ZIP 21104 · Marriottsville
Who lives in ZIP code 21104 (Marriottsville, MD): age, income, housing, education and work.
Source: uszips 2026 (ACS-based ZIP file)
2026 ZIP profile
Marriottsville, MD · Howard County
uszips 2026
People6,052
Median age43.1
Household income$191,804
Home value$678,389
Median rent$1,384/mo
Poverty2.7%
College degree+64.4%
Commute32 min
Place
- Metro area
- Baltimore-Columbia-Towson, MD
- Wider region
- Washington-Baltimore-Arlington, DC-MD-VA-WV-PA
- Time zone
- Eastern
- Density
- 137 / sq mi
- Housing units
- 2,097
Spans 3 counties
Share of the ZIP's people in each county.
Age mix
18.1% are 65 or older; 79.3% are adults.
Household income
76.3% of households earn $100K+. Median per person: $74,542.
Education (adults 25+)
56.4% of degrees are in STEM fields.
Race
1.0% Hispanic or Latino (of any race).
Households & family
- Married
- 66.8%
- Never married
- 23.0%
- Divorced
- 6.3%
- Widowed
- 3.9%
- Family size
- 3.20
- Dual-income families
- 65.5%
Housing
- Own their home
- 97.0%
- Rent burden
- —
- Men / women
- 50% / 50%
Work
- In labor force
- 72.5%
- Unemployment
- 3.2%
- Self-employed
- 15.5%
- Farmers
- 0.0%
Community
- Charitable givers
- 57.6%
- Veterans
- 5.1%
- With a disability
- 5.2%
- No health insurance
- 5.3%
- Limited English
- 1.5%
Source: uszips 2026 (ACS-based ZIP file). Shares are percentages of people, households or adults as the measure implies.