US Census Data

ZIP 21856 vs ZIP 21866

A side-by-side comparison of ZIP Code 21856 and ZIP Code 21866: population, income, housing, and more.

ZIP 21856 and ZIP 21866 are ZIP Code areas in Maryland. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

ZIP 21856 has the higher population (816 vs 106 in ZIP 21866). ZIP 21866 has the higher median household income ($81,420 vs $77,946 in ZIP 21856). ZIP 21856 has the higher median home value ($242,700 vs $95,700 in ZIP 21866).

Population, income & housing

ZIP 21856ZIP 21866
Population816106
Median age52.6 yrs60.7 yrs
Median household income$77,946$81,420
Median home value$242,700$95,700
Housing units41696
Homeownership rate80.6%100.0%
Bachelor's degree or higher19.6%4.7%
Unemployment rate4.4%21.1%

Trends (ACS 5-year, 2019–2023)

ZIP 21856ZIP 21866
Population875 → 816 (-6.7%)48 → 106 (+120.8%)
Median household income$47,695 → $77,946 (+63.4%)$73,684 → $81,420 (+10.5%)
Median home value$116,400 → $242,700 (+108.5%)$80,500 → $95,700 (+18.9%)
Median gross rent$1,219 → $1,193 (-2.1%)

ZIP 21856

Population
875816
Median household income
$47,695$77,946
Median home value
$116,400$242,700
Median gross rent
$1,219$1,193

ZIP 21866

Population
48106
Median household income
$73,684$81,420
Median home value
$80,500$95,700

Age & race/ethnicity

Age distribution (share)

ZIP 21856ZIP 21866
Under 56.3%0.0%
5 to 172.8%0.0%
18 to 2414.8%0.0%
25 to 3412.3%1.9%
35 to 448.8%4.7%
45 to 5411.2%14.2%
55 to 6415.0%45.3%
65 to 749.9%34.0%
75 and over19.0%0.0%

Race & ethnicity (share)

ZIP 21856ZIP 21866
White (non-Hispanic)65.4%93.4%
Black or African American27.0%4.7%
American Indian & Alaska Native0.0%0.0%
Asian0.0%0.0%
Native Hawaiian & Pacific Islander0.0%0.0%
Some other race0.0%0.0%
Two or more races7.6%0.0%
Hispanic or Latino0.0%1.9%

Educational attainment (age 25+)

Share of adults 25+

ZIP 21856ZIP 21866
No high school diploma9.0%67.0%
High school graduate47.8%28.3%
Some college or associate's23.5%0.0%
Bachelor's degree8.7%4.7%
Graduate or professional degree11.0%0.0%

Commute to work

How workers get to work (share)

ZIP 21856ZIP 21866
Drove alone79.7%0.0%
Carpooled0.0%0.0%
Public transit0.0%8.3%
Walked0.0%36.7%
Bicycle0.0%0.0%
Worked from home20.3%30.0%
Other means0.0%25.0%

Housing

Units in structure (share)

ZIP 21856ZIP 21866
1-unit, detached84.9%77.1%
1-unit, attached0.0%0.0%
2 to 4 units0.0%0.0%
5 to 19 units0.0%0.0%
20 or more units0.0%0.0%
Mobile home & other15.1%22.9%

Poverty & households

ZIP 21856ZIP 21866
Poverty rate16.7%40.6%
Average household size2.261.63
Mean commute (minutes)269
Median year structure built19781957

Full profiles

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ZIP 21856 vs ZIP 21866: Compare Population & Demographics | US Census Data