US Census Data

ZIP 21788 vs ZIP 21791

A side-by-side comparison of ZIP Code 21788 and ZIP Code 21791: population, income, housing, and more.

ZIP 21788 and ZIP 21791 are ZIP Code areas in Maryland. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

ZIP 21788 has the higher population (11,919 vs 4,734 in ZIP 21791). ZIP 21788 has the higher median household income ($93,717 vs $90,460 in ZIP 21791). ZIP 21791 has the higher median home value ($370,300 vs $342,700 in ZIP 21788).

Population, income & housing

ZIP 21788ZIP 21791
Population11,9194,734
Median age46.5 yrs40.9 yrs
Median household income$93,717$90,460
Median home value$342,700$370,300
Median gross rent$1,015$1,320
Housing units5,1021,975
Homeownership rate81.6%83.6%
Bachelor's degree or higher29.5%26.3%
Unemployment rate3.0%2.4%

Trends (ACS 5-year, 2019–2023)

ZIP 21788ZIP 21791
Population11,910 → 11,919 (+0.1%)5,245 → 4,734 (-9.7%)
Median household income$76,737 → $93,717 (+22.1%)$86,725 → $90,460 (+4.3%)
Median home value$256,900 → $342,700 (+33.4%)$324,900 → $370,300 (+14.0%)
Median gross rent$1,109 → $1,015 (-8.5%)$1,069 → $1,320 (+23.5%)

ZIP 21788

Population
11,91011,919
Median household income
$76,737$93,717
Median home value
$256,900$342,700
Median gross rent
$1,109$1,015

ZIP 21791

Population
5,2454,734
Median household income
$86,725$90,460
Median home value
$324,900$370,300
Median gross rent
$1,069$1,320

Age & race/ethnicity

Age distribution (share)

ZIP 21788ZIP 21791
Under 53.5%5.5%
5 to 1715.4%16.3%
18 to 247.3%6.0%
25 to 3411.6%14.6%
35 to 4410.9%12.8%
45 to 5413.9%9.5%
55 to 6417.1%15.9%
65 to 7412.5%10.4%
75 and over7.8%8.9%

Race & ethnicity (share)

ZIP 21788ZIP 21791
White (non-Hispanic)88.8%93.6%
Black or African American1.2%1.8%
American Indian & Alaska Native0.0%0.1%
Asian0.7%2.2%
Native Hawaiian & Pacific Islander0.0%0.0%
Some other race0.2%0.0%
Two or more races3.1%1.2%
Hispanic or Latino6.0%1.1%

Educational attainment (age 25+)

Share of adults 25+

ZIP 21788ZIP 21791
No high school diploma9.3%5.6%
High school graduate36.5%43.2%
Some college or associate's24.8%24.9%
Bachelor's degree17.6%15.3%
Graduate or professional degree11.9%11.0%

Commute to work

How workers get to work (share)

ZIP 21788ZIP 21791
Drove alone75.1%84.3%
Carpooled7.3%5.3%
Public transit0.1%0.4%
Walked1.7%1.8%
Bicycle0.0%0.0%
Worked from home14.4%8.1%
Other means1.4%0.1%

Housing

Units in structure (share)

ZIP 21788ZIP 21791
1-unit, detached77.9%91.8%
1-unit, attached7.5%1.9%
2 to 4 units4.6%3.8%
5 to 19 units6.6%2.0%
20 or more units2.0%0.0%
Mobile home & other1.3%0.4%

Poverty & households

ZIP 21788ZIP 21791
Poverty rate9.4%6.6%
Average household size2.472.54
Mean commute (minutes)2837
Median year structure built19781964

Full profiles

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ZIP 21788 vs ZIP 21791: Compare Population & Demographics | US Census Data