Cost of Living: Killeen, TX vs Naperville, IL (2026)

Killeen

Texas
75
VS

Naperville

Illinois
147

Killeen is 49% cheaper than Naperville.

$1,147/mo ↓ 38%
Median Rent
$1,852/mo ↑ 61%
$58,339/yr ↓ 61%
Median Income
$150,937/yr ↑ 159%
$196,000 ↓ 62%
Home Value
$509,900 ↑ 160%
$1,176/mo ↓ 46%
Owner Costs
$2,161/mo ↑ 84%
156,144
Population
149,424

Tax Comparison

0%
Income Tax
4.95%
6.25%
State Sales Tax
6.25%
1.6%
Property Tax
2.07%

Affordability

23.6%
rent-to-income
Affordability
14.7%
rent-to-income

Detailed Comparison

When comparing Killeen, TX and Naperville, IL, the overall cost of living indices are 75 and 147 respectively (national median = 100). Rent is $705/month cheaper in Killeen, saving renters about $8,460/year.

Median household income is $92,598/year higher in Naperville. Home values also differ significantly — the median in Killeen is $196,000 compared to $509,900 in Naperville.

Texas has no state income tax, giving Killeen residents a significant tax advantage over Illinois's 4.95% rate.

Frequently Asked Questions

Killeen vs Naperville — common questions

Is Killeen or Naperville cheaper to live in?
Based on our cost index, Killeen is cheaper to live in with an index of 75 compared to 147 (US average = 100).
What is the rent difference between Killeen and Naperville?
Median rent in Killeen is $1,147/month and in Naperville it's $1,852/month — a difference of $705/month.
Which city has higher income, Killeen or Naperville?
Median household income is $58,339 in Killeen and $150,937 in Naperville. Median household income is $92,598/year higher in Naperville.
How do taxes compare between Texas and Illinois?
Texas has 0% income tax, 6.25% sales tax, and 1.6% property tax. Illinois has 4.95% income tax, 6.25% sales tax, and 2.07% property tax.
Should I move to Killeen or Naperville?
It depends on your priorities. Killeen has a cost index of 75 with median rent of $1,147/mo, while Naperville has a cost index of 147 with rent of $1,852/mo. Consider income potential, tax burden, and lifestyle preferences alongside raw cost data.
View Killeen details → View Naperville details →

More Comparisons

Other cost of living comparisons for Killeen and Naperville

Killeen vs. Lakewood Killeen vs. Kansas City Killeen vs. Macon Killeen vs. Springfield Killeen vs. Alexandria Killeen vs. Sunnyvale Naperville vs. Surprise Naperville vs. Pasadena Naperville vs. Joliet Naperville vs. Mesquite Naperville vs. Jackson Naperville vs. Pomona