New York · Population 15,884 · Updated March 2026
How far your income goes in Seaford
State-level tax rates that affect your costs
Seaford has a significantly higher cost of living than most US cities, driven largely by premium housing costs. With a cost index of 192 (where 100 equals the national median), Seaford residents can expect to pay median rent of $2,612/month while earning a median household income of $156,488/year.
The median home value in Seaford, NY is $631,000, with typical monthly owner costs around $2,750 including mortgage, insurance, and taxes. The median rent-to-income ratio of 20.0% 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 Seaford.
Common questions about living costs in Seaford