| ZIP Code | 20878 |
|---|---|
| City | Gaithersburg |
| State | Maryland (MD) |
| County | Montgomery County |
| Area Code | 227/301 |
| Elevation | 394 ft |
| Latitude | 39.112637 |
|---|---|
| Longitude | -77.250436 |
| Timezone | New York (DST) |
| FIPS | 24031 |
| ZIP Type | Standard |
| Status | Active |
Race & Ethnicity
Age Breakdown
Key Indicators
| Median Age | 41.4 yrs ↑ 3% since 2019 |
|---|---|
| Avg Household Size | 2.68 |
| Below Poverty | 5.0% ▼ 51% below avg |
| College Grads | 75.1% ▲ 94% above avg |
| Unemployment | 4.2% ▼ 15% below avg |
| No HS Diploma | 439 (1.1%) |
| HS Graduate | 4,791 (11.6%) |
| Some College | 1,536 (3.7%) |
| Associates | 3,580 (8.6%) |
| Bachelors | 2,476 (6%) |
| Graduate Degree | 28,641 (69.1%) |
Education
Housing Tenure
Home Value Distribution
Financials
| Median HH Income | $142,062 ▲ 86% above avg ↑ 7% since 2019 |
|---|---|
| Median Home Value | $675,200 ▲ 142% above avg ↑ 19% since 2019 |
| Home/Income Ratio | 4.8x (nat avg ~3.5x) |
| Median Rent | $2,188/mo ↑ 20% since 2019 |
| Total Units | 25,297 |
| Vacant Units | 960 |
| Avg HH Size | 2.68 |
Income Distribution
How People Get to Work
Commute Time
Year Built
Summary
| Total Units | 25,297 |
|---|---|
| Vacant | 960 |
| Owner Occupied | 69.3% |
| Renter Occupied | 30.7% |
| Avg HH Size | 2.68 |
ZIP code 20878 is located in Gaithersburg, Maryland, within Montgomery County. With a population of 65,236, this is a densely populated ZIP code with a middle-aged community — the median age is 41.4 years. Economically, 20878 is a upper-middle-income ZIP code: the median household income of $142,062 is significantly above the national average.
Real estate in ZIP code 20878 represents a premium housing market. The median home value of $675,200 is more than double the national average. Renters can expect to pay around $2,188 per month in median rent. Homeownership is strong here — 69.3% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 19% since 2019.
The population of 20878 is racially diverse, with White as the largest group at 44.7%. Residents are highly educated — 75.1% hold a bachelor's degree or higher, which is significantly above the national average. Poverty affects a relatively small share of residents at 5.0%. Household income has grown by 7% since 2019.
The unemployment rate in 20878 stands at 4.2%, which is near the national average. A notably high share of workers — 30% — work from home, reflecting the professional makeup of the area. As in most parts of the country, driving alone is the dominant commute mode at 53%.
Overall, ZIP code 20878 in Gaithersburg, MD is characterized as upper-middle-income, highly educated, a middle-aged community, and predominantly owner-occupied. With 65,236 residents, a median household income of $142,062, and a median home value of $675,200, it offers a clear picture of life in this part of Maryland.