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Clear Lake Bank & Trust


Diane Ostendorf

Diane headshot

Diane Ostendorf

VP / Private Banking Officer

Clear Lake Location
322 Main Ave.
Clear Lake, Iowa 50428
Ph: 641.355.2219

Diane Ostendorf attended Iowa Central Community College and began her banking career in 1979. In 1989, she joined CLB&T, serving as a personal banker and IRA specialist. In 2019 she was promoted to vice president of the bank, assisting with private banking relationships. She serves on the Clear Lake Arts Center board of directors, One Vision mentoring program, is vice president of the Clear Lake Dixiefest Board, and is a United Way and American Cancer Society volunteer.