Cost of Living: Round Rock, TX vs South Fulton, GA (2026)

Round Rock

Texas
122
VS

South Fulton

Georgia
103

Round Rock is 18% more expensive than South Fulton.

$1,713/mo ↑ 7%
Median Rent
$1,607/mo ↓ 6%
$97,187/yr ↑ 19%
Median Income
$81,798/yr ↓ 16%
$383,700 ↑ 42%
Home Value
$270,600 ↓ 29%
$1,781/mo ↑ 16%
Owner Costs
$1,541/mo ↓ 13%
124,288
Population
109,157

Tax Comparison

0%
Income Tax
5.49%
6.25%
State Sales Tax
4.0%
1.6%
Property Tax
0.92%

Affordability

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

Detailed Comparison

When comparing Round Rock, TX and South Fulton, GA, the overall cost of living indices are 122 and 103 respectively (national median = 100). Rent is $106/month cheaper in South Fulton, saving renters about $1,272/year.

Median household income is $15,389/year higher in Round Rock. Home values also differ significantly — the median in Round Rock is $383,700 compared to $270,600 in South Fulton.

Texas has no state income tax, giving Round Rock residents a significant tax advantage over Georgia's 5.49% rate.

Frequently Asked Questions

Round Rock vs South Fulton — common questions

Is Round Rock or South Fulton cheaper to live in?
Based on our cost index, South Fulton is cheaper to live in with an index of 103 compared to 122 (US average = 100).
What is the rent difference between Round Rock and South Fulton?
Median rent in Round Rock is $1,713/month and in South Fulton it's $1,607/month — a difference of $106/month.
Which city has higher income, Round Rock or South Fulton?
Median household income is $97,187 in Round Rock and $81,798 in South Fulton. Median household income is $15,389/year higher in Round Rock.
How do taxes compare between Texas and Georgia?
Texas has 0% income tax, 6.25% sales tax, and 1.6% property tax. Georgia has 5.49% income tax, 4.0% sales tax, and 0.92% property tax.
Should I move to Round Rock or South Fulton?
It depends on your priorities. Round Rock has a cost index of 122 with median rent of $1,713/mo, while South Fulton has a cost index of 103 with rent of $1,607/mo. Consider income potential, tax burden, and lifestyle preferences alongside raw cost data.
View Round Rock details → View South Fulton details →

More Comparisons

Other cost of living comparisons for Round Rock and South Fulton

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 South Fulton vs. Greeley South Fulton vs. Sparks South Fulton vs. Sugar Land South Fulton vs. Dearborn South Fulton vs. Santa Maria South Fulton vs. Riverview