According to 2012 estimates, the median household income in the city was $87,074, while the median family income was $115,814. The city’s per capita income was $47,949.
According to the Washington State Office of Financial Management, Issaquah placed sixth in population increase between 2000 and 2005, out of 279 qualifying incorporated municipalities. According to Forbes.com, Issaquah is the state’s second-fastest expanding suburb and the 89th fastest growing in the country.
Issaquah is located at the south end of Lake Sammamish, 15 miles (24 kilometers) east-southeast of Seattle. To the west is Bellevue, while to the north is Sammamish. The city of Issaquah is located along the Mountains to Sound Greenway.
The city has a total area of 11.40 square miles (29.53 km2), of which 11.38 square miles (29.47 km2) is land and 0.02 square miles (0.05 km2) is water, according to the United States Census Bureau.
Issaquah is encircled on three sides by the Issaquah Alps: Cougar Mountain on the west, Squak Mountain on the south, and Tiger Mountain on the southeast. Lake Sammamish is located north of Issaquah. On the lower slopes of the Cougar and Squak Mountains, substantial neighborhoods exist, though the majority of the three mountains are preserved in public ownership as Squak Mountain State Park, Cougar Mountain Regional Wildland Park, West Tiger Mountain National Recreation Area, and Tiger Mountain State Forest. Geologists have highlighted that the chemical and geological composition of these three mountains is significantly different than that of the Cascade Range, owing to their lack of volcanic origin, although the Cascade Range as a whole is assumed to have evolved by volcanic activity. They believe that these three mountains are the remnants of a much older range that has been degraded by earthquakes, volcanic activity, and plate movement. (Source: Wikipedia)