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County tax profile · 2026 · Census ACS + IRS data

Property Tax & Income in St. Lawrence County, New York

St. Lawrence County has an effective property tax rate of 2.33%. On the median home value of $121,900, that's roughly $2,844 per year. Median household income is $62,850.

Effective Property Tax Rate1
2.33%
median tax $2,844 ÷ median home $121,900
Median Home Value1
$121,900
owner-occupied
Median Household Income1
$62,850
per-capita $33,177
Est. Annual Tax on Median Home1
$2,844
at 2.33% effective rate

What you'll pay, at a glance

Property taxes are the largest local tax most homeowners pay. The effective rate measures the real tax bill as a share of home value — a more useful number than the nominal “mill rate,” because assessment practices vary county to county.

MetricSt. Lawrence CountyNew York (state context)
Effective property tax rate12.33%2.04%
Median home value1$121,900—
State income tax3top rate 10.90%top rate 10.90%
State sales tax38.54% combined8.54% combined

How this is calculated

The effective property tax rate is the median real-estate tax bill divided by the median home value — both for owner-occupied homes, from the U.S. Census Bureau's American Community Survey (ACS 5-year estimates)1. Median income is also from the ACS1. Federal and state income-tax figures use IRS2 and Tax Foundation3 data.

About St. Lawrence County, NY

In St. Lawrence County, the median home value of $121,900 is well below what buyers face in many parts of New York, but the tax rate works against that advantage. At 2.333%, the county's effective rate sits above the statewide median of 2.040% and ranks 16th among New York's 62 counties. The result is a median annual property tax bill of $2,844 — a figure that eats into the savings from lower purchase prices. Households earning the median income of $62,850 would devote roughly 4.5% of that to property taxes alone. The gap widens against the national median rate of 0.794%, meaning buyers in Potsdam or the surrounding towns pay far more per dollar of home value than the average American. Affordability here depends less on sticker price than on carrying costs.

Frequently asked questions

What is the property tax rate in St. Lawrence County, NY?
The effective rate is 2.33% — meaning the median tax bill equals about 2.33% of the median home value.
How much are property taxes on a median home?
On the median home ($121,900), the estimated annual bill is about $2,844.
Is St. Lawrence County's rate high or low?
Compare it to the state median of 2.04% and the national average near 1.1%.
How does the effective rate differ from my mill rate?
A mill rate is the nominal levy per $1,000 of assessed value. The effective rate reflects what you actually pay after exemptions and assessments — it's the median tax bill as a share of median home value, so it better predicts your real cost.
Will a reassessment raise my tax bill?
Not necessarily. If your home's assessed value rises, your bill can go up, but only if the mill rate and exemptions stay flat. Contact the St. Lawrence County assessor's office to review your current assessment.
Can I appeal my property tax assessment?
Yes. Most counties allow an appeal when you believe the assessed value exceeds the market value. File with the St. Lawrence County assessor within the local deadline, typically with comparable sales as evidence.
Sources
[1] U.S. Census Bureau — ACS 5-Year (2023) — Median home value (B25077), median real-estate taxes (B25103), median household income (B19013), per-capita income (B19301).
[2] IRS — Statistics of Income — County income, AGI, and real-estate taxes paid.
[3] Tax Foundation — State income, sales, corporate, and estate/inheritance tax rates.