Mortgage Calculator & Closing Costs: Naperville, IL
Mortgage payment estimates, closing cost breakdowns, and homebuying data for Naperville, Illinois.
Median Home Price
$485K
Population
150K
Avg Monthly Rent
$1,850
Property Tax Rate
2.07% *
* Property tax shown is the Illinois state average effective rate. Actual rates vary by county, city, and school district — check with your local assessor for exact rates in Naperville.
Naperville vs Illinois Median
The median home price in Naperville is $485,000, which is 80% above the Illinois state median of $270,000.
Mortgage Calculator — Naperville, IL
Pre-filled with Naperville median home price and Illinois tax/insurance rates. Adjust for your property.
Three down payment scenarios for a $485K home using Illinois's 2.07% tax rate and $1,900/yr insurance.
5% Down
$4,176/mo
Down: $24,250
Loan: $461K
P&I: $2,912
Tax: $837
Insurance: $158
PMI: $269
10% Down
$4,009/mo
Down: $48,500
Loan: $437K
P&I: $2,759
Tax: $837
Insurance: $158
PMI: $255
20% Down (No PMI)
$3,447/mo
Down: $97,000
Loan: $388K
P&I: $2,452
Tax: $837
Insurance: $158
Income needed (28% rule): $148K/year with 20% down, $172K/year with 10% down.
Rent vs Buy in Naperville
Rent
$1,850/mo
vs
Buy (10% down)
$4,009/mo
Price-to-rent ratio: 21.8 — At a ratio above 20, renting may be more economical in Naperville for shorter stays. Buying costs $2,159 more per month than renting, and it typically takes 5-7 years to break even on the transaction costs of buying.
The median home price in Naperville is $485,000, 80% above the Illinois state median of $270,000. With a population of 149,540, Naperville is a mid-size city where home prices reflect strong demand and local economic factors.
Property taxes in Illinois average 2.07% annually. This higher-than-average tax rate means a $485,000 home in Naperville would carry roughly $837/month in property taxes alone — plan accordingly. Homeowners insurance in Illinois runs approximately $1,900 per year. This is within the normal range nationally.
Average rent in Naperville is $1,850/month. With a price-to-rent ratio above 20, renting could be more economical in the short term — use our Rent vs Buy calculator to model your specific timeline.
Naperville is a higher-cost market. At $485K median, buyers need significant savings or strong income. Down payment assistance through Illinois's IHDA 1stHomeIllinois program becomes especially important.
Run a Rent vs Buy analysis
Compare total costs of renting vs buying in Naperville.