US Census Data

ZIP 21220 vs ZIP 21230

A side-by-side comparison of ZIP Code 21220 and ZIP Code 21230: population, income, housing, and more.

ZIP 21220 and ZIP 21230 are ZIP Code areas in Maryland. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

ZIP 21220 has the higher population (42,936 vs 33,509 in ZIP 21230). ZIP 21230 has the higher median household income ($94,164 vs $79,676 in ZIP 21220). ZIP 21230 has the higher median home value ($327,700 vs $279,900 in ZIP 21220).

Population, income & housing

ZIP 21220ZIP 21230
Population42,93633,509
Median age38.0 yrs33.0 yrs
Median household income$79,676$94,164
Median home value$279,900$327,700
Median gross rent$1,621$1,771
Housing units17,96018,070
Homeownership rate68.5%49.6%
Bachelor's degree or higher26.4%58.8%
Unemployment rate4.1%3.4%

Trends (ACS 5-year, 2019–2023)

ZIP 21220ZIP 21230
Population41,051 → 42,936 (+4.6%)34,274 → 33,509 (-2.2%)
Median household income$70,800 → $79,676 (+12.5%)$85,150 → $94,164 (+10.6%)
Median home value$218,300 → $279,900 (+28.2%)$276,100 → $327,700 (+18.7%)
Median gross rent$1,248 → $1,621 (+29.9%)$1,490 → $1,771 (+18.9%)

ZIP 21220

Population
41,05142,936
Median household income
$70,800$79,676
Median home value
$218,300$279,900
Median gross rent
$1,248$1,621

ZIP 21230

Population
34,27433,509
Median household income
$85,150$94,164
Median home value
$276,100$327,700
Median gross rent
$1,490$1,771

Age & race/ethnicity

Age distribution (share)

ZIP 21220ZIP 21230
Under 57.3%6.2%
5 to 1716.1%13.1%
18 to 249.3%6.5%
25 to 3413.5%28.9%
35 to 4414.0%15.7%
45 to 5413.6%8.3%
55 to 6413.3%10.3%
65 to 748.2%7.5%
75 and over4.8%3.5%

Race & ethnicity (share)

ZIP 21220ZIP 21230
White (non-Hispanic)56.9%55.0%
Black or African American26.7%23.0%
American Indian & Alaska Native0.1%0.1%
Asian5.1%3.5%
Native Hawaiian & Pacific Islander0.0%0.0%
Some other race0.3%1.3%
Two or more races5.3%4.1%
Hispanic or Latino5.7%13.0%

Educational attainment (age 25+)

Share of adults 25+

ZIP 21220ZIP 21230
No high school diploma11.2%11.8%
High school graduate34.6%13.7%
Some college or associate's27.7%15.7%
Bachelor's degree16.5%31.5%
Graduate or professional degree9.9%27.3%

Commute to work

How workers get to work (share)

ZIP 21220ZIP 21230
Drove alone74.6%59.7%
Carpooled10.4%6.9%
Public transit2.6%4.3%
Walked1.4%6.2%
Bicycle0.1%1.3%
Worked from home8.7%19.9%
Other means2.2%1.8%

Housing

Units in structure (share)

ZIP 21220ZIP 21230
1-unit, detached46.9%6.1%
1-unit, attached28.9%61.5%
2 to 4 units1.9%5.7%
5 to 19 units9.6%4.3%
20 or more units5.2%22.2%
Mobile home & other7.5%0.1%

Poverty & households

ZIP 21220ZIP 21230
Poverty rate14.3%15.8%
Average household size2.642.08
Mean commute (minutes)3126
Median year structure built19821946

Full profiles

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