New York · Population 24,940 · Updated March 2026
How far your income goes in Smithtown
State-level tax rates that affect your costs
Smithtown has a significantly higher cost of living than most US cities, driven largely by premium housing costs. With a cost index of 173 (where 100 equals the national median), Smithtown residents can expect to pay median rent of $1,851/month while earning a median household income of $148,852/year.
The median home value in Smithtown, NY is $661,400, with typical monthly owner costs around $2,717 including mortgage, insurance, and taxes. The median rent-to-income ratio of 14.9% means housing is relatively affordable here — well below the 30% threshold that HUD considers cost-burdened.
New York's top income tax rate of 10.9% is among the highest in the nation, adding to the overall cost burden. Combined with a 4.0% sales tax rate and 1.62% effective property tax rate, the overall tax environment is a factor in the total cost of living in Smithtown.
Common questions about living costs in Smithtown