Home prices in Norman run 47% below the national median: $222,000 versus $420,000. Relative to the $56,200 median household income here, the price-to-income ratio comes out to 4.0x.
Property taxes in Norman run 0.9% of assessed value, below the 1.1% national average. On the median home, that's $1,998 a year, or $167 added to the monthly payment.
Oklahoma levies a state income tax on top of the $1,410/month this mortgage runs. Model your real after-tax take-home before deciding how much payment you can carry.
Norman's cost of living index is 90, below the 100 national baseline. That's on top of the housing numbers above, not instead of them.
Norman's median home price runs 3% higher than nearby Oklahoma City: $215,000 there versus $222,000 here.