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Potomac, MD
Census-designated place in Montgomery County, Maryland. ZIP codes: 20817, 20854.
Population
45,902
Land area
25.2sq mi
People per sq mi
1,824
ZIP codes
2
Potomac and its ZIP codes
Potomac at a glance
- Potomac is about 2.9 times as dense as Maryland as a whole.
- By population, it ranks 20th among 527 cities and towns in Maryland.
- The median household income is $236,675, about 2.3 times the Maryland median of $103,678.
- A typical owner-occupied home is valued at $1,157,000 (about 2.8 times the Maryland figure) and median rent is $2,887 a month.
Local data for Potomac, MD
Counts from official public data
Housing and community stats
Potomac, MD, American Community Survey 2020-2024
Median household income
$236,675
Poverty rate
3.9%
Median home value
$1,157,000
Median rent
$2,887/mo
Homeownership
84.8%
Bachelor's or higher
84.9%
Median age
47.4
Average commute
29.7 min
Largest reported origins and ancestries: German Americans (4,820), Chinese Americans (4,126), Irish Americans (3,508).
Economy and federal money
Jobs, pay, income and spending are for Montgomery County. PPP loans are for Potomac.
Unemployment rate
3.5%
Aug 2026, -0.7 pts in a year
Average annual pay
$96,368
456,358 jobs, 2025
Income per person
$104,882
BEA, 2024
Federal spending
$17.2B
FY 2026, $16,210 per person
PPP loans
$121M
1,633 loans, 13,598 jobs reported
How people get to work
Potomac, MD, workers 16 and older. American Community Survey 5-year estimates
- Drove alone51.2%
- Carpooled4.6%
- Public transit2.4%
- Walked1.3%
- Bicycle0.2%
- Taxi, ride-hailing, motorcycle or other2.0%
- Worked from home38.3%
Average one-way commute: 29.7 minutes for people who do not work from home.
Environment and hazard risk
Potomac, MD, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Moderate
Top: winter weather
Storm events since 1996
1,849
Countywide, mostly thunderstorm wind
Flood insurance policies
2,029
0.8% of homes, county
July high / Jan low
87° / 27°F
41.3 inches of rain a year
Hazards, floods and storm historyCheck a flood zone2 historic places
Health statistics
Share of adults in Potomac, MD, CDC PLACES estimates
Obesity
21.3%
U.S. 33.3% -12.0 pts
Diabetes
9.8%
U.S. 12.1% -2.3 pts
Smoking
4.7%
U.S. 12.8% -8.1 pts
Uninsured (18-64)
4.4%
U.S. 11.1% -6.7 pts
ZIP codes in Potomac
2 in or overlapping Potomac. Population shown
Cities near Potomac
| Name | Distance | Land area (sq mi) |
|---|---|---|
| Cabin JohnCensus-designated place | 3.5 mi | 1.2 |
| TravilahCensus-designated place | 4.2 mi | 15.9 |
| North BethesdaCensus-designated place | 4.2 mi | 8.9 |
| Glen EchoTown | 4.6 mi | 0.1 |
| BethesdaCensus-designated place | 4.8 mi | 13.3 |
| RockvilleCity | 5.2 mi | 13.6 |
| South KensingtonCensus-designated place | 5.6 mi | 2.1 |
| McLean, VACensus-designated place | 5.6 mi | 24.8 |
| Garrett ParkTown | 5.7 mi | 0.3 |
| BrookmontCensus-designated place | 5.8 mi | 1.3 |
| North PotomacCensus-designated place | 6 mi | 6.5 |
| Great Falls, VACensus-designated place | 6.1 mi | 25.4 |
| Chevy Chase ViewTown | 6.2 mi | 0.3 |
| SomersetTown | 6.4 mi | 0.3 |
| Chevy ChaseTown | 6.5 mi | 0.5 |
| KensingtonTown | 6.6 mi | 0.5 |
Frequently asked questions
- What county is Potomac, MD in?
- Potomac is in Montgomery County, Maryland.
- What ZIP codes are in Potomac, MD?
- ZIP codes in or overlapping Potomac include 20817, 20854.
- What is the population of Potomac, MD?
- About 45,902 people live in Potomac, based on American Community Survey 5-year estimates.
- What cities are near Potomac?
- Nearby places include Cabin John (3.5 mi), Travilah (4.2 mi), North Bethesda (4.2 mi), Glen Echo (4.6 mi), Bethesda (4.8 mi).
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023