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

Sunnyvale

California
341
VS

Round Rock

Texas
122

Sunnyvale is 180% more expensive than Round Rock.

$3,065/mo ↑ 79%
Median Rent
$1,713/mo ↓ 44%
$181,862/yr ↑ 87%
Median Income
$97,187/yr ↓ 47%
$1,816,600 ↑ 373%
Home Value
$383,700 ↓ 79%
$3,016/mo ↑ 69%
Owner Costs
$1,781/mo ↓ 41%
153,455
Population
124,288

Tax Comparison

13.3%
Income Tax
0%
7.25%
State Sales Tax
6.25%
0.71%
Property Tax
1.6%

Affordability

20.2%
rent-to-income
Affordability
21.2%
rent-to-income

Detailed Comparison

When comparing Sunnyvale, CA and Round Rock, TX, the overall cost of living indices are 341 and 122 respectively (national median = 100). Rent is $1,352/month cheaper in Round Rock, saving renters about $16,224/year.

Median household income is $84,675/year higher in Sunnyvale. Home values also differ significantly — the median in Sunnyvale is $1,816,600 compared to $383,700 in Round Rock.

Texas has no state income tax, giving Round Rock residents a significant tax advantage over California's 13.3% rate.

Frequently Asked Questions

Sunnyvale vs Round Rock — common questions

Is Sunnyvale or Round Rock cheaper to live in?
Based on our cost index, Round Rock is cheaper to live in with an index of 122 compared to 341 (US average = 100).
What is the rent difference between Sunnyvale and Round Rock?
Median rent in Sunnyvale is $3,065/month and in Round Rock it's $1,713/month — a difference of $1,352/month.
Which city has higher income, Sunnyvale or Round Rock?
Median household income is $181,862 in Sunnyvale and $97,187 in Round Rock. Median household income is $84,675/year higher in Sunnyvale.
How do taxes compare between California and Texas?
California has 13.3% income tax, 7.25% sales tax, and 0.71% property tax. Texas has 0% income tax, 6.25% sales tax, and 1.6% property tax.
Should I move to Sunnyvale or Round Rock?
It depends on your priorities. Sunnyvale has a cost index of 341 with median rent of $3,065/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 Sunnyvale details → View Round Rock details →

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