Connecticut vs Hawaii
On $100,000 these two come out level once cost of living is counted — which the tax rates alone would never tell you.
Property tax is set by counties, not states. Inside Texas alone the rate varies six times over, so this is the single choice that changes the answer most.
Does it work everywhere in Hawaii?
in what the money buys · $134 over 10 years
You need 0.0% more for the move to break even.
Who worked this out, and what it is built on
I build and maintain every comparison on this site — 1275 state pairs so far, on the same engine that runs the tax calculators for all 50 states and 3,143 counties. This is not a template with two names swapped into it: Connecticut and Hawaii are run through the actual rules of each place, and if the numbers say the move is not worth it, that is what the page says.
Four sources, and one deliberate refusal. Federal figures from the IRS revenue procedure. State rates read one state at a time off each state’s own department of revenue. County property tax from the US Census Bureau. Cost of living from the Bureau of Economic Analysis Regional Price Parities, 2024 — and not from Numbeo or any other crowd-sourced index, because those are filled in by users, publish no methodology, and cannot be cited. That single choice is most of why the cost-of-living numbers here differ from everybody else’s.
When I get something wrong I publish the correction with the date and what it cost — including the two mistakes on these pages I found myself. Data last verified September 1, 2026.
Where to go from here
Almost nobody is choosing between exactly two places. These are the questions that usually come next, with the answer already attached so you can see which is worth opening.
Other moves involving Connecticut or Hawaii
States that sit near Hawaii on prices compared against Connecticut, and the mirror of that. The comparison you would run next.
- Connecticut vs District of Columbia— Connecticut by $778
- California vs Connecticut— Connecticut by $1,277
- Connecticut vs New Jersey— Connecticut by $4,863
- Florida vs Hawaii— Florida by $8,046
- Hawaii vs Oregon— Oregon by $298
- Colorado vs Hawaii— Colorado by $6,043
Each state on its own
The full detail behind each half of the comparison above.
The counties that decide it
Property tax is set by county, and the spread inside one state beats most state pairs.
- Windham County, Connecticut— 1.54%, the cheapest
- Hartford County, Connecticut— 2.13%, the dearest
- Maui County, Hawaii— 0.17%, the cheapest
- Hawaii County, Hawaii— 0.29%, the dearest
Similar in price to Connecticut
States that sit next to Connecticut on the price index — often the comparison people should have run.
- Massachusetts— 105.8 on prices
- Maryland— 105 on prices
- New Hampshire— 104.2 on prices
- Florida— 103.4 on prices
- Every Connecticut comparison— all 50
- Every Hawaii comparison— all 50
- The nine states with no income tax— and what they charge instead
On $100,000, Connecticut and Hawaii come out level — and the rates are nothing like level
Two states that finish in a dead heat on a measure built out of five taxes and a price index is not a boring result; it means several large differences are cancelling. On $100,000 with a $400,000 home the purchasing power is $65,692 in Connecticut and $65,679 in Hawaii — $13 apart, which on this salary is noise.
The parts are not level at all. State income tax is $3,925 against $5,796, property tax $7,198 against $1,137, and the price index 103.6 against 110. Any one of those quoted alone would look like a decisive argument for one side. Together they come to nothing, which means for this pair the money is genuinely not the deciding factor and you can choose on everything else.
Where the two sit nationally: Hawaii is the 2nd most expensive place to live of the 51 — the 50 states and the District of Columbia — and Connecticut is 10th. Housing, the component that moves most, is 117 against 125.3.
Grey columns are what a year of Connecticut and a year of Hawaii are worth in the same money. The bars between them are each thing that changes, in the order it changes: green adds, amber takes away.
Where the money actually goes, line by line
Five separate taxes, and on this pair property tax is the biggest single difference — $6,061 against $1,871 for the income tax everybody quotes:
Federal income tax — $13,170 either way. Identical, because it is federal. Any comparison that shows a difference here is wrong.
FICA — $7,650 either way. Also federal, also identical.
State income tax — $3,925 in Connecticut, $5,796 in Hawaii. A difference of $1,871.
