Composite Index
148.4
US average = 100.0
Massachusetts (MA) | Composite 148.4
Massachusetts sits at 148.4 on the 2026 C2ER cost of living index, the second-highest in the continental US after California. Housing is the dominant driver at 210.5 (more than double the national average). The 2023 Fair Share Amendment added a 4 percent surtax on income above $1 million on top of the flat 5 percent state income tax. Boston metro carries the cost; outside Greater Boston, the state runs closer to (still above) the US average.
Composite Index
148.4
US average = 100.0
Median Home
$598,700
2BR rent $2,280/mo
Median Income
$89,645
Household, Census ACS
Category breakdown
| Category | MA index | National avg | Difference |
|---|---|---|---|
| Housing | 210.5 | 100.0 | 110.5% |
| Groceries | 107.5 | 100.0 | 7.5% |
| Utilities | 138.5 | 100.0 | 38.5% |
| Transportation | 112.8 | 100.0 | 12.8% |
| Healthcare | 118.2 | 100.0 | 18.2% |
| Miscellaneous | 117.2 | 100.0 | 17.2% |
Sources: BEA Regional Price Parities, C2ER Cost of Living Index, Census ACS 5-year (median income, home value), Massachusetts Department of Revenue (income and sales tax), EIA (electricity rates), KFF (uninsured rate), Zillow ZHVI, Massachusetts Comptroller.
Pros / offsets
Strong wages. Median household income $89,645 is among the highest in the country, well above the US median. Boston metro tech, biotech, finance, and academic salaries cluster with the Bay Area and Seattle. BLS OEWS shows median wages in technical and finance occupations 30-45 percent above the national median.
Universal healthcare access. Uninsured rate 2.9 percent per KFF, lowest in the country. The 2006 Massachusetts health insurance reform (which predated and modelled the ACA) created a high-functioning marketplace with mandate-driven near-universal coverage. The state has not let the system erode.
Excellent education. Massachusetts public schools rank consistently #1 or #2 nationally on NAEP testing. Per-pupil spending is high (third-highest in the country) and the state has historically had strong teacher salaries and rigorous standards. For families, the schools are a real (and partly priced-in) reason to absorb the cost.
Flat income tax structure (mostly). Outside the 4 percent millionaire surtax, the state income tax is a flat 5 percent. No graduated brackets to navigate; the Department of Revenue forms are simple. Long-term capital gains receive standard 5 percent treatment.
Cons / drivers
Boston housing is the dominant cost driver. Housing sub-index 210.5 statewide, more than double the US average. Median home statewide $598,700; Boston-Cambridge-Newton MSA median runs $720,000-plus per Zillow ZHVI. Greater Boston has been chronically supply-constrained for decades; the MBTA Communities Law passed in 2021 attempted to force suburban multifamily zoning but adoption has been slow.
4 percent surtax on income above $1 million. The 2023 Fair Share Amendment (the so-called millionaire's tax) added a 4 percent surtax on individual income above $1 million, on top of the flat 5 percent. The effective top marginal is 9 percent. For founders, senior executives, and equity-heavy compensation cases, this is material. The threshold is indexed annually for inflation.
Utilities are expensive. Utilities sub-index 138.5. Average residential electricity rate 28.58 cents per kWh per EIA, third-highest in the continental US after California and Connecticut. Winter heating costs are substantial because of cold New England winters. Average residential bill in MA exceeds $185 per month.
Property tax above average but not extreme. Effective rate 1.12 percent per the Tax Foundation. On the $598,700 median home, the typical annual bill exceeds $6,700. Proposition 2 1/2 (enacted 1980) caps total municipal tax levy growth at 2.5 percent per year, which constrains property-tax escalation but also constrains municipal budgets in slow-growth communities.
Tax + benefit signals
State income tax
5% + 4% surtax >$1M
Graduated or flat
Property tax effective
1.12%
Of assessed value, annual
Sales tax (state)
6.25%
Local can add 1-4% more
Uninsured rate
2.9%
Medicaid: expanded
Metro variation
Massachusetts state composite 148.4 averages substantial regional variation:
Boston-Cambridge-Newton: Roughly 165-185 on the Regional Price Parity scale. Median home in Boston MSA $720,000-plus. Cambridge, Newton, Brookline, and the Boston-proper neighborhoods of Back Bay, Beacon Hill, and the South End regularly exceed $1.4 million for single-family detached.
Worcester: Roughly 115-125. Median home Worcester MSA around $425,000. Forty miles west of Boston with commuter rail access (MBTA Worcester Line). Substantially cheaper than Boston while still expensive by national standards.
Springfield: Roughly 100-110. Median home around $310,000. Western Massachusetts industrial center, anchored by MassMutual and Baystate Health. Cheapest major Massachusetts metro by housing.
Cape Cod / South Coast: Roughly 125-145. Median home around $625,000 (year-round) with seasonal vacation-home demand pushing waterfront pricing to $1.5 million-plus. Hyannis, Falmouth, and Sandwich anchor the year-round economy.
Berkshires (Pittsfield, North Adams, Williamstown): Roughly 95-105. Median home around $325,000. Cultural-tourism economy (MASS MoCA, Tanglewood, Williams College). The cheapest part of the state and increasingly a retirement and remote-work destination.
North Shore (Salem, Beverly, Marblehead): Roughly 130-145. Boston commuter belt with substantial historic-residential premium.
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