POTOMAC, MD ZIP Code
| City | POTOMAC |
| State | Maryland |
| ZIP Codes count | 3 (see all) |
| Post offices count | 2 (see all) |
| Total population | 45,824 (see all) |
ZIP Codes in POTOMAC, Maryland
20850, 20854, 20859
This list contains only 5-digit ZIP codes. Use our zip code lookup by address feature to get the full 9-digit (ZIP+4) code.
List of POTOMAC, MD ZIP Codes
| ZIP | TYPE | POPU |
|---|---|---|
| 20850 | STANDARD | 51,707 |
| 20854 | STANDARD | 49,684 |
| 20859 | PO BOX | – |
Post offices
POTOMAC — Post Office™ 10221 RIVER RD POTOMAC, MD 20854-9998 |
ROCKVILLE — Post Office™ 500 N WASHINGTON ST ROCKVILLE, MD 20850-9993 |
Envelope example
On the bottom center of the envelope, write the address you want your letter delivered to. Include the following on separate lines:
- Recipient's full name
- Full street address
- City, State, and ZIP Code
Using the same format, write the return address in the top left corner.
Using the full ZIP+4 Code when mailing via the USPS ensures the fastest, most accurate mailing possible. If you are not sure of the full 9-digit ZIP Code, use the 5-digit ZIP Code to avoid loss of letter or package.

The recipient address information is provided for your reference.
Address example
12476 ANSIN CIRCLE DR
POTOMAC MD 20854-6910
POTOMAC MD 20854-6910
11372 BERGER TER
POTOMAC MD 20854-2017
POTOMAC MD 20854-2017
10472 JOINERS LN
POTOMAC MD 20854-1941
POTOMAC MD 20854-1941
7719 MARY CASSATT DR
POTOMAC MD 20854-3226
POTOMAC MD 20854-3226
34 PASTURE BROOK CT
POTOMAC MD 20854-2954
POTOMAC MD 20854-2954
10890 SPRING KNOLL DR
POTOMAC MD 20854-1550
POTOMAC MD 20854-1550
Map
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Census data for POTOMAC, MD
Demographic and housing estimates in POTOMAC, MD
| Total population | 45,824 |
| Male | 21,997 |
| Female | 23,827 |
| Total population | 45,824 |
| Under 5 years | 1,813 |
| 5 to 9 years | 3,047 |
| 10 to 14 years | 3,617 |
| 15 to 19 years | 3,655 |
| 20 to 24 years | 1,810 |
| 25 to 34 years | 2,437 |
| 35 to 44 years | 4,803 |
| 45 to 54 years | 7,515 |
| 55 to 59 years | 3,665 |
| 60 to 64 years | 3,412 |
| 65 to 74 years | 5,331 |
| 75 to 84 years | 3,630 |
| 85 years and over | 1,089 |
| Median age (years) | 47.3 |
| Under 18 years | 11,123 |
| 16 years and over | 36,515 |
| 18 years and over | 34,701 |
| 21 years and over | 33,333 |
| 62 years and over | 12,139 |
| 65 years and over | 10,050 |
| Total population | 45,824 |
| One race | 44,506 |
| White | 31,658 |
| Black or African American | 2,771 |
| American Indian and Alaska Native | 35 |
| Asian | 9,669 |
| Native Hawaiian and Other Pacific Islander | 32 |
| Some other race | 341 |
| Two or more races | 1,318 |
| Citizen, VOTING AGE 18 and over population | 31,238 |
| Male Citizen, VOTING AGE 18 and over population | 14,619 |
| Female Citizen, VOTING AGE 18 and over population | 16,619 |
Social characteristics in POTOMAC, MD
| Total households | 16,239 |
| Family households (families) | 13,068 |
| Married-couple family | 11,587 |
