Cost of Living: Portland, OR vs Thornton, CO (2026)

Portland

Oregon
138
VS

Thornton

Colorado
138

Portland and Thornton have a similar cost of living.

$1,596/mo ↓ 12%
Median Rent
$1,810/mo ↑ 13%
$88,792/yr ↓ 12%
Median Income
$100,985/yr ↑ 14%
$557,600 ↑ 16%
Home Value
$482,200 ↓ 14%
$1,771/mo ↓ 7%
Owner Costs
$1,914/mo ↑ 8%
642,715
Population
142,878

Tax Comparison

9.9%
Income Tax
4.4%
0%
State Sales Tax
2.9%
0.93%
Property Tax
0.51%

Affordability

21.6%
rent-to-income
Affordability
21.5%
rent-to-income

Detailed Comparison

When comparing Portland, OR and Thornton, CO, the overall cost of living indices are 138 and 138 respectively (national median = 100). Rent is $214/month cheaper in Portland, saving renters about $2,568/year.

Median household income is $12,193/year higher in Thornton. Home values also differ significantly — the median in Portland is $557,600 compared to $482,200 in Thornton.

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

Frequently Asked Questions

Portland vs Thornton — common questions

Is Portland or Thornton cheaper to live in?
Based on our cost index, Thornton is cheaper to live in with an index of 138 compared to 138 (US average = 100).
What is the rent difference between Portland and Thornton?
Median rent in Portland is $1,596/month and in Thornton it's $1,810/month — a difference of $214/month.
Which city has higher income, Portland or Thornton?
Median household income is $88,792 in Portland and $100,985 in Thornton. Median household income is $12,193/year higher in Thornton.
How do taxes compare between Oregon and Colorado?
Oregon has 9.9% income tax, 0% sales tax, and 0.93% property tax. Colorado has 4.4% income tax, 2.9% sales tax, and 0.51% property tax.
Should I move to Portland or Thornton?
It depends on your priorities. Portland has a cost index of 138 with median rent of $1,596/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 Portland details → View Thornton details →

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