Coverage Map

KOHI is licensed to broadcast with 1000 watts daytime and 12 watts nighttime.  We have a pre-sunrise authority to sign on at 6AM each morning with 500 watts. We are currently working

on our ground system to reach

the purple circle areas with a stronger signal!


Our primary coverage area is Columbia County and parts of western Cowlitz County.


Cities we serve:  St. Helens, Scappoose, Rainier, Clatskanie, Vernonia, Woodland, Kalama,

LaCenter, Salmon Creek.


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La Center




To contact us:

Phone: 503-397-1600

Fax: 503-397-1601