4 ZIP Code Tabulation Areas in Gaithersburg, Maryland. The population-weighted median household income is about $123,849, the median home value about $616,647, and 62.1% of occupied homes are owner-occupied.
- 4
- ZIP codes
- 130K
- Population
- 54
- Data points
Gaithersburg at a glance
- $123,849
- Median household income
- $616,647
- Median home value
- 38.9
- Median age
- 62.1%
- Owner-occupied
- 47,310
- Housing units
Income, home value, and age are population-weighted averages of the ZIP-level medians in the file. Counts are exact.
Top 4 Gaithersburg ZIP codes by median household income| # | ZIP | City | Population | Homeowner % | Median HH $ |
|---|
| 1 | 20878 | Darnestown | 66,115 | 69.2% | $144,313 |
| 2 | 20879 | Flower Hill | 25,264 | 69.8% | $112,104 |
| 3 | 20877 | Flower Hill | 38,546 | 43.1% | $92,800 |
| 4 | 20899 | Gaithersburg | 57 | — | $24,417 |
Top 4 Gaithersburg ZIP codes by population| # | ZIP | City | Population | Homeowner % | Median HH $ |
|---|
| 1 | 20878 | Darnestown | 66,115 | 69.2% | $144,313 |
| 2 | 20877 | Flower Hill | 38,546 | 43.1% | $92,800 |
| 3 | 20879 | Flower Hill | 25,264 | 69.8% | $112,104 |
| 4 | 20899 | Gaithersburg | 57 | — | $24,417 |
Top 3 Gaithersburg ZIP codes by Homeowner GDP| # | ZIP | City | Population | Homeowner % | Median HH $ | Homeowner GDP |
|---|
| 1 | 20878 | Darnestown | 66,115 | 69.2% | $144,313 | $2.4B |
| 2 | 20879 | Flower Hill | 25,264 | 69.8% | $112,104 | $677.1M |
| 3 | 20877 | Flower Hill | 38,546 | 43.1% | $92,800 | $501.1M |
Homeowner GDP = owner-occupied units × median household income — a proxy for aggregate homeowner spending power in a ZIP, useful for scoring market opportunity. Not an official economic statistic.
Densest: 20877 (Flower Hill) at 6,842 people/sq mi. Least dense: 20899 (Gaithersburg) at 538 people/sq mi.
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