Census ACS · Maryland
ZIP Code 20878
ZIP code 20878 is located in Maryland with a population of 65,236. The median household income is $142,062 and the median home value is $675,200.
65,236
Population
$142,062
Median Income
$675,200
Median Home Value
41.4
Median Age
Race & Ethnicity
| White | 47.6% |
| Black | 10.5% |
| Asian | 0.0% |
| Hispanic (any race) | 1.2% |
Male: 47.2% · Female: 52.8%
Economy & Income
$142,062
Median Household Income
$69,898
Per Capita Income
3.1%
Poverty Rate
Housing
$675,200
Median Home Value
$2,188
Median Rent
69.3%
Homeownership
Education
96.2%
High School+
70.1%
Bachelor's Degree+
Nearby ZIP Codes
Largest cities in Maryland
Part of Maryland
Metro areas in Maryland
Frequently Asked Questions
ZIP code 20878 in Maryland has a population of 65,236 according to latest Census ACS data.
The median household income in ZIP 20878 is $142,062. The per capita income is $69,898. The poverty rate is 3.1%.
ZIP code 20878 is located in Maryland.
More from Maryland
Data for ZIP Code Tabulation Area (ZCTA) 20878 from the American Community Survey 5-Year estimates. ZCTAs approximately correspond to USPS ZIP code delivery areas but are built from Census blocks and may not match exactly.
ZIP 20878 is defined demographically by education — 70.1% of adults hold a bachelor’s degree, above the national average. ZIP 20878 is a ZIP code in Maryland with a population of 65,236.
Households here are among the highest-earning of all US ZIP codes: median income is $142,062, above the US median of $78,538. Only 3.1% of residents live in poverty, below the national 12.4%. Home prices are steep, with the typical property valued at $675,200, with typical rent around $2,188.
Degree attainment is near the top of the range for US ZIP codes: 70.1% of adults 25+ hold a bachelor’s, above the 35.0% national rate.
The education numbers are the throughline: a college-heavy population in ZIP 20878 usually coincides with higher incomes and a workforce concentrated in professional and information industries.
Source: U.S. Census Bureau ACS, 2026.