| Male householder, no wife present, family | 292 |
| Female householder, no husband present, family | 1,189 |
| Nonfamily households | 3,171 |
| Average household size | 2.80 |
| Average family size | 3.17 |
Economic characteristics in POTOMAC, MD
| Total households | 16,239 |
| Less than $10,000 | 444 |
| $10,000 to $14,999 | 172 |
| $15,000 to $24,999 | 335 |
| $25,000 to $34,999 | 369 |
| $35,000 to $49,999 | 572 |
| $50,000 to $74,999 | 1,172 |
| $75,000 to $99,999 | 946 |
| $100,000 to $149,999 | 2,338 |
| $150,000 to $199,999 | 2,245 |
| $200,000 or more | 7,646 |
| Median household income (dollars) | 188,104 |
Housing characteristics in POTOMAC, MD
| Total housing units | 16,723 |
| Occupied housing units | 16,239 |
| Vacant housing units | 484 |
| Total housing units | 16,723 |
| 1-unit, detached | 12,457 |
| 1-unit, attached | 2,552 |
| 2 units | 15 |
| 3 or 4 units | 34 |
| 5 to 9 units | 110 |
| 10 to 19 units | 108 |
| 20 or more units | 1,447 |
| Mobile home | 0 |
| Boat, RV, van, etc. | 0 |
| Total housing units | 16,723 |
| Built 2014 or later | 140 |
| Built 2010 to 2013 | 123 |
| Built 2000 to 2009 | 724 |
| Built 1990 to 1999 | 1,694 |
| Built 1980 to 1989 | 3,597 |
| Built 1970 to 1979 | 5,163 |
| Built 1960 to 1969 | 4,352 |
| Built 1950 to 1959 | 636 |
| Built 1940 to 1949 | 110 |
| Built 1939 or earlier | 184 |
| Total housing units | 16,723 |
| 1 room | 48 |
| 2 rooms | 179 |
| 3 rooms | 433 |
| 4 rooms | 662 |
| 5 rooms | 884 |
| 6 rooms | 833 |
| 7 rooms | 1,239 |
| 8 rooms | 2,434 |
| 9 rooms or more | 10,011 |
| Median rooms | 10.0 |
| Total housing units | 16,723 |
| No bedroom | 48 |
| 1 bedroom | 583 |
| 2 bedrooms | 1,205 |
| 3 bedrooms | 2,662 |
| 4 bedrooms | 6,524 |
| 5 or more bedrooms | 5,701 |
| Occupied housing units | 16,239 |
| Owner-occupied | 14,247 |
| Renter-occupied | 1,992 |
| Average household size of owner-occupied unit | 2.81 |
| Average household size of renter-occupied unit | 2.77 |
| Occupied housing units | 16,239 |
| Moved in 2017 or later | 488 |
| Moved in 2015 to 2016 | 1,189 |
| Moved in 2010 to 2014 | 3,132 |
| Moved in 2000 to 2009 | 4,713 |
| Moved in 1990 to 1999 | 3,111 |
| Moved in 1989 and earlier | 3,606 |
| Owner-occupied units | 14,247 |
| Less than $50,000 | 192 |
| $50,000 to $99,999 | 10 |
| $100,000 to $149,999 | 39 |
| $150,000 to $199,999 | 171 |
| $200,000 to $299,999 | 588 |
| $300,000 to $499,999 | 443 |
| $500,000 to $999,999 | 7,544 |
| $1,000,000 or more | 5,260 |
| Median (dollars) | 896,300 |
| Owner-occupied units | 14,247 |
| Housing units with a mortgage | 9,526 |
| Housing units without a mortgage | 4,721 |
| Occupied units paying rent | 1,884 |
| Less than $500 | 222 |
| $500 to $999 | 116 |
| $1,000 to $1,499 | 326 |
| $1,500 to $1,999 | 255 |
| $2,000 to $2,499 | 193 |
| $2,500 to $2,999 | 328 |
| $3,000 or more | 444 |
| Median (dollars) | 2,060 |
| No rent paid | 108 |
Data is based on 2018 Census
ZIP Codes for other locations
State for POTOMAC
Maryland ZIP CodesOther cities in Maryland