Columbia
The Columbia Section serves a crescent of counties including Benton, Chelan, Douglas, Franklin, Kittitas, Klickitat, Okanogan, and Yakima.

Board of Directors
| President | Connie Krueger, AICP City of Leavenworth |
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| President-elect | Lisa Parks, AICP Alliance Consulting |
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| Secretary | Todd Samuel City of Pasco |
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| Treasurer | Joseph Schiessl, AICP City of Richland |
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| Chelan County Representative | open |
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| Kittitas County Representative | Christina Wollman Kittitas County |
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| Yakima County Representative | William Bailey Yakima County |
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| Education Coordinator | Christina Wollman Kittitas County |
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| Professional Development Coordinator | Anne Knapp The Governor's Office of Regulatory Assistance |
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| Communications Officer | open | |
| Public Information Officer | open | |
| Legislative Liaison | open | |
| Student Representative | open | |

