Important Numbers Emergency - 911 Sheriff Non-Emergency - (317) 736-9155 County information (317) 346-4700
County Seat: Franklin Johnson County, Indiana Largest City: Greenwood (Population in 2007 = 46,389) Population per Square Mile: 424.6 Square Miles in Johnson County: 320.2
Named for Indiana Supreme Court Judge John Johnson, Johnson County was established in 1822 and is home to over 100,000 Hoosiers. The second fastest growing county in the Indianapolis metropolitan area, Johnson county provides lots of amenities but still maintains a friendly, hometown attitude.
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