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Cost of Living: Boston, MA vs San Diego, CA

Wondering how far your dollar stretches in Boston compared to San Diego? Below we break down housing costs, rent, taxes, income, and quality of life using 2026 data so you can make an informed relocation or remote-work decision. Every number is computed from Census, BLS, and Zillow data specific to these two metro areas.

TL;DR

Boston cost-of-living index is 162 vs 163 for San Diego (US = 100). Median home: $680,000 vs $875,000. Median rent: $2,750/mo vs $2,195/mo.

Source: Census ACS · Zillow ZHVI/ZORI · BEA RPP, 2026

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Boston and San Diego have similar costs of living
COL Index: Boston 162 vs San Diego 163 (national avg = 100)
Written by Jere Salmisto, Founder & Quantitative Systems Builder, CalcFi·Reviewed by CalcFi Editorial·Last reviewed 2026-04-19

Boston vs San Diego — At a Glance

BostonMetricSan DiegoDifference
162Cost of Living Index163+0.6%
$680,000Median Home Price$875,000+28.7%
$2,750Median Monthly Rent$2,195-20.2%
$89,400Median Household Income$91,000+1.8%
1.1%Property Tax Rate0.7%-32.1%
3.3%Unemployment Rate3.8%+15.2%
32 minAverage Commute27 min-15.6%
32.6Median Age36.1+10.7%
4,920,000Metro Population3,340,000-32.1%

Data sourced from Census Bureau, BLS, Zillow, and ApartmentAdvisor (2024-2025). COL Index: 100 = national average.

Housing Comparison: Boston vs San Diego

Monthly mortgage assumes 6.5% interest, 30-year fixed, 20.0%down payment. PITI includes principal, interest, property tax, and homeowner's insurance.

Boston

Median Home Price$680,000
Down Payment (20.0%)$136,000
Loan Amount$544,000
Principal & Interest$3,438/mo
Property Tax$601/mo
Insurance$198/mo
Monthly PITI$4,237/mo

San Diego

Median Home Price$875,000
Down Payment (20.0%)$175,000
Loan Amount$700,000
Principal & Interest$4,424/mo
Property Tax$525/mo
Insurance$255/mo
Monthly PITI$5,205/mo

Rent & Affordability Ratios

Median Monthly Rent$2,750 vs $2,195 (-$555/mo)
Annual Rent Difference$6,660/yr more in Boston
Home Price-to-Income Ratio7.6x (Boston) vs 9.6x (San Diego)
Years to Save 20% Down (15% savings rate)10.1 yrs (Boston) vs 12.8 yrs (San Diego)

Buying a home in Boston costs $4,237/month (PITI) compared to $5,205/month in San Diego — a difference of $968/month or $11,616/year. The price-to-income ratio is 7.6x in Boston versus 9.6x in San Diego, suggesting Boston is relatively more affordable for homebuyers relative to local incomes. At a 15% savings rate, it takes 10.1 years to save a down payment in Boston compared to 12.8 years in San Diego.

Tax Comparison: Boston vs San Diego

Estimated on each city's median household income, single filer, standard deduction, 2025 rates.

Tax CategoryBostonSan Diego
Gross Income$89,400$91,000
State Income Tax$4,250$4,490
Federal Income Tax$11,117$11,469
FICA (SS + Medicare)$6,839$6,962
Property Tax (on median home)$7,208/yr$6,300/yr
State Sales Tax Rate6.3%7.2%
Total Tax Burden$22,206 (24.8%)$22,921 (25.2%)
Take-Home Pay$67,194$68,079

On median household income, total taxes (federal + state + FICA) come to $22,206 in Boston (24.8% effective) versus $22,921 in San Diego (25.2% effective). After taxes, take-home pay is $67,194 in Boston and $68,079 in San Diego. Property taxes add $7,208/year on the median Boston home versus $6,300/year in San Diego.

Salary Equivalence: What Your Income Is Worth

A $89,400 salary in Boston equals
$89,952
in San Diego
A $91,000 salary in San Diego equals
$90,442
in Boston

These figures adjust for cost of living using the formula: adjusted = salary × (COL_destination / COL_origin). If you earn $89,400 in Boston (COL 162) and relocate to San Diego (COL 163), you would need $89,952 to maintain the same purchasing power. This means you would need a raise of $552 to maintain the same standard of living in San Diego.

Quality of Life: Boston vs San Diego

Average Commute
32 min
Boston
27 min
San Diego
5 min longer in Boston
Unemployment Rate
3.3%
Boston
3.8%
San Diego
Boston lower
Metro Population
4.9M
Boston
3.3M
San Diego
Boston is 1.5x larger

Beyond costs, quality of life matters. The average commute in Boston is 32 minutes versus 27 minutes in San Diego, a difference of 5 minutes each way. Boston's lower unemployment rate of 3.3% versus 3.8% suggests a stronger job market. San Diego skews slightly older with a median age of 36.1 vs 32.6 in Boston.

