ZIP code 11801

ZIP 11801 is a small city in Nassau County, New York, with 41,792 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #127 of 1,824 ranked by population — larger than 93% of them. The median age here is 41.9 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 ZIP 11801 earn a median of $147,945 a year, 88.4% above the national figure of $78,538. This figure covers the household, not the worker: two people on ordinary wages at one address outrank a single professional in the same table. Poverty reaches 3.5% of residents here, less than half the 12.4% national rate.

The typical owner-occupied home in ZIP 11801 is valued at $611,400, 101.5% above the national figure, while median gross rent runs $2,992 a month, 112.8% above the national figure, or roughly $35,904 across a full year. A household on the local median income would put about 24.3% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is within the standard affordability guideline. The home-price-to-income ratio works out to 4.1×, against roughly 3.9× nationally, so buying is harder here than in the average US market. 88% 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.

ZIP 11801 is tabulated inside Nassau County, New York, one of 69 ZIP areas the Census publishes for that county and 1,826 across New York. This is a dense urban ZIP, where a single postal boundary can hold more residents than an entire rural county. County assignment on this page follows the largest share of the ZIP's land area, which matters where a delivery route crosses a county line: mail addressed to 11801 can be handled by a post office in a neighbouring county even though the tabulation area is filed here.

Against its own county, 11801 reports a median household income of $147,945, close to the $150,397 county median, and 86% above the $79,429 typical NY ZIP. Owner-occupied homes are valued at a median of $611,400, 14% below the county figure and 163% above the statewide ZIP median. Rent is reported gross — the contract amount plus tenant-paid utilities — at $2,992 a month, which is why it reads higher than the advertised rent on a listing for the same unit.

New York charges 4% statewide, and local governments overlapping 11801 may add county, city or special-district levies on top. We publish the state floor for this ZIP rather than guessing a combined figure, because ZIP boundaries and taxing-district boundaries were drawn for different purposes and do not line up.

Everything above comes from the Census Bureau American Community Survey 2019-2023 ACS 5-year estimates for this ZIP Code Tabulation Area, with sales tax rates traced to the state revenue agency. Five-year estimates pool sixty months of responses, so they are stable enough to compare 11801 with its neighbours but always trail the current year, and any value the Census suppressed for sample size is shown as unpublished rather than filled in with a model.