Polling in Other States

SUPRC's polls have tracked elections for, President, Governor and US Senate, as well as national, statewide and local issues in many states, including: Arkansas, California, Colorado, Connecticut, Florida, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Michigan, Minnesota, Missouri, Montana, Nevada, New Jersey, North Carolina, Ohio, Oregon, Pennsylvania, Rhode Island, South Carolina, Utah, and Virginia.

Poll Documents

Suffolk Press Release

USA TODAY Article

Statement of Methodology

Statewide Methodology: This survey of 500 likely Pennsylvania general election voters was conducted between October 27 and October 30, 2024, and is based on live telephone interviews of adults who indicated they were likely to vote in the November 2024 general election for President and U.S. Senate. Each area's quota and demographic information was determined from previous like elections and 2020 Census data. Samples of both standard landline and cell phones were called using a probability-proportionate-to-size method, which means that the phone numbers assigned to each county were proportional to the number of likely voters expected based on similar past elections. The 67 Pennsylvania counties were grouped into five general regions. Respondents in the household were selected by initially asking for the youngest adult. The margin of sampling error for results based on the total sample is +/-4.4 percentage points. Error margins increase for smaller subgroups in the cross-tabulation document that follows. All surveys may be subject to other sources of error, including but not limited to coverage error and measurement error. Spanish translation provided by Pamela Loaiza.

Bellwether Survey Methodology: The bellwether ID voter lists for Erie and Northampton Counties were called using a tight screen in which all respondents confirmed their county of registration, city/township, and indicated that they were very or somewhat likely to vote in the November 2024 general election. All other respondents were screened out. The field was conducted October 27 to October 30, 2024. The margin of error for 300 respondents is +/- 5.65 percent at a 95 percent level of confidence.

Poll Documents

Suffolk Press Release

USA TODAY Article

Statement of Methodology

Statewide Methodology: This survey of 500 likely Michigan general election voters was conducted between October 24-October 27, 2024, and is based on live telephone interviews of adults who indicated they were likely to vote in the November 2024 general election for president. Each area's quota and demographic information -- including race, education, and age -- was determined from previous like elections and 2020 Census data. Samples of both standard landline and cell phones were called using a probability-proportionate-to-size method, which means that the phone numbers assigned to each county were proportional to the number of likely voters expected based on similar past elections. The 83 Michigan counties were grouped into five general regions. Respondents in the household were selected by initially asking for the youngest adult. The margin of sampling error for the statewide results based on the total sample is +/-4.4 percentage points.

Bellwether Methodology: The Kent County bellwether ID voter lists were called using a tight screen in which all respondents confirmed their county of registration, city/township, and indicated that they were very or somewhat likely to vote in the November 2024 general election. All other respondents were screened out. The field was conducted October 24-October 27, 2024. The margin of error for 300 respondents is +/- 5.65 percent at a 95 percent level of confidence.

Poll Documents

Suffolk Press Release

USA TODAY Article

Statement of Methodology

Statewide Methodology: This survey of 500 likely Wisconsin general election voters was conducted between October 20-October 23, 2024, and is based on live telephone interviews of adults who indicated they were likely to vote in the November 2024 general election for President and U.S. Senate. Each area's quota and demographic information was determined from previous like elections and 2020 Census data. Samples of both standard landline and cell phones were called using a probability-proportionate-to-size method, which means that the phone numbers assigned to each county were proportional to the number of likely voters expected based on similar past elections. The 72 Wisconsin counties were grouped into five general regions. Respondents in the household were selected by initially asking for the youngest adult. The margin of sampling error for results based on the total sample is +/-4.4 percentage points. Error margins increase for smaller subgroups in the cross-tabulation document that follows. All surveys may be subject to other sources of error, including but not limited to coverage error and measurement error.

Bellwether Survey Methodology: The Door County bellwether ID voter lists were called using a tight screen in which all respondents confirmed their county of registration, city/township, and indicated that they were very or somewhat likely to vote in the November 2024 general election. All other respondents were screened out. The field was conducted October 20-October 23, 2024. The margin of error for 300 respondents is +/- 5.65 percent at a 95 percent level of confidence.

