Potomac ZIP codes, Maryland
Potomac, MD has 2 ZIP codes (20854 and 20859) and area codes 240, 301 and 227. The largest is 20854.
- USPS city name
- 2 ZIP codes
- Overlapping the city
- 2 more
- Population
- 45,902
- County
- Montgomery County
- State
- Maryland
NANPA lists no telephone rate centre for Potomac itself, so these are the area codes of the nearest one, Gaithersburg (0.0 miles). A town on an area-code boundary can differ from its neighbour.
Mail addressed to Potomac uses the ZIP codes above. 2 more ZIP codes cover part of the city but are addressed as somewhere else; they are listed separately below.
Potomac in numbers
About 45,902 people live in Potomac, in 16,316 households, the 20th-largest of Maryland's 527 census places. The median household income is $236,675 a year, 2.3 times the Maryland median of $103,678 (US: $80,734). The median owner-occupied home is valued at $1,157,000 (2.8 times the Maryland median), and median gross rent is $2,887 a month. The median age is 47.4; 84.9% of adults 25 and over hold a bachelor's degree or higher (43.4% across Maryland); the average commute takes 30 minutes.
| Population | 45,902 |
|---|---|
| Households | 16,316 |
| Median age | 47.4 |
| Median household income | $236,675 |
| Median home value | $1,157,000 |
| Median gross rent | $2,887 |
| Bachelor's degree or higher | 84.9% |
| Mean commute | 29.7 min |
| Population density | 1,824 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Potomac CDP. Survey estimates carry margins of error, wider for small places. Sources and methods.
ZIP codes addressed as Potomac
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
20854 | Potomac , MD | Standard | 50,498 | $250,000+ | $1,165,400 |
20859 | Potomac , MD | No street area | — | — | — |
Other ZIP codes overlapping Potomac
These ZIP codes cover part of Potomac but are addressed as somewhere else.
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
20817 | Bethesda , MD | Standard | 37,454 | $249,332 | $1,183,600 |
20852 | Rockville , MD | Standard | 48,180 | $122,472 | $665,200 |
Map of Potomac ZIP codes
The ZIP codes of Potomac, MD, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Towns near Potomac
The nearest larger towns are North Bethesda (49,677 people, 4.3 mi), Bethesda (69,397 people, 4.4 mi) and McLean, VA (49,627 people, 4.8 mi).
| Town | Population | Distance |
|---|---|---|
| North Bethesda | 49,677 | 4.3 mi |
| Bethesda | 69,397 | 4.4 mi |
| Travilah | 11,721 | 4.4 mi |
| McLean, VA | 49,627 | 4.8 mi |
| Rockville | 67,671 | 5.3 mi |
| Brookmont | 3,671 | 5.4 mi |
| Great Falls, VA | 15,228 | 5.8 mi |
| North Potomac | 23,922 | 6.2 mi |
| Chevy Chase | 2,906 | 6.3 mi |
| Chevy Chase | 9,445 | 6.5 mi |
| Friendship Heights Village | 4,002 | 6.6 mi |
| Tysons, VA | 28,936 | 6.6 mi |
| North Kensington | 8,954 | 6.8 mi |
| South Kensington | 8,148 | 6.8 mi |
More nearby: every ZIP code in Montgomery County · Maryland ZIP codes
Cite this page
zipcodes.pro. “Potomac, MD ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/md/potomac
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