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

Killeen

Texas
75
VS

Round Rock

Texas
122

Killeen is 39% cheaper than Round Rock.

$1,147/mo ↓ 33%
Median Rent
$1,713/mo ↑ 49%
$58,339/yr ↓ 40%
Median Income
$97,187/yr ↑ 67%
$196,000 ↓ 49%
Home Value
$383,700 ↑ 96%
$1,176/mo ↓ 34%
Owner Costs
$1,781/mo ↑ 51%
156,144
Population
124,288

Tax Comparison

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

Affordability

23.6%
rent-to-income
Affordability
21.2%
rent-to-income

Detailed Comparison

When comparing Killeen, TX and Round Rock, TX, the overall cost of living indices are 75 and 122 respectively (national median = 100). Rent is $566/month cheaper in Killeen, saving renters about $6,792/year.

Median household income is $38,848/year higher in Round Rock. Home values also differ significantly — the median in Killeen is $196,000 compared to $383,700 in Round Rock.

Both cities share the same state tax structure since they are in Texas.

Frequently Asked Questions

Killeen vs Round Rock — common questions

Is Killeen or Round Rock cheaper to live in?
Based on our cost index, Killeen is cheaper to live in with an index of 75 compared to 122 (US average = 100).
What is the rent difference between Killeen and Round Rock?
Median rent in Killeen is $1,147/month and in Round Rock it's $1,713/month — a difference of $566/month.
Which city has higher income, Killeen or Round Rock?
Median household income is $58,339 in Killeen and $97,187 in Round Rock. Median household income is $38,848/year higher in Round Rock.
How do taxes compare between Texas and Texas?
Both cities are in Texas and share the same state tax rates: 0% income tax, 6.25% sales tax, and 1.6% property tax.
Should I move to Killeen or Round Rock?
It depends on your priorities. Killeen has a cost index of 75 with median rent of $1,147/mo, while Round Rock has a cost index of 122 with rent of $1,713/mo. Consider income potential, tax burden, and lifestyle preferences alongside raw cost data.
View Killeen details → View Round Rock details →

More Comparisons

Other cost of living comparisons for Killeen and Round Rock

Killeen vs. Lakewood Killeen vs. Kansas City Killeen vs. Macon Killeen vs. Springfield Killeen vs. Alexandria Killeen vs. Sunnyvale Round Rock vs. Vallejo Round Rock vs. Concord Round Rock vs. Meridian Round Rock vs. Arvada Round Rock vs. Palm Bay Round Rock vs. Clovis