Poll Documents

Suffolk Press Release

USA TODAY Article

Statement of Methodology

Each survey of 500 respondents was conducted between September 28 and October 2, 2024, and is based on live telephone interviews of adults 18 years of age or older, residing in the states of Arizona and Nevada, who self-identify as being of Hispanic origin. Quota and demographic information-including gender, party affiliation, education, and age were determined from American Community Survey, 2020 census data, and 2020 exit polling data from each state. Samples of both cell phones and standard landlines were called using the most current registered voter list tagged by racial/ethnic identification, such that the quotas of Hispanic voters were proportional by county in each state. The margin of sampling error for the 500 respondents is +/-4.4 percentage points each. Error margins increase for smaller subgroups in the cross-tabulation document above. All surveys may be subject to other sources of error, including but not limited to coverage error and measurement error. Spanish translations provided by Pamela Loaiza.

Poll Documents

Suffolk Press Release

USA TODAY Article

Statement of Methodology

Statewide Methodology: This survey of 500 likely Arizona general-election voters was conducted between September 19-September 24, 2024, and is based on live telephone interviews of adults who indicated they were likely to vote in the November 2024 general election for president and U.S. Senate. Each area’s quota and demographic information -- including party affiliation, gender, race, education level, and age -- was determined from previous like election exit polls, 2020 Census data, and current registered voter information. Samples of both standard landline and cell phones were called using a probability-proportionate-to-size method, which means that the phone numbers assigned to each county were proportional to the number of likely voters expected based on similar past elections. The 15 Arizona counties were grouped into three general regions. Respondents in the household were selected by initially asking for the youngest adult. The margin of sampling error for results based on the total sample is +/-4.4 percentage points. Error margins increase for smaller subgroups in the cross-tabulation document. Spanish translations provided by Pamela Loaiza.

Bellwether Methodology: The Maricopa County bellwether ID voter list was called using a tight screen in which all respondents confirmed their county of registration, city/township, and indicated that they were very or somewhat likely to vote in the November 2024 general election. All other respondents were screened out. The margin of error for 300 respondents is +/- 5.65 percent at a 95 percent level of confidence. Bellwethers are designed to predict winners, not margins of victory. All surveys may be subject to other sources of error, including but not limited to coverage error and measurement error. Spanish translations provided by Pamela Loaiza.

Poll Documents

Suffolk Press Release

USA TODAY Article

Statement of Methodology

Statewide Methodology: This survey of 500 likely Michigan general election voters was conducted between September 16 and September 19, 2024, and is based on live telephone interviews of adults who indicated they were likely to vote in the November 2024 general election for president. Each area's quota and demographic information -- including race, education, and age -- was determined from previous like elections and 2020 Census data. Samples of both standard landline and cell phones were called using a probability-proportionate-to-size method, which means that the phone numbers assigned to each county were proportional to the number of likely voters expected based on similar past elections. The 83 Michigan counties were grouped into five general regions. Respondents in the household were selected by initially asking for the youngest adult. The margin of sampling error for the statewide results based on the total sample is +/-4.4 percentage points. Spanish translations were provided by Pamela Loaiza.

Bellwether Methodology: The margin of error for the presidential bellwether Kent County (n=300) is +/-5.65 percentage points. Error margins increase for smaller subgroups in the cross-tabulation document that follows. All surveys may be subject to other sources of error, including but not limited to coverage error and measurement error. The bellwether ID voter lists were called using a tight screen in which all respondents confirmed their county of registration, city/township, and indicated that they were very or somewhat likely to vote in the November 2024 general election. All other respondents were screened out. Spanish translations were provided by Pamela Loaiza.

Poll Documents

Suffolk Press Release

USA TODAY Article

Statement of Methodology

Statewide Methodology: This survey of 500 likely Pennsylvania general election voters was conducted between September 11 and September 14, 2024, and is based on live telephone interviews of adults who indicated they were likely to vote in the November 2024 general election for President and U.S. Senate. Each area's quota and demographic information was determined from previous like elections and 2020 Census data. Samples of both standard landline and cell phones were called using a probability-proportionate-to-size method, which means that the phone numbers assigned to each county were proportional to the number of likely voters expected based on similar past elections. The 67 Pennsylvania counties were grouped into five general regions. Respondents in the household were selected by initially asking for the youngest adult. The margin of sampling error for results based on the total sample is +/-4.4 percentage points. Error margins increase for smaller subgroups in the cross-tabulation document that follows. All surveys may be subject to other sources of error, including but not limited to coverage error and measurement error. Spanish translation provided by Pamela Loaiza.

Bellwether Survey Methodology: The bellwether ID voter lists were called using a tight screen in which all respondents confirmed their county of registration, city/township, and indicated that they were very or somewhat likely to vote in the November 2024 general election. All other respondents were screened out. The field was conducted Wednesday September 11-Sunday, September 14, 2024. The margin of error for 300 respondents is +/- 5.65 percent at a 95 percent level of confidence.

