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ZIP 20851 · Rockville

Who lives in ZIP code 20851 (Rockville, MD): age, income, housing, education and work.

Source: uszips 2026 (ACS-based ZIP file)

2026 ZIP profile

Rockville, MD · Montgomery County

uszips 2026
People14,946
Median age38.6
Household income$126,411
Home value$560,943
Median rent$2,043/mo
Poverty9.1%
College degree+46.2%
Commute32 min

Place

Metro area
Washington-Arlington-Alexandria, DC-VA-MD-WV
Wider region
Washington-Baltimore-Arlington, DC-MD-VA-WV-PA
Metro division
Frederick-Gaithersburg-Bethesda, MD
Time zone
Eastern
Density
2,276 / sq mi
Housing units
5,155

County

Montgomery100%

Share of the ZIP's people in each county.

Age mix

Under 1011.0%
10–1910.6%
20s15.3%
30s15.3%
40s15.2%
50s12.4%
60s12.9%
70s3.9%
80+3.5%

13.1% are 65 or older; 80.0% are adults.

Household income

Under $25K7.5%
$25K–50K6.7%
$50K–75K13.0%
$75K–100K10.7%
$100K–150K22.7%
$150K+39.5%

62.2% of households earn $100K+. Median per person: $51,253.

Education (adults 25+)

Less than high school15.5%
High school19.8%
Some college18.5%
Bachelor's24.0%
Graduate22.2%

55.1% of degrees are in STEM fields.

Race

White30.7%
Black11.4%
Asian12.9%
Native American1.3%
Pacific Islander0.0%
Other23.5%
Two or more20.2%

44.1% Hispanic or Latino (of any race).

Households & family

Married
46.3%
Never married
36.4%
Divorced
11.5%
Widowed
5.8%
Family size
3.19
Dual-income families
68.6%

Housing

Own their home
57.5%
Rent burden
28.3%
Men / women
51% / 50%

Work

In labor force
76.5%
Unemployment
3.0%
Self-employed
21.2%
Farmers
0.0%

Community

Charitable givers
31.0%
Veterans
4.6%
With a disability
7.9%
No health insurance
10.0%
Limited English
12.3%

Source: uszips 2026 (ACS-based ZIP file). Shares are percentages of people, households or adults as the measure implies.

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