Lake Forest homebuyers are working with a $1,450,000 median price point, 245% above the national figure. Against the $258,000 median household income in the area, that's a 5.6x multiple.
At a 2.2% effective rate, Lake Forest property taxes add $2,658 to the monthly payment on the median home, $31,900 a year in total.
Illinois levies a state income tax on top of the $10,820/month this mortgage runs. Model your real after-tax take-home before deciding how much payment you can carry.
Lake Forest's cost of living index is 191, above the 100 national baseline. That's on top of the housing numbers above, not instead of them.
Lake Forest's median home price runs 392% higher than nearby Chicago: $295,000 there versus $1,450,000 here.