Census place · GEOID 2467675 · Montgomery County
Rockville, MD ZIP codes
7 ZIP/ZCTAs intersecting this Census place in Montgomery County.
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: Census place Rockville (GEOID 2467675). Methodology
Combined population of ZIP/ZCTAs intersecting this place: 249,639 (7 ZIPs).
Combined population of ZIP/ZCTAs intersecting this place. Each intersecting ZIP contributes its full ZCTA population; overlap percents are descriptive only. This is not the Census place ACS headline above. Methodology
Map of Rockville, MD

ZIP/ZCTA overlap with Rockville
Population overlap
Share of each ZIP/ZCTA’s population located within Rockville, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.
- 2085073.3%
USPS primary city
- 2085183.3%
USPS primary city
- 2085225.6%
USPS primary city
- 208530.1%
USPS primary city
- 208549.3%
- 208553.9%
- 208770.0%
ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
ZIP codes intersecting Rockville
| ZIP | City | County | Population | Income |
|---|---|---|---|---|
| 20850 | Rockville | Montgomery County | 50,365 | $122,691 |
| 20851 | Rockville | Montgomery County | 14,660 | $113,951 |
| 20852 | Rockville | Montgomery County | 47,857 | $121,496 |
| 20853 | Rockville | Montgomery County | 31,438 | $157,168 |
| 20854 | Potomac | Montgomery County | 49,694 | $250,000+ |
| 20855 | Derwood | Montgomery County | 16,557 | $147,708 |
| 20877 | Gaithersburg | Montgomery County | 39,068 | $86,103 |
USPS associates these ZIPs with Rockville
These codes list Rockville as a primary or acceptable city. They are not used for the ACS headline.
| ZIP | City | County | Population | Income |
|---|---|---|---|---|
| 20847 | Rockville | Montgomery County | 122 | — |
| 20848 | Rockville | Montgomery County | 345 | — |
| 20849 | Rockville | Montgomery County | 535 | — |
| 20857 | Rockville | Montgomery County | — | — |
| 20859 | Potomac | Montgomery County | 240 | — |