KOMO is a clear-channel Class A station, broadcasting with 50,000 watts, the maximum power for American AM stations. It is non-directional by day but uses a directional antenna at night to avoid interfering with WMVP Chicago and XEOY Mexico City, the two other Class A stations on 1000 AM. Under favorable conditions, KOMO can be heard in the daytime from Vancouver, British Columbia to Portland, Oregon. At night it can be heard across much of Western North America. The station's studios and offices are co-located with sister station KOMO-TV within KOMO Plaza (formerly Fisher Plaza) in the Lower Queen Anne section of Seattle, directly across the street from the Space Needle. The transmitter is on Vashon Island, off SW 159th Street.