ZIP Code 11951 — Mastic Beach CDP, NY Demographics & Data

ZIP code 11951 covers Mastic Beach, NY in Suffolk County with a population of about 15,830.

At a glance, the area shows median age of 38.4 (near the U.S. median).

It sits in telephone area codes 631, 934; U.S. House district NY-2; the NEW YORK media market.

Mastic Beach, NY matches a tourism / travel destination profile (tourism/destination place names). Search demand here often clusters around weather, landmarks, short stays, and local services — the live 7-day forecast on this page is especially useful for trip planning.

Median household income in ZIP 11951 is about $108,877 — about 45% above the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 22.3%; unemployment rate near 6.8%; 20.5% of adults with a bachelor’s degree or higher (about 13.2 points below the national share (33.7%)).

Labor and commute patterns include leading industry context around Healthcare, Retail trade, and Manufacturing; about 7.8% of workers reporting work-from-home (about 7.3 points below the U.S. share (15.2%)); a mean commute of about 180.0 minutes (U.S. average near 26.8).

Median home value is about $321,200 — about 8% below the U.S. median home value ($348,079).

Housing tenure and rents show median gross rent around $2,261 (about 94% above the U.S. median rent ($1,163)), and owner-occupancy near 81.2% (about 15.8 points above the national owner-occupancy rate (65.4%)).

To comfortably buy a median-priced home in ZIP 11951 in Mastic Beach, NY, a household would need roughly $88,000 in annual income under a 20% down, 30-year loan at 6.8% (illustrative), keeping housing costs near 28% of income. Estimated monthly PITI is about $2,063. That sits below the local median household income ($108,877), suggesting the typical household income is closer to a workable buy-in level under these assumptions. Rates, taxes, insurance, and HOA fees vary — treat this as a planning estimate, not a lender quote.

FEMA’s National Risk Index rates natural-hazard risk for Mastic Beach CDP, NY as Relatively High (composite score 97.3), which is among the highest nationally. The strongest component scores on US5 are flood (98.3) and hurricane (96.8). These scores are county-linked NRI values published for planning context — all ZIP codes in the same county share the same composite score on US5. Useful when comparing insurance and disaster exposure across areas, not a substitute for a parcel-level flood or fire determination.

Climate normals for Mastic Beach CDP, NY show little to no average snow and around 44.2 inches of annual precipitation.

IRS migration statistics show a net inflow of about 684 for ZIP 11951 (Mastic Beach CDP, NY) on US5’s published series — a signal of people/tax filers moving in relative to those leaving. Inflows often track job growth, housing demand, or lifestyle migration; treat the figure as a directional indicator rather than a precise headcount.