Bellevue is a city in the Eastside

Eastside (King County, Washington)

File:Seattle-lakewashington-lakesammamish.PNG|250px|right|The Eastside is to the right of Seattle.# rough city boundariespoly 137 256 148 256 158 194 172 179 172 237 212 266 133 266Renton...

 region of King County, Washington

King County, Washington

King County is a county located in the U.S. state of Washington. The population in the 2010 census was 1,931,249. King is the most populous county in Washington, and the 14th most populous in the United States....

, United States, across Lake Washington

Lake Washington

Lake Washington is a large freshwater lake adjacent to the city of Seattle. It is the largest lake in King County and the second largest in the state of Washington, after Lake Chelan. It is bordered by the cities of Seattle on the west, Bellevue and Kirkland on the east, Renton on the south and...

 from Seattle. Long known as a suburb

Suburb

The word suburb mostly refers to a residential area, either existing as part of a city or as a separate residential community within commuting distance of a city . Some suburbs have a degree of administrative autonomy, and most have lower population density than inner city neighborhoods...

 or satellite city of Seattle, it is now categorized as an edge city

Edge city

"Edge city" is an American term for a concentration of business, shopping, and entertainment outside a traditional urban area in what had recently been a residential suburb or semi-rural community...

 or a boomburb

Boomburb

Boomburb is a neologism for a large, rapidly growing city that remains essentially suburban in character even as it reaches populations more typical of urban core cities...

. The population was 122,363 at the 2010 census.

Downtown Bellevue is undergoing rapid change. It is currently the second largest city center in Washington state with over 35,000 employees and 5,000 residents.