a nonresident, you must file Form IL-1040 and Schedule NR if you earned enough taxable income from Illinois sources to have a tax liability (i.e., your Illinois base income from Schedule NR, Step 5, Line 46, is greater than your Illinois exemption allowance on Schedule NR, Step 5, Line 50),
line 50 is the proration of the personal exemption (full exemption if single and under 65 years old is $2350) based on Illinois base income, your $2300, to total base income everywhere. it is likely that you will have a tax liability in Illinois.
here's a link to Illinois form NR
https://www2.illinois.gov/rev/forms/incometax/Documents/currentyear/individual/il-1040-schedule-nr.pdf