Voters who want to cast their ballot in the state primary before the Sept. 1 election date can choose from multiple locations in the city of Boston beginning on Sat., Aug. 22. Early voting will be available from that Saturday through Fri., Aug. 28 on certain dates and times in several locations in Dorchester and Mattapan:

• Richard J. Murphy School Cafeteria, 1 Worrell St., Dorchester, on Sat. and Sun., Aug. 22-23, from 11 a.m. to 7 p.m.

• BCYF Perkins Community Center/Lee School Gymnasium, 155 Talbot Ave., Dorchester, on Thurs., Aug. 27, from 12 p.m. to 8 p.m.

• Mildred Avenue School Gymnasium, 5 Mildred Ave., Mattapan, on Thurs., Aug. 27, from 12 p.m. to 8 p.m.

• Boston City Hall on Mon., Aug. 24 from 9 a.m. to 5 p.m.; Tues., Aug. 25 from 9 a.m. to 8 p.m.; Wed., Aug. 26 from 9 a.m. to 5 p.m.; Thurs., Aug. 27 from 9 a.m. to 8 p.m.; and Fri., Aug. 28 from 9 a.m. to 5 p.m.

Individuals can register to vote in the primary election in person at the Election Department in City Hall in Room 241, by mail, online, or through the Registry of Motor Vehicles by Aug. 22 at 8 p.m.

To be eligible to vote, an individual must be at least 18 years of age and a US citizen.

The deadline to request a vote-by-mail ballot is August 26.