Cost of Living in Islip, NY

With a cost of living index of 146, Islip, NY is one of the most expensive cities in the United States. Living here is 46% more expensive than the national average and 34% above the New York state average of 111. Islip is a smaller community of 17,224 residents, where everyday costs can differ substantially from nearby larger cities.

Housing costs are the biggest factor in Islip's cost of living. The median monthly rent is $2,192 (66% above the US median of $1,319), and the median home value sits at $486,900 (60% above the national median of $304,900). At current prices, the median home costs roughly 4x the median household income — a moderately affordable ratio by today's standards.

The median household income in Islip is $122,596, which is 63% higher than the national median of $75,149. Residents spend roughly 21% of household income on rent. This is a comfortable ratio, well below the 30% threshold that financial experts recommend as a maximum. While incomes are above average, they more than offset the higher cost of living.

Climate is another factor for anyone considering a move to Islip. The area sees an average annual temperature of 53.1°F, with summers averaging 73°F and winters around 34°F. Annual rainfall totals 46 inches spread over roughly 122 days.

Everyday prices in the New York-Newark-Jersey City, NY-NJ (Metropolitan Statistical Area) metro area tend to run above the national average. Out of 6 common grocery and utility items tracked by the Bureau of Labor Statistics, 6 are priced higher than the US average. These real-world prices — from groceries to electricity — add up and should be factored into any cost of living comparison.

Data sources: US Census Bureau (ACS 2023), Zillow Home Values, HUD Fair Market Rents, BEA Regional Price Parities, BLS Average Prices, and NOAA Climate Normals. Updated monthly.