’t be enough to establish trends or identify the root causes for electoral competitiveness or voter support for elected leaders. Several years of data will be needed to accurately assess the impact of the new elections system. Learn more about the kinds of data we’re using, and how to include it in responsible analysis.

Important to know about this data: This data is based on all the registered voters who supported the winning candidate. The number of registered voters is typically larger than the number of voters who cast a ballot in a specific election, and in city races and primary races the difference can be significant. Many registered voters do not participate in primary elections at all, and those who do sometimes vote for a candidate in a statewide or Federal election, but not in local government elections. As result, many local races were decided by more than 50% of the vote, while earning support from fewer than 25% of all registered voters.

Download data

About these dashboards: Explore this rich data set by adjusting filters, hovering over graphs and charts to see more data details, and clicking to isolate specific data criteria.

Learn more: Scroll to the bottom of this page to dive deeper into the stories the data tells.

About this data: 2024 data were originally published by the Multnomah County Elections Office here.

getting into the data and trends

background

The Portland Charter Commission’s desired outcomes included interest that voters would “have more choices and more opportunities to elect their preferred candidate” and would “feel their choices matter.” “The Charter Commission also hoped to ensure that “one electorate doesn’t set up choices for another electorate.”

what indicators do we track?

  1. Voter support for winning candidates: We calculate the percent of registered voters who voted for the winning candidates in each election. This metric reflects the overall support of an elected official. It takes into account voter turnout and candidate popularity with voters.

  2. Competitiveness: We use competitiveness, or the shortfall in votes that the runner-up would have needed to win the election, as an indicator of voter choice. To compare electoral competitiveness across different election types (such as first-past-the-post and ranked choice voting in multi-member districts), we adopted a metric created by Stanford professor Gary Cox in 2019 to measure the smallest change in votes that would result in a different election outcome.

about the data

Units of Measure: (1) Percent of registered voters who cast a vote for the winning candidate (2) Runner-up vote shortfall

Period of Time: 2000 - 2022

Definition:

(1) The number of votes for the winning candidate divided by the number of registered voters

(2) For a single winner election, the runner-up vote shortfall is the difference in the number of votes the 2nd place candidate received minus half of all valid votes in the contest, divided by the total number of votes cast in the contest. The closer the shortfall is to zero, the more competitive the election.

Source:  Portland City Elections Results

Type of Data: Elections data

Geography: Portland, OR

good to know

  • As of 2024, Portland offices no longer have primary election contests.

other resources

  • PDX Charter Facts (a North Star Civic Initiative): The May primary has decided 66% of outcomes in Portland city council and mayoral races since 1970 (source), (source). By eliminating primary elections and moving them to the fall, when Oregon voters turn out in high numbers to participate in Presidential or Gubernatorial elections, overall voter participation in city council member elections will likely increase (source).

what the data shows