Houston is 54% more expensive than Rockford.
When comparing Houston, TX and Rockford, IL, the overall cost of living indices are 88 and 57 respectively (national median = 100). Rent is $359/month cheaper in Rockford, saving renters about $4,308/year.
Median household income is $9,566/year higher in Houston. Home values also differ significantly — the median in Houston is $253,400 compared to $120,900 in Rockford.
Texas has no state income tax, giving Houston residents a significant tax advantage over Illinois's 4.95% rate.
Houston vs Rockford — common questions
Other cost of living comparisons for Houston and Rockford