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

Phoenix

Arizona
109
VS

Round Rock

Texas
122

Phoenix is 11% cheaper than Round Rock.

$1,458/mo ↓ 15%
Median Rent
$1,713/mo ↑ 17%
$77,041/yr ↓ 21%
Median Income
$97,187/yr ↑ 26%
$381,900 ≈ Same
Home Value
$383,700 ≈ Same
$1,430/mo ↓ 20%
Owner Costs
$1,781/mo ↑ 25%
1,624,832
Population
124,288

Tax Comparison

2.5%
Income Tax
0%
5.6%
State Sales Tax
6.25%
0.62%
Property Tax
1.6%

Affordability

22.7%
rent-to-income
Affordability
21.2%
rent-to-income

Detailed Comparison

When comparing Phoenix, AZ and Round Rock, TX, the overall cost of living indices are 109 and 122 respectively (national median = 100). Rent is $255/month cheaper in Phoenix, saving renters about $3,060/year.

Median household income is $20,146/year higher in Round Rock. Home values also differ significantly — the median in Phoenix is $381,900 compared to $383,700 in Round Rock.

Texas has no state income tax, giving Round Rock residents a significant tax advantage over Arizona's 2.5% rate.

Frequently Asked Questions

Phoenix vs Round Rock — common questions

Is Phoenix or Round Rock cheaper to live in?
Based on our cost index, Phoenix is cheaper to live in with an index of 109 compared to 122 (US average = 100).
What is the rent difference between Phoenix and Round Rock?
Median rent in Phoenix is $1,458/month and in Round Rock it's $1,713/month — a difference of $255/month.
Which city has higher income, Phoenix or Round Rock?
Median household income is $77,041 in Phoenix and $97,187 in Round Rock. Median household income is $20,146/year higher in Round Rock.
How do taxes compare between Arizona and Texas?
Arizona has 2.5% income tax, 5.6% sales tax, and 0.62% property tax. Texas has 0% income tax, 6.25% sales tax, and 1.6% property tax.
Should I move to Phoenix or Round Rock?
It depends on your priorities. Phoenix has a cost index of 109 with median rent of $1,458/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 Phoenix details → View Round Rock details →

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