ZIP Code 21837 — Mardela Springs town, MD Demographics & Data

ZIP code 21837 covers Mardela Springs, MD in Wicomico County with a population of about 2,975.

At a glance, the area shows median age of 39.7 (near the U.S. median).

It sits in telephone area codes 410, 443, 667; U.S. House district MD-1; the SALISBURY media market.

Median household income in ZIP 21837 is about $71,667 — about 5% below the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 4.9%; unemployment rate near 3.5%; 19.0% of adults with a bachelor’s degree or higher (about 14.7 points below the national share (33.7%)).

Labor and commute patterns include leading industry context around Retail trade, Manufacturing, and Healthcare; about 4.1% of workers reporting work-from-home (about 11.1 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 $206,100 — about 41% below the U.S. median home value ($348,079).

Housing tenure and rents show median gross rent around $597 (about 49% below the U.S. median rent ($1,163)), and owner-occupancy near 86.5% (about 21.1 points above the national owner-occupancy rate (65.4%)).

To comfortably buy a median-priced home in ZIP 21837 in Mardela Springs, MD, a household would need roughly $57,000 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 $1,324. That sits below the local median household income ($71,667), 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 Mardela Springs town, MD as Relatively Low (composite score 60.8), which is near the middle of the national distribution. The strongest component scores on US5 are hurricane (91.6) and wildfire (80.9). 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 Mardela Springs town, MD show little to no average snow.

IRS migration statistics show a net inflow of about 175 for ZIP 21837 (Mardela Springs town, MD) 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.