Aurora vs Seattle Cost of Living
Seattle is approximately 12.4% more expensive than Aurora. See salary equivalence, taxes, and side-by-side breakdown.
Aurora, CO
Seattle, WA
| Salary in Aurora | Equivalent in Seattle | Difference |
|---|---|---|
| $50,000 | $56,200 | +$6,200 (+12.4%) |
| $75,000 | $84,300 | +$9,300 (+12.4%) |
| $100,000 | $112,400 | +$12,400 (+12.4%) |
| $150,000 | $168,600 | +$18,600 (+12.4%) |
| $200,000 | $224,800 | +$24,800 (+12.4%) |
Seattle costs about 12% more day to day, but Seattle has no state income tax while Colorado does — which can reverse the comparison once you look at take-home rather than sticker prices.
Housing does most of the damage
Housing is the reason two metros differ at all. Everything else — groceries, a haircut, a phone plan — varies far less than rent does. A one-bedroom runs about $1,450 a month in Aurora and $2,100 in Seattle — $650 a month apart, or $7,800 a year.
If you plan to buy rather than rent, the numbers move further apart: median prices of $450,000 and $830,000 mean a difference of about $76,000 in up-front cash at 20% down, plus whatever the property tax spread between Colorado and Washington adds annually.
The price-to-rent ratios diverge enough to change the buy-versus-rent answer: about 26 in Aurora versus 33 in Seattle. Under about 15 the math favours owning; over about 20 it favours renting and putting the down payment to work elsewhere. Which means the right answer can genuinely be to buy in one and rent in the other.
Taxes the index leaves out
Income tax is the variable the index ignores, and here it is decisive: Washington charges none while Colorado does. Budget $4,000–$8,000 a year of difference on a $100,000 salary before comparing rents.
The offset is rarely free, though. States without an income tax usually recover it elsewhere — property tax rates in Washington and sales tax are the usual places to look. If you plan to buy rather than rent, run the property tax number before assuming the no-income-tax state is cheaper.
Getting around
Aurora is served by limited transit; Seattle is workable without a car in many neighborhoods.
Work, weather, and what else is different
Aurora is a large metro of about 3.0M and growing steadily; Seattle is a large metro of about 4.0M and growing steadily.
Both metros have real employment in healthcare and logistics, which matters if you want to move without changing careers — your experience is legible to employers in both. Aurora also leans on aerospace/defense, with employers like Buckley Space Force Base and UCHealth/Anschutz Medical Campus. Seattle leans on technology and aerospace, with Amazon and Microsoft (Redmond).
Climate belongs in the comparison, not as a footnote. Aurora: Semi-arid high plains: January highs near 45°F/lows 19°F, July highs near 88°F/lows 59°F, low humidity with over 300 sunny days. Seattle: Marine climate with mild wet winters near 37°F lows and dry mild summers with July highs near 76°F.
Part of the Denver-Aurora-Lakewood MSA but with meaningfully lower housing costs than Denver proper; Colorado's flat state income tax is 4.4% with no city add-on (Denver-area cities do levy small flat monthly occupational taxes, not percentage income tax). No Washington state income tax, a rarity for a major tech hub, though sales tax and housing costs are among the highest in the country.
The index behind the headline ratio is BEA Regional Price Parity data; rents and home prices are market figures, and tax rates are as published by each state and city. How these are compiled and updated.
Related tools
Paycheck calculator — take-home after federal, state and local tax. Salary calculator — hourly and annual conversion. Mortgage calculator — what a home in either metro actually costs monthly. Guide: the true cost of relocating.