JACKSON (AP) — Mississippians return to the polls Tuesday for runoffs that will determine Democratic nominees for one statewide and one regional office and both major parties’ nominees for several legislative seats.

Polls will be open 7 a.m.-7 p.m.

Turnout is traditionally low for runoffs because there are fewer races to lure people to the polls. Candidates acknowledge it’s a challenge to motivate people to remember to vote.

‘‘Face it, there are not a lot of people who are going to come back for a state auditor’s race between two guys like us, names unknown,’’ said Mike Sumrall of Mt. Olive, who faces another political newcomer, Todd Brand of Bailey, in the Democratic runoff for state auditor.

Brand has a doctorate in community college leadership and is the chairman of the Fine Arts and Communication Division at Meridian Community College. He said if he becomes auditor, he wants to demand more efficiency from state agencies.

‘‘Unfortunately, the mentality ’close enough for government work’ still applies in some places,’’ Brand said.

Sumrall has 28 years’ experience working for state and local government, including 23 in the state auditor’s office. Among other jobs, he has served as business manager for Pike County schools.

Sumrall said he wants to increase training for the auditor’s staff, and he wants to expand the use of ‘‘paperless’’ audits, which can be faster and more efficient.

The winner of the Democratic runoff for auditor will face Republican Stacey Pickering in the Nov. 6 general election. The auditor’s job is open this year because the GOP’s Phil Bryant, who has held the job since 1996, is running for lieutenant governor.

There is one restriction on voting Tuesday. People who cast ballots in one party’s primary on Aug. 7 are not allowed to cross over and vote in the other party’s runoff. However, people who did not vote Aug. 7 can vote in either party’s runoff.

The other runoffs:

— Public service commissioner, central district: Democratic runoff between Addie Green and Lynn Posey. The winner will face Republican Charles Barbour, Reform Party candidate Lee Dilworth and independent Kevin Moses in November. Incumbent Nielson Cochran, a Republican, did not seek re-election.

— Senate District 2, in all of Benton and Marshall counties and part of Tippah County: Democratic runoff between Henry Boyd Jr. and Bill Stone. The winner will face Republican incumbent Ralph Doxey in November.

— Senate District 4, in all of Alcorn County and parts of Tippah and Tishomingo counties: Democratic runoff between Kenny Digby and Eric Powell, Republican runoff between Judy Glenn and James Moffitt. Incumbent Travis Little, R-Corinth, did not seek re-election.

— Senate District 10, in all of Panola County and part of Tate County: Democratic runoff between incumbent Nolan Mettetal and Mona Pittman. The winner will face Republican Shelly Turner in November.

— Senate District 20, in parts of Madison and Rankin counties: Republican runoff between Charles Porter and Lee Yancey. The winner will be unopposed in November. Incumbent Charlie Ross, R-Brandon, did not seek re-election; he was defeated in the Aug. 7 GOP primary for lieutenant governor.

— Senate District 36, in all of Claiborne and Jefferson counties and parts of Copiah and Hinds counties: Democratic runoff between Albert Butler and Vincent Davis. The winner will be unopposed in November. Incumbent Lynn Posey, D-Union Church, did not seek re-election; he is running for public service commissioner.

— House District 19, in parts of Itawamba, Lee and Tishomingo counties: Democratic runoff between Brandon Cherry and Mark Duvall. The winner will face Republican Randy Boyd in November. Incumbent Jamie Franks, D-Mooreville, did not seek re-election; he’s running for lieutenant governor.

— House District 20, in parts of Lowndes and Monroe counties: Democratic runoff between Robert Mitchell and Jimmy Puckett. The winner will face Republican Chris Brown in November. Incumbent J.B. Markham, D-Greenwood Springs, did not seek re-election.

— House District 21, in parts of Itawamba and Monroe counties: Democratic runoff between Donnie Bell and Michael Sullivan. The winner will face Republican Paul Walker of Fulton in November. Incumbent Bill Miles, D-Fulton, did not seek re-election.

— House District 77, in parts of Rankin, Simpson and Smith counties: Republican runoff between Andy Gipson and incumbent Clint Rotenberry. The winner will face Democrat Dale Berry and Green Party candidate Lynn McLean in November.

— House District 84, in parts of Clarke, Jasper, Lauderdale and Newton counties: Republican runoff between David Campbell and C.D. Smith. The winner will face Democrat William ‘‘Billy’’ G. Lee and independent Cecil ‘‘Matt’’ Hemphill in November. Incumbent Eric Robinson, R-Quitman, did not run this year.

— House District 91, in parts of Copiah, Covington, Jefferson Davis, Lawrence and Simpson counties: Democratic runoff between Bob Evans and incumbent Joey Hudson. The winner will be unopposed in November.

— House District 99, in parts of Lamar, Marion, Pike and Walthall counties: Democratic runoff between Winston Fortenberry and Ryan Bruhl. The winner will face Republican Bill Pigott in November.

— House District 104, in parts of Forrest and Lamar counties. Republican runoff between Larry Byrd and Chad King. The winner will be unopposed in November. Incumbent Mike Lott, R-Petal, did not seek re-election.