Washington, Illinois Map and Directory

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According to the United States Census Bureau, Washington is a City that is located in Tazewell County, Illinois at 40.70 degrees North and 89.41 degrees West. The city's time zone is America/Chicago, and the city's primary telephone area code is 309. The land area of Washington is about 8.02 square miles, whereas the water area of the city is about 0.01 square miles. Tazewell County's land area is about 649 square miles, so the city occupies about 1.2 percent of the county's total land area.

The Census Bureau estimates that Washington had about 16,516 residents in 2019, which is approximately 2,059 people per square mile of land area.

According to recent American Community Survey data, the median household income in Washington was about $76,508 per year.

The Illinois counties map at upper right shows Tazewell County, highlighted in red. Use the menu below to display interactive maps of Washington, either in a frame on this page or in full-screen mode.

Use the menu below to display categorized Washington directories.