Main city: Omak
Timezone: Pacific
Phone type: Landline
Operator: Level 3 Communications

Omak, a city located in the foothills of the Okanogan Highlands in north-central Washington, United States. With an estimated 4,815 residents as of 2012, distributed over a land area of 3.43 square miles (8.9 km), Omak is the largest municipality of Okanogan County and the largest municipality in Central Washington north of Wenatchee. The Greater Omak Area of around 8,229 inhabitants as of the 2010 census is the largest urban cluster in the Okanogan Country region, encompassing most of its twin city of Okanogan. The population has increased significantly since the 1910 census, reporting 520 residents just prior to incorporation in 1911. ^source

North American area code 509 is the telephone area code for the eastern two-thirds of Washington. The western boundary of 509 roughly follows the Cascades. The 509 area includes: Spokane, the Tri-Cities (Richland, Pasco, and Kennewick), Yakima, Walla Walla, Tekoa, and Wenatchee. The 509 code was created in a split from 206 in a flash-cut on January 1, 1957. ^source