AP, coaches rank Tigers the same.
LSU ended the 2017 season with a No. 18 ranking in the final coaches poll, six spots below its postseason ranking.
The Tigers fell four spots in the ranking after a New Year’s Day loss to Notre Dame in the Citrus Bowl.
The No. 18 spot also is where LSU ranked in the final AP poll, released earlier Tuesday.
Alabama earned the No. 1 spot after its overtime victory against Georgia in the national championship game Monday. Georgia was No. 2, followed by College Football Playoff semifinalists Oklahoma and Clemson at Nos. 3 and 4, respectively.
Other SEC schools behind Alabama and Georgia were Auburn at No. 12 and Mississippi State at No. 20, two spots below LSU.
Central Florida, which has tried to claim a share of the national title after finishing its undefeated season with a Peach Bowl win against Auburn, was No. 7, ahead of Ohio State at No. 5 and Wisconsin at No. 6.
Miami, which opens the 2018 season against LSU at the Dallas Cowboys stadium in Arlington, Texas, was No. 13.
See the full coaches poll rankings here.