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Knollwood, IL Historical Per Capita Income Data
ACS 2010-2014 data
| Knollwood, IL | 38,728 USD |
| Illinois | 30,019 USD |
| U.S. | 28,555 USD |
ACS 2008-2012 data
| Knollwood, IL | 39,876 USD |
| Illinois | 29,519 USD |
| U.S. | 28,051 USD |
ACS 2006-2010 data
| Knollwood, IL | 37,974 USD |
| Illinois | 28,782 USD |
| U.S. | 27,334 USD |
* ACS stands for U.S. Census American Community Survey. According to the U.S. Census, if the date is a range, you can interpret the data as an average of the period of time.