📍 View location on OpenStreetMap (39.090800, -77.180900)
| Data Metric | Local Statistic |
|---|---|
| Postal / Zip Code | 20850 |
| Primary City | Rockville |
| State / Province | MD |
| County | Montgomery |
| Total Population | 50,353 |
| Population Density | 1,377.1 people/sq mi |
| Timezone | America/New_York |
| Metric | ZIP 20850 | Montgomery County records | MD records |
|---|---|---|---|
| Population estimate | 50,353 | 1,076,754 (sum) | 6,205,597 (sum) |
| Population Density | 1,377.1 /sq mi | -- | -- |
| County population rank | #7 of 46 | -- | -- |
| State population rank | #18 of 470 | -- | -- |
Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.
| ZIP Code | City | Distance | Population estimate |
|---|---|---|---|
| ZIP 20851 | Rockville | 3.3 mi | 14,946 |
| ZIP 20880 | Washington Grove | 3.5 mi | 577 |
| ZIP 20877 | Gaithersburg | 3.5 mi | 38,546 |
| ZIP 20878 | Gaithersburg | 3.9 mi | 66,115 |
| ZIP 20852 | Rockville | 4.1 mi | 48,180 |
Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →