ZIP Code 15421 — Deer Lake CDP, PA Demographics & Data

ZIP code 15421 covers Deer Lake, PA in Fayette County with a population of about 84.

At a glance, the area shows median age of 62.7 versus a U.S. median of about 38.9.

It sits in telephone area codes 724, 878; U.S. House district PA-14; the PITTSBURGH media market.

Deer Lake, PA ranks among higher-income / higher-home-value communities on US5 (very high median household income (~$250,001)). Searchers often dig into housing affordability stretch, private schools, and neighborhood comparisons rather than entry-level rentals.

Median household income in ZIP 15421 is about $250,001 — about 233% above the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 0.0%; unemployment rate near 0.0%; 71.4% of adults with a bachelor’s degree or higher (about 37.7 points above the national share (33.7%)).

Labor and commute patterns include leading industry context around Professional services and Other services; a mean commute of about 35.0 minutes (U.S. average near 26.8).

Median home value is about $229,900 — about 34% below the U.S. median home value ($348,079).

Housing tenure and rents show owner-occupancy near 100.0% (about 34.6 points above the national owner-occupancy rate (65.4%)).

To comfortably buy a median-priced home in ZIP 15421 in Deer Lake, PA, a household would need roughly $63,000 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 $1,477. That sits below the local median household income ($250,001), 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 Deer Lake CDP, PA as Relatively Moderate (composite score 82.2), which is elevated versus much of the country. The strongest component scores on US5 are flood (90.6) and hurricane (60.1). 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 Deer Lake CDP, PA show little to no average snow and around 55.7 inches of annual precipitation.

IRS migration statistics show a net inflow of about 4 for ZIP 15421 (Deer Lake CDP, PA) 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.