Property tax by ZIP code in Connecticut
Enter a Connecticut ZIP and see the median property tax paid, median home value, and effective tax rate from the 2020–2024 American Community Survey — plus how it compares to the Connecticut state median.
Look up a Connecticut ZIP code
Enter a 5-digit Connecticut ZIP code above to see its property tax data.
ZIP doesn't have ACS data — typically because it's a PO-box-only ZIP, a single-business ZIP, or a small area where the Census suppresses small-sample estimates. Try a nearby ZIP.
ZIP isn't a Connecticut ZIP code. This page covers Connecticut only. Other states are launching state by state — check back, or use our state-by-state median page in the meantime.
Connecticut carries one of the highest effective property-tax rates in the country — around 1.81% of value statewide — and the structural reason is unusual: Connecticut abolished county government in 1960. Its 169 towns are the main units of local government and lean almost entirely on the property tax, with no county layer to spread the cost — so mill rates run high and vary sharply from town to town.
Enter a 5-digit Connecticut ZIP to see its median property tax, median home value, and effective rate from the US Census American Community Survey 2020–2024 vintage, plus how it compares to the Connecticut state and US national medians. The explainer below covers the 70% assessment ratio, the five-year revaluation cycle, the state circuit-breaker and veterans' exemptions, and the income-tax property-tax credit.
How Connecticut property tax works
Connecticut's towns and cities assess all property at a uniform 70% of fair market value, a ratio set statewide since 1974 — so a home worth $400,000 carries an assessed value of $280,000 before the town's mill rate applies. The town's assessor sets the value; the town's tax collector bills and collects. There is no county tax and no state property tax: the municipality is essentially the whole show.
To keep assessments current, state law requires each municipality to revalue all real property at least every five years; towns that miss the deadline forfeit a slice of state aid. Because mill rates are set town by town to fund local budgets — and there's no county government to absorb costs — the rate gap between a wealthy shoreline town and a struggling city can be large. (One quirk worth noting: the state caps the mill rate on motor vehicles at 32.46 mills, but that cap applies to cars, not homes.)
For relief, the state's Circuit Breaker program reduces tax for homeowners 65 and older or totally disabled, with a maximum credit of $1,250 for a married couple ($1,000 for a single filer) on a graduated income scale, and towns may add their own local elderly or disabled relief on top. Qualifying veterans receive at least a $1,000 assessed-value exemption. Separately, Connecticut's income tax offers a property-tax credit worth up to $300 (raised from $200 starting with the 2022 tax year). The state has no statewide homestead exemption. A 2025 budget proposal from the governor to raise the credit to $350 and broaden eligibility is a proposal, not law.
Why your actual bill differs
The numbers above describe a typical homeowner in this ZIP — not your specific bill. A few things move bills away from the median:
- Your town's mill rate. With 169 towns each setting their own rate and no county to share costs, two similar homes in different towns can owe very different amounts.
- When your town last revalued. On a five-year cycle, values can lag the market and then reset all at once — so a recent revaluation can push a bill above the ZIP median.
- Credits and exemptions. The state Circuit Breaker, local elderly/disabled relief, the veterans' exemption, and the income-tax property-tax credit each pull a qualifying owner's effective burden below the median.
Connecticut bills are municipal — there's no single statewide lookup. Many towns (for example, Hartford) use the state's property-tax guidance to direct residents to their local tax collector; participating towns post bills on the mytaxbill.org portal. Start with your town's tax collector.
Methodology
Data on this page comes from the US Census American Community Survey 5-year estimates, 2020–2024 vintage (released January 29, 2026), at the ZIP Code Tabulation Area (ZCTA) level. After filtering ZCTAs the Census suppresses for privacy or small-sample reasons, this page covers 269 Connecticut ZIPs.
Topcoding in Connecticut. The Census caps median property tax at $10,000, reporting anything higher as $10,001. It occurs in Connecticut's higher-value towns — concentrated in Fairfield County — where home values and mill rates combine to push the typical bill past the cap. For those, the figure shown is a floor and the rate is a conservative estimate.
See the full methodology page for source details (Census table IDs, the comparison-median rule, calculator formulas), how we handle topcoding across every state, and the refresh cadence.
Frequently asked questions
Why is the median tax in my ZIP different from what I pay?
Median is the middle of the distribution, not your bill. Connecticut assesses at 70% of market value, but each town sets its own mill rate with no county to share costs. Revaluation timing, the Circuit Breaker, local relief, and the veterans' exemption move qualifying owners from the median.
Why might my ZIP show $10,001 as the median tax?
That's the Census topcode for privacy. In Connecticut it appears in higher-value towns, especially Fairfield County; the true median there is at least $10,000 and the rate shown is conservative.
Where do I find my actual Connecticut property tax bill?
Through your town's tax collector — there's no statewide portal. Participating towns post bills on the mytaxbill.org portal; the state's property-tax page points residents to their local collector.
When does Connecticut data update on this page?
Annually, when the Census Bureau releases a new ACS 5-year vintage. The 2020–2024 vintage released January 29, 2026. The next vintage (2021–2025) typically follows the next year, though the Census has not yet posted its release date.
Why don't you cover other states yet?
State-by-state rollout. Each state needs its own context section (assessment method, exemptions, local taxing structure) to be genuinely useful. High-search-volume states are going live first.