Property tax — $7,198 in Connecticut, $1,137 in Hawaii on a $400,000 home, at each state's median local rate. This is bigger than the income tax difference, and it runs the other way — which is the whole reason the headline number disappoints.
Local income tax — zero on both sides. Both Connecticut and Hawaii keep income tax at the state level only, so the figures above are complete rather than approximations.
Total: $31,943 in Connecticut against $27,753 in Hawaii — 31.9% and 27.8% of gross.
And Hawaii housing costs 7.1% more
Comparison sites use a single crowd-sourced cost-of-living figure. This is the Bureau of Economic Analysis Regional Price Parity, official and broken into components — and on this pair the components tell a stranger story than the headline, starting with utilities.
Cheaper in Hawaii than ConnecticutDearer in Hawaii than Connecticut
Each bar is how far apart Connecticut and Hawaii are on that component, and which way. Housing almost always runs several times wider than everything else — which is why a single blended index tells you very little.
All items — 103.6 in Connecticut, 110 in Hawaii. A gap of 6.4 points.
Housing — 117 against 125.3. A gap of 8.3 points, 1.3× the headline gap. This is what people mean when they say somewhere is expensive.
Goods — 97.3 against 111.6, 14.3 points apart — wide for goods: across all 1,275 state pairs the median goods gap is 2.7 points against 24.9 for housing, so on this pair the shopping basket genuinely differs and not just the rent.
Utilities — 146.5 against 190.2. 43.7 points, the second widest component after housing on this pair, and large enough to matter to anyone heating or cooling a big house.
Which half of this reaches you depends on whether you buy. Renting, the real difference between Connecticut and Hawaii is $5,927 a year — property tax comes out of your side entirely, and what is left is the price level. Buying a $400,000 home it is $13. So renting is where the gap is widest here, by $5,914 — unusual, and it means buying erodes the advantage rather than compounding it.
The number to take into a salary negotiation: $100,024
This is the question people are actually asking and almost nobody answers: what would I need to earn in Hawaii to live exactly as well as I do on $100,000 in Connecticut?
$100,024. That is 0.0% more than you earn now. Anything less than $100,024 and the move costs you money however it is presented.
The dashed line is the salary you earn now. The solid line is what matches it in Hawaii. If the relationship were a simple multiplier the two would be parallel — they are not, because brackets, the Social Security ceiling and a property tax that does not move with income all bend it.
The obvious shortcut fails here, and by a measurable amount. Scaling your salary by the ratio of price levels — $100,000 × 110/103.6 — gives $106,178. The answer is $100,024, so the shortcut is $6,154 too high: brackets, the Social Security ceiling and a property tax that ignores income all bend the line the shortcut assumes is straight.
The figure belongs to the two states and your income. On $40,000 the match in Hawaii is $34,577, 13.6% below what you earn; on $250,000 it is $265,665, 6.3% above. The relationship bends by 19.8% across that range.
Over 10 years: $134
Ten years of a difference this small is still a small number: $134. Which is the point — on a horizon long enough for compounding to matter, this pair still does not separate on money.
At $13 a year of real difference, 10 years in Connecticut instead of Hawaii is worth $134 in today's purchasing power — before compounding anything you might invest it in.
The line starts below zero because moving costs about $15,000 and lands entirely in year one. It pays for itself inside the first year. That is the figure a per-year comparison hides.
And it is slower to arrive than the annual figure suggests. Reckoning $15,000 for removal, fees and the cost of selling — an assumption this page makes, not a figure from a source — at $13 a year it takes 1118.4 years to recover — so the annual figure only becomes yours from year 1120.
At three horizons: $40 over three years, $134 over 10, $402 over thirty — and the three-year figure does not clear the cost of getting there.
None of those figures contains the one variable that could overturn them: the same job rarely pays the same in Connecticut and Hawaii. That is what the $100,024 break-even above is for — it prices an offer instead of assuming the offer is identical.
