ZIP 21655 · Preston
Who lives in ZIP code 21655 (Preston, MD): age, income, housing, education and work.
Source: uszips 2026 (ACS-based ZIP file)
2026 ZIP profile
Preston, MD · Caroline County
uszips 2026
People5,053
Median age42.2
Household income$90,385
Home value$304,178
Median rent$1,380/mo
Poverty4.3%
College degree+24.0%
Commute29 min
Place
- Metro area
- Outside any metro
- Time zone
- Eastern
- Density
- 37 / sq mi
- Housing units
- 1,862
County
Share of the ZIP's people in each county.
Age mix
18.7% are 65 or older; 78.4% are adults.
Household income
42.8% of households earn $100K+. Median per person: $42,287.
Education (adults 25+)
47.4% of degrees are in STEM fields.
Race
2.4% Hispanic or Latino (of any race).
Households & family
- Married
- 56.0%
- Never married
- 29.1%
- Divorced
- 10.1%
- Widowed
- 4.8%
- Family size
- 3.10
- Dual-income families
- 57.5%
Housing
- Own their home
- 84.0%
- Rent burden
- 28.3%
- Men / women
- 50% / 50%
Work
- In labor force
- 69.2%
- Unemployment
- 3.1%
- Self-employed
- 15.7%
- Farmers
- 3.4%
Community
- Charitable givers
- 25.8%
- Veterans
- 7.4%
- With a disability
- 10.2%
- No health insurance
- 2.9%
- Limited English
- 0.0%
Source: uszips 2026 (ACS-based ZIP file). Shares are percentages of people, households or adults as the measure implies.