Buyers Closing Cost Averages for Illinois
The survey is done yearly by Bankrate and Illinois ranks pretty well against other states for costs. The average costs for the loan origination was $1080 for the mortgage portion and $1000 for title charges, etc. The total would be $2079.
This should give you at least a good rough estimate that would be needed for closing or to double check your costs against your
Good Faith Estimate (GFE) from your lender.