What to know about ZIP 21720
ZIP code 21720 covers ZIP 21720 with a population of about 5,332.
At a glance, the area shows median age of 41.2 versus a U.S. median of about 38.9.
It sits in the WASHINGTON, DC (HAGRSTWN) media market.
Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.
ZIP code 21720 covers ZIP 21720 with a population of about 5,332.
At a glance, the area shows median age of 41.2 versus a U.S. median of about 38.9.
It sits in the WASHINGTON, DC (HAGRSTWN) media market.
Median household income in ZIP 21720 is about $88,918 — about 18% above the U.S. median ($75,149).
On socioeconomic markers, US5 shows a poverty rate of 11.7%; unemployment rate near 3.2%; 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, Healthcare, and Education; about 6.4% of workers reporting work-from-home (about 8.8 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 $319,000 — about 8% below the U.S. median home value ($348,079).
Housing tenure and rents show median gross rent around $729 (about 37% below the U.S. median rent ($1,163)), and owner-occupancy near 76.8% (about 11.4 points above the national owner-occupancy rate (65.4%)).
To comfortably buy a median-priced home in ZIP 21720, 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 $2,049. That is roughly in line with the local median household income ($88,918). Rates, taxes, insurance, and HOA fees vary — treat this as a planning estimate, not a lender quote.