ZIP 20659 · Mechanicsville
Who lives in ZIP code 20659 (Mechanicsville, MD): age, income, housing, education and work.
Source: uszips 2026 (ACS-based ZIP file)
2026 ZIP profile
Mechanicsville, MD · St. Mary's County
uszips 2026
People24,324
Median age37.5
Household income$121,654
Home value$416,039
Median rent$1,527/mo
Poverty7.5%
College degree+27.5%
Commute41 min
Place
- Metro area
- Lexington Park, MD
- Wider region
- Washington-Baltimore-Arlington, DC-MD-VA-WV-PA
- Time zone
- Eastern
- Density
- 97 / sq mi
- Housing units
- 8,300
Spans 2 counties
Share of the ZIP's people in each county.
Age mix
14.0% are 65 or older; 72.0% are adults.
Household income
58.7% of households earn $100K+. Median per person: $60,311.
Education (adults 25+)
41.6% of degrees are in STEM fields.
Race
3.1% Hispanic or Latino (of any race).
Households & family
- Married
- 57.5%
- Never married
- 29.4%
- Divorced
- 8.8%
- Widowed
- 4.4%
- Family size
- 3.32
- Dual-income families
- 60.8%
Housing
- Own their home
- 88.6%
- Rent burden
- 24.0%
- Men / women
- 50% / 50%
Work
- In labor force
- 68.3%
- Unemployment
- 2.7%
- Self-employed
- 9.3%
- Farmers
- 2.3%
Community
- Charitable givers
- 42.8%
- Veterans
- 11.8%
- With a disability
- 8.8%
- No health insurance
- 7.6%
- Limited English
- 1.1%
Source: uszips 2026 (ACS-based ZIP file). Shares are percentages of people, households or adults as the measure implies.