Northumberland, New York · public appraisal records
Are you overpaying property taxes in Northumberland?
We analyzed 1,421 homes in Northumberland, New York against comparable homes in the same ZIP. About 14.9% are assessed more than 15% above the typical comparable home — an estimated $3K a year each in property-tax overpayment. Is yours one of them?
That's about the same as the 15% average across the 428 New York cities we analyzed.
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Where over-assessment clusters in Northumberland
Streets in Northumberland with the most homes assessed above comparable homes nearby. We show the street and a count only — never a specific address or owner. Enter your address below to see if yours is one of them.
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Check my Northumberland home, freeHow we measured this
We compared every single-family home in Northumberland to the median comparable home in the same ZIP, using public assessment rolls, and counted a home as over-assessed when it sits more than 15% above that median. This is a city-level screen — it shows where over-assessment is common, not whether any specific home is over-assessed. See the full nationwide methodology and ranking. Data as of June 2026.
Other New York cities we analyzed
Frequently asked
How many homes in Northumberland, New York are over-assessed?
About 14.9% of single-family homes in Northumberland — roughly 212 of the 1,421 we analyzed — are assessed more than 15% above the typical comparable home in the same ZIP. That's about the same as the 15% average across the 428 New York cities we analyzed. The average over-assessed home in Northumberland sits about 38.7% above its comparables, an estimated $3K a year in property-tax overpayment.
Which streets in Northumberland have the most over-assessed homes?
Among the homes we analyzed in Northumberland, over-assessment clusters most on Stevens Ct (44 homes), Castlewood Dr (43 homes), Homestead Rd (28 homes). We publish the street and a count only, never a specific address — enter your own address to see whether yours is assessed above comparable homes nearby.
How do I appeal my property taxes in Northumberland?
You file a property-tax appeal (or "protest") with your county, usually once a year within a filing window. If comparable homes are assessed for less than yours, that's the standard "unequal appraisal" grounds for a reduction. AppealMyTax builds the pre-filled protest kit and appeal letter for your Northumberland home for $49 flat — sign and submit in about 5 minutes, and you keep 100% of any savings.
Does living in Northumberland mean my home is over-assessed?
Not necessarily. This is a city-level screen built from public appraisal records — it shows where over-assessment is common, not whether your specific home is over-assessed. The only way to know is a per-home comparison against similar properties nearby, which our free address check does in about 30 seconds.