Boulder vs Seattle

Category-by-Category Breakdown

Index values shown. National average = 100. Lower is cheaper.

💰 Salary Equivalence

To maintain the same standard of living:

See exact take-home pay: Colorado salaries · Washington salaries

Living in Boulder vs Seattle

Housing is typically the biggest factor in any cost-of-living comparison. Boulder has a housing index of 230 while Seattle sits at 224 (national average = 100). The median home in Boulder costs $750,000 compared to $750,000 in Seattle, a difference of $0. Monthly rent follows a similar pattern: $2,300 in Boulder versus $2,300 in Seattle.

Groceries and everyday expenses show a narrower gap: Boulder scores 107 while Seattle scores 109.

Healthcare costs in Boulder (104) are lower than Seattle (109).

Median household income in Boulder is $73,123 compared to $97,185 in Seattle. When adjusted for cost of living, purchasing power is similar in both cities.

Relocating: Boulder vs Seattle

If you are considering a move between Boulder (index: 148) and Seattle (index: 152), the 3% cost difference has real implications for your budget. Boulder is the more affordable option, but the right choice depends on your income, career opportunities, and lifestyle priorities.

Housing budget reality: Using the 28% rule (spending no more than 28% of gross income on housing), the median household in Boulder can afford $1,706/month, while the median household in Seattle can afford $2,268/month. With median homes at $750,000 in Boulder versus $750,000 in Seattle, the higher-cost city presents significant affordability challenges.

Renting vs buying: At $2,300/month in Boulder and $2,300/month in Seattle, renters face similar costs in both cities. The rent-to-own ratio in each city determines whether renting or buying offers better value for your situation.

Income adjustment: A $75,000 salary goes about equally far in both cities. Before accepting a job in either city, use the salary equivalence data above to understand what you would need to earn to maintain your current standard of living.

Reading These Numbers: Boulder (148) vs Seattle (152)

The cost of living index uses 100 as the national average. Boulder at 148 is 48% above the US average, while Seattle at 152 is 52% above average. There is a meaningful cost gap between these two cities that affects day-to-day budgeting.

Boulder and Seattle land within 4 points of each other on the composite index (148 vs 152), so the overall cost picture is similar. Utilities shows the widest single-category margin at 94 versus 108, making it the area where residents will feel the most day-to-day price difference between Boulder and Seattle. Housing costs are comparable between the two metros, with Boulder at 230 and Seattle at 224 on the housing sub-index and median home prices of $750,000 and $750,000 respectively. Neither city is cheaper across the board: Boulder has an edge in groceries and utilities, while Seattle is more affordable for housing. Your actual savings depend on which categories consume the biggest share of your personal budget.

For renters: With median rents of $2,300/month in Boulder and $2,300/month in Seattle, the annual rent difference is approximately $0. Over a 5-year period, that compounds to $0 in savings by choosing the more affordable city.

For homebuyers: The $0 difference in median home prices between Boulder and Seattle translates to roughly $0 per month in mortgage payments at current rates. Factor this into your budget alongside property taxes and insurance, which also vary by location.

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