City Councillor Michelle Wu and Acting Mayor Kim Janey top the poll of likely Sept. 14 preliminary voters released Tuesday by the Boston Globe and Suffolk University.

Surveyed on their first choice for the top job in City Hall, 23.4 percent said Wu had their vote. Janey received 21.6 percent.

City Councillor Annissa Essaibi George took 14.4 percent and City Councillor Andrea Campbell received 10.8 percent.

State Rep. Jon Santiago received 4.6 percent and John Barros, former Mayor Marty Walsh's economic development chief, had 1.8 percent.

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Retired police officer Robert Cappucci and North End resident Richard Spagnuolo each received under 1 percent. Twenty-two percent said they were still undecided.

The poll surveyed 500 likely preliminary voters between June 23 and June 26. Housing was the top issue that will affect their vote, they said, followed by racism and justice and schools and education, and the economy/jobs.

Asked for their second choice, 18.7 percent of voters picked Wu. Campbell followed with 15.7 percent. Behind her were Janey (13.1 percent), Essaibi George (11.57 percent), Barros (8.7 percent), Santiago (5.1 percent), Cappucci (2.8 percent) and Spagnuolo (0.77 percent). Twenty-three percent were undecided.

The poll also asked about favorability ratings. Walsh, who left for President Biden's administration in March, had a 68 percent favorable rating, and a 21.6 percent unfavorable rating. He has said he will not endorse a candidate in the race to succeed him.

Sixty-two percent said they had a favorable rating of Wu, followed by 57.6% saying they had a favorable rating of Janey.

Poll respondents were also asked about electing a person of color as mayor and how they plan to vote on Sept. 14. The responses are below.

How important is it to you that Boston elects a Black mayor or another person of color?

37 percent - Very important
27 percent - Somewhat important
13 percent - Not very important
21.2 percent - Not at all important
1.20 percent - Undecided

How important is it to you that Boston elects a woman for mayor?

35 percent - Very important
30 percent - Somewhat important
14 percent - Not very important
19.6 percent - Not at all important
1.4 percent - Undecided

Voters said race relations between white and Black residents in Boston are...

5 percent - Very good
47 percent - Somewhat good
32 percent - Somewhat bad
10 percent - Very bad
6 percent - Undecided

How do you plan to vote in the preliminary?

53.6 percent - In-person on Election Day
28.2 percent - In-person through early voting
14.8 percent - By mail
3.4 percent - Undecided