Cost of Living: Thornton, CO vs South Fulton, GA (2026)

Thornton

Colorado
138
VS

South Fulton

Georgia
103

Thornton is 34% more expensive than South Fulton.

$1,810/mo ↑ 13%
Median Rent
$1,607/mo ↓ 11%
$100,985/yr ↑ 23%
Median Income
$81,798/yr ↓ 19%
$482,200 ↑ 78%
Home Value
$270,600 ↓ 44%
$1,914/mo ↑ 24%
Owner Costs
$1,541/mo ↓ 19%
142,878
Population
109,157

Tax Comparison

4.4%
Income Tax
5.49%
2.9%
State Sales Tax
4.0%
0.51%
Property Tax
0.92%

Affordability

21.5%
rent-to-income
Affordability
23.6%
rent-to-income

Detailed Comparison

When comparing Thornton, CO and South Fulton, GA, the overall cost of living indices are 138 and 103 respectively (national median = 100). Rent is $203/month cheaper in South Fulton, saving renters about $2,436/year.

Median household income is $19,187/year higher in Thornton. Home values also differ significantly — the median in Thornton is $482,200 compared to $270,600 in South Fulton.

Colorado has a lower income tax rate, making Thornton slightly more tax-friendly.

Frequently Asked Questions

Thornton vs South Fulton — common questions

Is Thornton 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 138 (US average = 100).
What is the rent difference between Thornton and South Fulton?
Median rent in Thornton is $1,810/month and in South Fulton it's $1,607/month — a difference of $203/month.
Which city has higher income, Thornton or South Fulton?
Median household income is $100,985 in Thornton and $81,798 in South Fulton. Median household income is $19,187/year higher in Thornton.
How do taxes compare between Colorado and Georgia?
Colorado has 4.4% income tax, 2.9% sales tax, and 0.51% property tax. Georgia has 5.49% income tax, 4.0% sales tax, and 0.92% property tax.
Should I move to Thornton or South Fulton?
It depends on your priorities. Thornton has a cost index of 138 with median rent of $1,810/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 Thornton details → View South Fulton details →

More Comparisons

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