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, MD

ZIP Code 21737 — undefined, MD Demographics & Data

Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.

Wealthy AreaLow Snow AreaRemote Work Hub

Map, Quick Facts & Location

Quick Facts

Local time
Population
2,384
Median Income
$250,001
+233% vs US avg
Home Value
$1,032,800
+197% vs US avg
Median Rent
N/A
Median Age
38.2 yrs
-2% vs US avg
City
N/A
Area Code
Congress
Top Ancestry
IrishGermanItalian
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Location
Coordinates
39.2483, -77.0271
Elevation
700 ft
Land Area
5.1 sq mi
Water Area
0.1 sq mi (1% water)

At a glance

Population
2,384
Density
N/A
Median income
$250,001
+233% vs US avg
Home value
$1,032,800
+197% vs US avg
Median rent
N/A
Timezone

Overview of ZIP Code 21737

AffluentHigh-income residential area
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What to know about ZIP 21737

ZIP code 21737 covers MD in Howard County with a population of about 2,384.

At a glance, the area shows median age of 38.2 (near the U.S. median).

It sits in telephone area codes 410, 443, 667; U.S. House district MD-3; the BALTIMORE media market.

Local search focus: Affluent

MD 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.

Income and economy in MD

Median household income in ZIP 21737 is about $250,001 — about 233% above the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 0.8%; unemployment rate near 0.8%; 74.3% of adults with a bachelor’s degree or higher (about 40.6 points above the national share (33.7%)).

Labor and commute patterns include leading industry context around Healthcare, Professional services, and Finance and insurance; about 19.3% of workers reporting work-from-home (about 4.1 points above the U.S. share (15.2%)); a mean commute of about 180.0 minutes (U.S. average near 26.8).

Housing and affordability in ZIP 21737

Median home value is about $1,032,800 — about 197% above the U.S. median home value ($348,079).

Housing tenure and rents show owner-occupancy near 92.0% (about 26.6 points above the national owner-occupancy rate (65.4%)).

To comfortably buy a median-priced home in ZIP 21737 in MD, a household would need roughly $284,000 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 $6,634. That is roughly in line with the local median household income ($250,001). Rates, taxes, insurance, and HOA fees vary — treat this as a planning estimate, not a lender quote.

Climate risk and migration signals

FEMA’s National Risk Index rates natural-hazard risk for MD as Relatively Low (composite score 72.4), which is elevated versus much of the country. The strongest component scores on US5 are hurricane (81.2) and flood (78.1). 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 MD show little to no average snow and around 47.9 inches of annual precipitation.

IRS migration statistics show a net inflow of about 140 for ZIP 21737 (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.

Nearby (from this ZIP)

Airport FME (18.2 miles (29.3 km)) · Howard Community College (8.3 miles (13.4 km)) · Baltimore-Washington Parkway (17.9 miles (28.9 km)) · VA: Washington D.C. Vet Center (16.2 miles (26.1 km))

Full lists and map pins are in the Infrastructure section below.