Cost of Living: Round Rock, TX vs Springfield, IL (2026)

Round Rock

Texas
122
VS

Springfield

Illinois
61

Round Rock is 100% more expensive than Springfield.

$1,713/mo ↑ 81%
Median Rent
$945/mo ↓ 45%
$97,187/yr ↑ 48%
Median Income
$65,537/yr ↓ 33%
$383,700 ↑ 147%
Home Value
$155,200 ↓ 60%
$1,781/mo ↑ 83%
Owner Costs
$974/mo ↓ 45%
124,288
Population
113,714

Tax Comparison

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

Affordability

21.2%
rent-to-income
Affordability
17.3%
rent-to-income

Detailed Comparison

When comparing Round Rock, TX and Springfield, IL, the overall cost of living indices are 122 and 61 respectively (national median = 100). Rent is $768/month cheaper in Springfield, saving renters about $9,216/year.

Median household income is $31,650/year higher in Round Rock. Home values also differ significantly — the median in Round Rock is $383,700 compared to $155,200 in Springfield.

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

Frequently Asked Questions

Round Rock vs Springfield — common questions

Is Round Rock or Springfield cheaper to live in?
Based on our cost index, Springfield is cheaper to live in with an index of 61 compared to 122 (US average = 100).
What is the rent difference between Round Rock and Springfield?
Median rent in Round Rock is $1,713/month and in Springfield it's $945/month — a difference of $768/month.
Which city has higher income, Round Rock or Springfield?
Median household income is $97,187 in Round Rock and $65,537 in Springfield. Median household income is $31,650/year higher in Round Rock.
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 Round Rock or Springfield?
It depends on your priorities. Round Rock has a cost index of 122 with median rent of $1,713/mo, while Springfield has a cost index of 61 with rent of $945/mo. Consider income potential, tax burden, and lifestyle preferences alongside raw cost data.
View Round Rock details → View Springfield details →

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