US Census Data

ZIP 21718 vs ZIP 21727

A side-by-side comparison of ZIP Code 21718 and ZIP Code 21727: population, income, housing, and more.

ZIP 21718 and ZIP 21727 are ZIP Code areas in Maryland. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

ZIP 21727 has the higher population (6,079 vs 142 in ZIP 21718). ZIP 21718 has the higher median household income ($102,917 vs $92,697 in ZIP 21727). ZIP 21718 has the higher median home value ($446,900 vs $304,000 in ZIP 21727).

Population, income & housing

ZIP 21718ZIP 21727
Population1426,079
Median age54.8 yrs29.0 yrs
Median household income$102,917$92,697
Median home value$446,900$304,000
Median gross rent$1,104$824
Housing units681,838
Homeownership rate71.2%77.0%
Bachelor's degree or higher49.1%25.4%
Unemployment rate9.3%3.5%

Trends (ACS 5-year, 2019–2023)

ZIP 21718ZIP 21727
Population151 → 142 (-6.0%)6,792 → 6,079 (-10.5%)
Median household income$80,417 → $102,917 (+28.0%)$73,750 → $92,697 (+25.7%)
Median home value$408,000 → $446,900 (+9.5%)$265,200 → $304,000 (+14.6%)
Median gross rent$1,281 → $1,104 (-13.8%)$848 → $824 (-2.8%)

ZIP 21718

Population
151142
Median household income
$80,417$102,917
Median home value
$408,000$446,900
Median gross rent
$1,281$1,104

ZIP 21727

Population
6,7926,079
Median household income
$73,750$92,697
Median home value
$265,200$304,000
Median gross rent
$848$824

Age & race/ethnicity

Age distribution (share)

ZIP 21718ZIP 21727
Under 52.1%3.3%
5 to 1712.7%10.2%
18 to 244.9%32.6%
25 to 346.3%8.8%
35 to 444.2%7.1%
45 to 5421.1%10.9%
55 to 6419.7%9.5%
65 to 7423.2%6.1%
75 and over5.6%11.4%

Race & ethnicity (share)

ZIP 21718ZIP 21727
White (non-Hispanic)91.5%76.8%
Black or African American0.0%8.6%
American Indian & Alaska Native0.0%0.3%
Asian0.0%0.9%
Native Hawaiian & Pacific Islander0.0%0.0%
Some other race4.2%0.2%
Two or more races4.2%4.5%
Hispanic or Latino0.0%8.9%

Educational attainment (age 25+)

Share of adults 25+

ZIP 21718ZIP 21727
No high school diploma1.8%15.7%
High school graduate28.9%31.2%
Some college or associate's20.2%27.6%
Bachelor's degree21.1%13.6%
Graduate or professional degree28.1%11.9%

Commute to work

How workers get to work (share)

ZIP 21718ZIP 21727
Drove alone74.0%64.5%
Carpooled2.6%7.3%
Public transit3.9%0.6%
Walked3.9%9.3%
Bicycle0.0%0.1%
Worked from home14.3%18.1%
Other means1.3%0.0%

Housing

Units in structure (share)

ZIP 21718ZIP 21727
1-unit, detached88.2%81.6%
1-unit, attached1.5%5.0%
2 to 4 units2.9%4.5%
5 to 19 units7.4%4.1%
20 or more units0.0%4.9%
Mobile home & other0.0%0.0%

Poverty & households

ZIP 21718ZIP 21727
Poverty rate4.2%12.4%
Average household size2.152.49
Mean commute (minutes)3330
Median year structure built19381984

Full profiles

2
ZIP 21718 vs ZIP 21727: Compare Population & Demographics | US Census Data