Other Cost of Living Comparisons

Boston vs New YorkCOL 162 vs 187Boston vs Los AngelesCOL 162 vs 173Boston vs ChicagoCOL 162 vs 114New York vs San DiegoCOL 187 vs 163Los Angeles vs San DiegoCOL 173 vs 163Chicago vs San DiegoCOL 114 vs 163

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Frequently Asked Questions

Is Boston or San Diego more expensive?

Boston and San Diego have very similar costs of living, with COL indices of 162 and 163 respectively (national average = 100). Day-to-day expenses, housing, and taxes are comparable between the two metro areas.

How much more does housing cost in San Diego vs Boston?

The median home price in San Diego is $875,000, which is $195,000 more than Boston's median of $680,000. Monthly rent follows a similar pattern: $2,195/month in San Diego vs $2,750/month in Boston, a difference of $555/month or $6,660/year.

What salary do I need in San Diego to match my Boston income?

To maintain the same standard of living, a $89,400 salary in Boston is equivalent to $89,952 in San Diego. This is based on the cost of living index ratio: Boston's COL index of 162 vs San Diego's 163. Conversely, $91,000 in San Diego equals $90,442 in Boston.

Which city has lower taxes, Boston or San Diego?

On a median household income, the combined federal, state, and FICA tax burden is $22,206 (24.8% effective rate) in Boston vs $22,921 (25.2% effective rate) in San Diego. Property taxes on the median home are $7,208/year in Boston (1.1% rate) vs $6,300/year in San Diego (0.7% rate). Sales tax rates are 6.3% in Massachusetts and 7.2% in California.

What is the median household income in Boston and San Diego?

Boston median household income: $89,400/yr. San Diego median household income: $91,000/yr (Census ACS).

How does rent compare in Boston vs San Diego?

Median monthly rent: $2,750 in Boston vs $2,195 in San Diego. Annualized that is $33,000 vs $26,340.

Which city is better for remote workers, Boston or San Diego?

Boston offers a lower cost of living (index 162 vs 163), which lets remote-workers keeping a coastal salary stretch further. San Diego typically wins on amenities and labor-market depth.

Where does the data on this comparison come from?

Boston and San Diego numbers are pulled from Zillow ZHVI/ZORI (home values, rent), the U.S. Census Bureau ACS (income, demographics), and BEA RPP (cost-of-living index). Each value is timestamped on the page.

How often is this Boston vs San Diego comparison updated?

Source feeds (Zillow, Freddie Mac PMMS, Census ACS, BEA RPP) are refreshed on their native cadence. Page caches revalidate every 24 hours via Next.js ISR.

Does this comparison replace tax or financial advice?

No. The Boston vs San Diego cost-of-living page is educational reference using public data and standard formulas. It is not personalized tax, legal, or investment advice. Consult a licensed professional for material decisions.

Explore More

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Sources & Citations

  1. Zillow Research — ZHVI (home values) & ZORI (observed rent index) — zillow.com/research/data
  2. U.S. Census Bureau — American Community Survey (ACS) 5-year estimates — census.gov/acs
  3. Bureau of Economic Analysis — Regional Price Parities by state and MSA — bea.gov/rpp
  4. Tax Foundation — effective state and local tax rates — taxfoundation.org
  5. Freddie Mac PMMS — weekly national average mortgage rates — freddiemac.com/pmms
  6. Internal Revenue Service — federal income tax brackets and standard deduction — irs.gov
  7. U.S. Bureau of Labor Statistics — unemployment and wage statistics — bls.gov
Methodology & Assumptions

Home prices use Zillow Home Value Index (ZHVI)[1]; rents use Zillow Observed Rent Index (ZORI)[1]. Median household income comes from the Census ACS 5-year estimates[2].

COL indices use the BEA Regional Price Parity methodology[3], normalized so 100 = national average.

Property tax rates are effective rates from the Tax Foundation[4], expressed as % of owner-occupied home value. Mortgage estimates assume 6.5% fixed rate[5], 30-year term, 20.0% down, $1,800/yr homeowners insurance.

Federal tax calculations[6] assume single filer, standard deduction. State tax uses the top marginal rate times taxable income after the state standard deduction. FICA = 6.2% Social Security (up to wage base) + 1.45% Medicare.

Salary equivalence uses adjusted = salary × (COL_destination / COL_origin). This captures cost-of-living shift but not state income tax differences.

Unemployment figures are the most recent monthly MSA-level readings from the BLS LAUS series[7].

Last reviewed is computed from the maximum retrievedAt across every source this page consumes.

City data from Census Bureau[2], BLS[7], and Zillow[1] (2024-2025). Tax calculations use 2025 IRS rates[6], single filer, standard deduction. Mortgage estimates assume 6.5% PMMS rate[5], 30-year term, 20.0% down. COL Index: 100 = national average[3]. Last reviewed 2026-04-19.