Cost of Living: Sioux Falls, SD vs Round Rock, TX (2026)

Sioux Falls

South Dakota
78
VS

Round Rock

Texas
122

Sioux Falls is 36% cheaper than Round Rock.

$993/mo ↓ 42%
Median Rent
$1,713/mo ↑ 73%
$74,714/yr ↓ 23%
Median Income
$97,187/yr ↑ 30%
$271,400 ↓ 29%
Home Value
$383,700 ↑ 41%
$1,122/mo ↓ 37%
Owner Costs
$1,781/mo ↑ 59%
197,642
Population
124,288

Tax Comparison

0%
Income Tax
0%
4.2%
State Sales Tax
6.25%
1.28%
Property Tax
1.6%

Affordability

15.9%
rent-to-income
Affordability
21.2%
rent-to-income

Detailed Comparison

When comparing Sioux Falls, SD and Round Rock, TX, the overall cost of living indices are 78 and 122 respectively (national median = 100). Rent is $720/month cheaper in Sioux Falls, saving renters about $8,640/year.

Median household income is $22,473/year higher in Round Rock. Home values also differ significantly — the median in Sioux Falls is $271,400 compared to $383,700 in Round Rock.

Frequently Asked Questions

Sioux Falls vs Round Rock — common questions

Is Sioux Falls or Round Rock cheaper to live in?
Based on our cost index, Sioux Falls is cheaper to live in with an index of 78 compared to 122 (US average = 100).
What is the rent difference between Sioux Falls and Round Rock?
Median rent in Sioux Falls is $993/month and in Round Rock it's $1,713/month — a difference of $720/month.
Which city has higher income, Sioux Falls or Round Rock?
Median household income is $74,714 in Sioux Falls and $97,187 in Round Rock. Median household income is $22,473/year higher in Round Rock.
How do taxes compare between South Dakota and Texas?
South Dakota has 0% income tax, 4.2% sales tax, and 1.28% property tax. Texas has 0% income tax, 6.25% sales tax, and 1.6% property tax.
Should I move to Sioux Falls or Round Rock?
It depends on your priorities. Sioux Falls has a cost index of 78 with median rent of $993/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 Sioux Falls details → View Round Rock details →

More Comparisons

Other cost of living comparisons for Sioux Falls and Round Rock

Sioux Falls vs. Grand Rapids Sioux Falls vs. Overland Park Sioux Falls vs. Montgomery Sioux Falls vs. Huntington Beach Sioux Falls vs. Grand Prairie Sioux Falls vs. Peoria 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