Poll Documents

Suffolk Press Release

USA TODAY Article

Statement of Methodology

Each survey of 500 respondents was conducted between August 11 and August 14, 2024, and is based on live telephone interviews of adults 18 years of age or older, residing in the states of Pennsylvania and Michigan, who identify as being African-American. Quota and demographic information-including gender, education, and age-were determined from American Community Survey and census data. Samples of both cell phones and standard landlines were called using the most current registered voter list tagged by racial identification, such that the quotas of African-American voters were proportional by county in each state. The margin of sampling error for the 500 respondents is +/-4.4 percentage points each. Error margins increase for smaller subgroups in the cross-tabulation document above. All surveys may be subject to other sources of error, including but not limited to coverage error and measurement error.

Poll Documents

Suffolk Press Release

USA TODAY Articles

WSVN-TV Articles

Statement of Methodology

This survey of 500 likely Florida general election voters was conducted between August 7 and August 11, 2024, and is based on live telephone interviews of adults who indicated they were likely to vote in the November 2024 general election for President. Each area's quota and demographic information -- including race and age -- was determined from previous like elections and 2020 Census data. Samples of both standard landline and cell phones were called using a probability-proportionate-to-size method, which means that the phone numbers assigned to each county were proportional to the number of likely voters expected based on similar past elections. The 67 Florida counties were grouped into four general regions. Respondents in the household were selected by initially asking for the youngest adult. Surveys were conducted in both English and Spanish. The margin of sampling error for results based on the total sample is +/-4.4 percentage points. Error margins increase for smaller subgroups in the cross-tabulation document that follows. All surveys may be subject to other sources of error, including but not limited to coverage error and measurement error. Poll student Conor Hughes contributed to the design of the survey instrument. Suffolk University poll students Conor Hughes, Emily Dempsey, and Lauren Hyder contributed to the successful execution of this statewide survey.

Poll Documents

Suffolk Press Release

Poll of Black Voters in Pennsylvania and Michigan: Less Enthusiasm for Biden Than in 2020 [PDF]

USA TODAY Articles

Statement of Methodology

Each survey of 500 respondents was conducted between June 9 and June 13, 2024, and is based on live telephone interviews of adults 18 years of age or older, residing in the states of Pennsylvania and Michigan, who identify as being African-American. Quota and demographic information—including gender, education, and age—were determined from American Community Survey and census data. Samples of both cell phones and standard landlines were called using the most current registered voter list tagged by racial identification, such that the quotas of African American voters were proportional by county in each state. The margin of sampling error for the 500 respondents is +/-4.4 percentage points each. Error margins increase for smaller subgroups in the cross-tabulation document above. All surveys may be subject to other sources of error, including but not limited to coverage error and measurement error.

Poll Documents

USA TODAY Article

Statement of Methodology

This survey of 500 South Carolina likely Republican Primary voters was conducted between February 15 and February 18, 2024, and is based on live telephone interviews of adults who indicated they were very likely to vote in the upcoming February 24 Republican Presidential Primary. Each area’s quota and demographic information were determined from 2020 Census data and exit polling from like elections. Samples of both standard landline (9 percent) and cell phones (91 percent) were called using a probability-proportionate-to-size method, which means that the phone numbers assigned to each county were proportional to the number of likely voters expected based on past elections. South Carolina's 46 counties were grouped into four general regions. The margin of sampling error for results based on the total sample of 500 is plus or minus 4.4 percentage points. Error margins increase for smaller subgroups in the cross-tabulation document that follows. All surveys may be subject to other sources of error, including but not limited to coverage error and measurement error.

Poll Documents

Suffolk Article

Statement of Methodology

This survey of 500 likely Iowa Republican Caucus voters was conducted between January 6 and January 10, 2024, and is based on a statewide random sample drawn from a list of registered Republican and No Party voters who indicated they were very or somewhat likely to vote in their local Republican Caucuses for president on January 15, 2024. Each of Iowa's five areas and demographic information were determined from past contested Republican presidential caucuses using a probability-proportionate-to-size method, which means that the phone numbers assigned to each county were proportional to the number of likely caucus voters; the sample included 89% cell phones and 11% landlines. Iowa's 99 counties were grouped into five general regions. The margin of sampling error for results based on the total sample is plus or minus 4.4 percentage points. Error margins increase for smaller subgroups in the cross-tabulation document which follows. All surveys may be subject to other sources of error, including, but not limited to coverage error and measurement error.