Choosing the county matters more than choosing the state here
This comparison is worth $13 a year. Choosing where inside Connecticut to live is worth $2,367 a year on the same $400,000 home — 176.5 times as much.
Connecticut has 8 counties and the effective property tax rate runs from 1.54% in Windham County to 2.13% in Hartford County. Move to the wrong county in the better state and you have given back more than the move gained you, twice over.
Which reframes the question. Rather than "Connecticut or Hawaii", the decision that carries the money is which county inside Connecticut — and the answer is not visible on any comparison that stops at the state line. Set both in the calculator above and every figure on this page recomputes on your actual rates rather than two medians.
The same logic applies to the losing side: Hawaii has counties cheaper than the median used here too, and for a reader who is staying put, moving county at home may be the better version of this decision.
Where every number here comes from
Four sources, each read off the body that publishes it:
US Bureau of Economic Analysis — Regional Price Parities by State and Metro Area, 2024 (released 19 February 2026) — read 2026-09-08. https://www.bea.gov/data/prices-inflation/regional-price-parities-state-and-metro-area
IRS — Revenue Procedure for the tax year (federal brackets, standard deduction and FICA) — read 2026-09-02. https://www.irs.gov/
Each state's own department of revenue (state income tax rates and deductions), verified one state at a time — read 2026-09-02. https://estimatetax.net/sources/
US Census Bureau, American Community Survey (county effective property tax rates) — read 2026-08-31. https://data.census.gov/
The cost of living index is the part worth checking, because it is where comparison sites usually reach for something crowd-sourced. The Regional Price Parities are produced by the Bureau of Economic Analysis, cover every state and metro area, and are published with a methodology document. The figures here are the 2024 release and are not extrapolated forward.
And what this page does not model:
— The cost of living index is the BEA's Regional Price Parity for 2024, the most recent published. It is not extrapolated to the current year, and it is a state-wide average — inside a state, a metro area and a rural county differ by more than most state pairs do.
— Moving costs, state transfer taxes on buying a home, and the cost of selling the one you have are not included. On a short stay they can outweigh every annual difference on this page.
— Sales tax is not modelled. It is inside the BEA index — that is what a price parity measures — but it is not broken out separately here.
— The comparison assumes the same salary in both places unless you change it. In practice a job in a high-cost state usually pays more, which is exactly what the break-even figure is for.
— Health insurance, childcare and car insurance vary enormously by state and are only inside the index as averages. If any of the three is a large part of your budget, it deserves its own arithmetic.
Where to go next
Questions
- Is it cheaper to live in Connecticut or Hawaii?
- On $100,000 they come out level — $65,692 of purchasing power in Connecticut against $65,679 in Hawaii, a difference of $13 a year. That is unusual and worth knowing, because the headline rates are not level at all: state income tax is $3,925 against $5,796 and property tax $7,198 against $1,137. They cancel out.
- How much do I need to earn in Hawaii to match $100,000 in Connecticut?
- $100,024 — 0.0% more. That accounts for federal tax, FICA, state tax, property tax and the price level in each state.
- What are the taxes in Connecticut vs Hawaii?
- On $100,000: state income tax of $3,925 in Connecticut against $5,796 in Hawaii, and property tax of $7,198 against $1,137 on a $400,000 home at median county rates. Federal tax and FICA are identical in both — $13,170 and $7,650 — so any comparison showing a difference there is wrong.
- Does Hawaii really have lower property tax?
- That depends entirely on the county, which is why a state-level answer is not much use. Hawaii runs from 0.17% in Maui County to 0.29% in Hawaii County — 1.7 times, or $473 a year on a $400,000 home. The median is 0.28%.
- How much is the difference over 10 years?
- $134 in today's purchasing power, at $13 a year. That excludes moving and housing transaction costs, which land in year one and can outweigh everything else on a short stay.
- Where does your cost of living data come from?
- The Bureau of Economic Analysis Regional Price Parities for 2024, an official index covering every state and metro area with a published methodology. Not a crowd-sourced database — and it comes broken into housing, goods, utilities and services, which matters because housing moves several times more than anything else.