From October 6-13, 2025, DHM Research conducted a mixed-mode (phone and text-to-online) survey of Seattle residents and voters. The purpose of the survey was to understand Seattle’s electorate in general as well as the voter base for the November 2025 election by testing support for different candidates, priority of different issues, and political identity.
Research Methodology
The survey consisted of n=600 Seattle residents and took approximately 12 minutes to complete. The sample included n=400 likely voters and n=200 voters who said there is a 50/50 chance they will vote or less. This design allows for analysis of the potential outcomes of the November election, while also setting up for future polling of the general population on issues beyond the election. Both subgroups are
of a sufficient size to assess opinions generally and to review findings by demographics and psychographics including age, gender, race, sexual orientation, education level, income, political identity, home ownership status, and city district.
Respondents were contacted from multiple lists including a list of registered voters, a landline household list compiled from public records and consumer lists, and a cellular consumer list based off cell and cable consumer information matched to publicly available address information. Telephone respondents were contacted by a live interviewer, and text-to-online respondents received a text invitation directing them to
an online survey. In gathering responses, a variety of quality control measures were employed, including questionnaire pre-testing and validation. Quotas were set by age, gender, race, political party and ideology, education, income, and city region to ensure a representative sample.
Statement of Limitations
Any sampling of opinions or attitudes is subject to a margin of error. The margin of error is a standard statistical calculation that represents differences between the sample and total population at a confidence interval, or probability, calculated to be 95%. This means that there is a 95% probability that the sample taken for the study would fall within the stated margin of error if compared with the results achieved from surveying the entire population. The margin of error for this survey is ± 4.0%.
DHM Research Background
DHM Research has been providing opinion research and consultation throughout the Pacific Northwest and other regions of the United States for over 40 years. The firm is nonpartisan and independent and specializes in research projects to support public policy making.