South Valley Stream, NY population, income and ZIP codes

South Valley Stream CDP is a mid-size town in New York, with 6,177 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #309 of 1,292 ranked by population — larger than 76% of them. The median age here is 43.9 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 South Valley Stream CDP earn a median of $138,783 a year, 76.7% above the national figure of $78,538 and 51% 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 12.7% of residents here, above the 12.4% national rate.

The typical owner-occupied home in South Valley Stream CDP is valued at $641,300, 111.4% above the national figure and 103% above the $315,800 peer median, while median gross rent runs $1,839 a month, 30.8% above the national figure, or roughly $22,068 across a full year. A household on the local median income would put about 15.9% 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 4.6×, against roughly 3.9× nationally, so buying is harder here than in the average US market. 77.9% of occupied homes are owner-occupied versus 65% nationally, so the market leans toward owners. The rent line includes utilities paid by the tenant, a definition worth remembering when comparing it against a landlord's quoted rate.

Median income runs above the national figure while poverty also runs above it — a split distribution, not a uniformly comfortable place. Averages hide that; the two numbers together do not.

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.