East Islip, NY population, income and ZIP codes

East Islip CDP is a mid-size town in New York, with 13,687 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #148 of 1,292 ranked by population — larger than 88% of them. The median age here is 41.3 years against 39.1 nationally, a slightly older profile than the country as a whole. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.

Households in East Islip CDP earn a median of $146,890 a year, 87% above the national figure of $78,538 and 60% above the $91,806 median for the 847 New York cities we cover. Household income here is measured before tax and pooled across everyone at the address, which is why it reads higher than typical individual earnings in the same area. Poverty reaches 4.5% of residents here, less than half the 12.4% national rate.

The typical owner-occupied home in East Islip CDP is valued at $577,600, 90.4% above the national figure and 83% above the $315,800 peer median, while median gross rent runs $2,202 a month, 56.6% above the national figure, or roughly $26,424 across a full year. A household on the local median income would put about 18% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is cheap relative to what people here earn. The home-price-to-income ratio works out to 3.9×, against roughly 3.9× nationally, so buying is easier here than in the average US market. 90% of occupied homes are owner-occupied versus 65% nationally, an owner-dominated market where rental listings are scarce and rent medians rest on a thin sample. The rent line includes utilities paid by the tenant, a definition worth remembering when comparing it against a landlord's quoted rate.

All values below were released by the Census for this exact geography, with no gap-filling on our side. Small-area estimates still carry wider margins of error than state or national figures, so check the linked ACS tables before relying on them for lending, appraisal or legal work.