Ahead of Jang, the ranking were the same as last week. Annika Sorenstam remained No. 1 and was again followed by Michelle Wie, Lorena Ochoa, Karrie Webb, Paula Creamer, Cristie Kerr and Yuri Fudoh.
Jang's advance bumped Juli Inkster and Ai Miyazato back one place apiece to ninth and 10th, respectively.
Hee-Won Han remained 11th and Morgan Pressel tumbled two places to 12th, where she was followed by Mi Hyun Kim and Shiho Ohyama, who retained their positions from last week.
Brittany Lang finished tied for second place on Sunday and moved up three places to No. 15 in the rankings. She was trailed by Seon-Hwa Lee, Natalie Gulbis, Ji-Hee Lee, Se-Ri Pak and Pat Hurst to round out the top 20.
In that final group, only Pak gained ground from last week's rankings.