Cost of Living: San Antonio, TX vs Thornton, CO (2026)

San Antonio

Texas
82
VS

Thornton

Colorado
138

San Antonio is 41% cheaper than Thornton.

$1,258/mo ↓ 30%
Median Rent
$1,810/mo ↑ 44%
$62,917/yr ↓ 38%
Median Income
$100,985/yr ↑ 61%
$219,700 ↓ 54%
Home Value
$482,200 ↑ 119%
$1,235/mo ↓ 35%
Owner Costs
$1,914/mo ↑ 55%
1,458,954
Population
142,878

Tax Comparison

0%
Income Tax
4.4%
6.25%
State Sales Tax
2.9%
1.6%
Property Tax
0.51%

Affordability

24.0%
rent-to-income
Affordability
21.5%
rent-to-income

Detailed Comparison

When comparing San Antonio, TX and Thornton, CO, the overall cost of living indices are 82 and 138 respectively (national median = 100). Rent is $552/month cheaper in San Antonio, saving renters about $6,624/year.

Median household income is $38,068/year higher in Thornton. Home values also differ significantly — the median in San Antonio is $219,700 compared to $482,200 in Thornton.

Texas has no state income tax, giving San Antonio residents a significant tax advantage over Colorado's 4.4% rate.

Frequently Asked Questions

San Antonio vs Thornton — common questions

Is San Antonio or Thornton cheaper to live in?
Based on our cost index, San Antonio is cheaper to live in with an index of 82 compared to 138 (US average = 100).
What is the rent difference between San Antonio and Thornton?
Median rent in San Antonio is $1,258/month and in Thornton it's $1,810/month — a difference of $552/month.
Which city has higher income, San Antonio or Thornton?
Median household income is $62,917 in San Antonio and $100,985 in Thornton. Median household income is $38,068/year higher in Thornton.
How do taxes compare between Texas and Colorado?
Texas has 0% income tax, 6.25% sales tax, and 1.6% property tax. Colorado has 4.4% income tax, 2.9% sales tax, and 0.51% property tax.
Should I move to San Antonio or Thornton?
It depends on your priorities. San Antonio has a cost index of 82 with median rent of $1,258/mo, while Thornton has a cost index of 138 with rent of $1,810/mo. Consider income potential, tax burden, and lifestyle preferences alongside raw cost data.
View San Antonio details → View Thornton details →

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