Cambridge vs Boulder

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: Massachusetts salaries · Colorado salaries

Living in Cambridge vs Boulder

Housing is typically the biggest factor in any cost-of-living comparison. Cambridge has a housing index of 280 while Boulder sits at 230 (national average = 100). The median home in Cambridge costs $890,000 compared to $750,000 in Boulder, a difference of $140,000. Monthly rent follows a similar pattern: $3,100 in Cambridge versus $2,300 in Boulder.

Groceries and everyday expenses show a narrower gap: Cambridge scores 110 while Boulder scores 107.

Healthcare costs in Cambridge (118) are higher than Boulder (104).

Median household income in Cambridge is $103,154 compared to $73,123 in Boulder. When adjusted for cost of living, income goes further in Boulder.

Relocating: Cambridge vs Boulder

If you are considering a move between Cambridge (index: 178) and Boulder (index: 148), the 17% 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 Cambridge can afford $2,407/month, while the median household in Boulder can afford $1,706/month. With median homes at $890,000 in Cambridge versus $750,000 in Boulder, the higher-cost city presents significant affordability challenges.

Renting vs buying: At $3,100/month in Cambridge and $2,300/month in Boulder, renters save significantly in Boulder. 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 significantly further in Boulder. 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: Cambridge (178) vs Boulder (148)

The cost of living index uses 100 as the national average. Cambridge at 178 is 78% above the US average, while Boulder at 148 is 48% above average. There is a meaningful cost gap between these two cities that affects day-to-day budgeting.

The overall index is a weighted average of housing (the largest component), groceries, utilities, transportation, and healthcare. Housing typically drives the biggest differences between cities. Even when two cities have similar overall indices, their category-level costs can vary significantly — one city might have expensive housing but cheap groceries, while another is the reverse. Check the category breakdown above for the full picture.

For renters: With median rents of $3,100/month in Cambridge and $2,300/month in Boulder, the annual rent difference is approximately $9,600. Over a 5-year period, that compounds to $48,000 in savings by choosing the more affordable city.

For homebuyers: The $140,000 difference in median home prices between Cambridge and Boulder translates to roughly $8,400 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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