Categories in Potomac, Maryland
Car Detailing ServiceCar & Light Vehicle DealershipsCar rentalCar Repair and MaintenanceCar WashGas StationCommercial PrinterComputer WholesalerElectronic Parts ManufacturerElectronics WholesalerFarmingImport Export CompanyPharmaceutical CompanySecurity System SupplierWholesale of construction suppliesBoutiqueCleanersClothing storesDry CleanerFashion Accessories StoreUpholstery Cleaning ServiceWomen's clothingMobile phone storesRadio BroadcasterTelecommunicationsTelecommunications Service ProviderTelephone CompanyTelevision StationAfter School ProgramAssisted Living FacilityAssociation or OrganizationChild Care AgencyChurchesClubCommunity CenterCounseling & Support ServicesCounselorCourts of lawDay Care CenterFamily CounselorFire StationGovernment OfficeMailing ServiceNon-Profit OrganizationPost OfficeProfessional & Fraternal OrganizationsReligionReligious OrganizationSenior Citizen CenterShipping and Mailing Service
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Industries
Business Distribution by Industry in Potomac, Maryland
| Industry Description | Number of Establishments | Average Age of Business |
|---|---|---|
| Health and medical | 677 | 25 years |
| Real estate | 558 | 29 years |
| Corporate management | 468 | 26 years |
| Physicians and surgeons | 243 | 32 years |
| Lawyers legal | 227 | 26 years |
| Dentists | 145 | 32 years |
| Electronics stores | 121 | 27 years |
| Travel and transportation | 107 | 33 years |
| Construction of buildings | 100 | 29 years |
| Scientific and technical services | 86 | 22 years |
| Shopping | 85 | 27 years |
| Restaurants | 83 | 31 years |
Potomac, Maryland Facts
| Area | 26.6 mi² |
| Population | 48,908 |
| Male Population | 23,412 (47.9%) |
| Female Population | 25,496 (52.1%) |
| Population change (1975 to 2020) | +50.2% |
| Population change (2000 to 2020) | +20.3% |
| Median Age | 46.8 years (Male: 46.2, Female: 47.2) |
| GDP per capita (PPP) | $70,716 (2022) |
| Area Codes | 240, 301 |
| Neighborhoods | West Rockville, Potomac, Potomac/Cabin John, Potomac Woods, Potomac Springs |
| Local Time | |
| Timezone | Eastern Daylight Time |
| Lat & Lng | 39.01817, -77.20859 |
| Zip Codes | 20827, 20854, 20859 |
Map of Potomac, Maryland
Interactive Map
Potomac, Maryland Population
Years 1975 to 2030
| Data | 1975 | 1990 | 2000 | 2015 | 2020 | 2025* | 2030* |
|---|---|---|---|---|---|---|---|
| Population | 32,570 | 37,343 | 40,668 | 46,976 | 48,908 | 50,228 | 51,719 |
| Population Density | 1,224.8 / mi² | 1,404.3 / mi² | 1,529.3 / mi² | 1,766.5 / mi² | 1,839.1 / mi² | 1,888.8 / mi² | 1,944.9 / mi² |
* Projected
Sources: JRC (European Commission's Joint Research Centre) work on the GHS built-up gridPotomac, Maryland Population change from 2000 to 2020
Increase of 20.3% from year 2000 to 2020
| Location | Change since 1975 | Change since 1990 | Change since 2000 |
|---|---|---|---|
| Potomac, Maryland | +50.2% | +31% | +20.3% |
| Maryland | — | — | — |
| United States | — | — | — |
Sources: JRC (European Commission's Joint Research Centre) work on the GHS built-up grid
Potomac, Maryland Median Age
Median Age: 46.8 years
| Location | Median Age | Median Age (Female) | Median Age (Male) |
|---|---|---|---|
| Potomac, Maryland | 46.8 yrs | 47.2 yrs | 46.2 yrs |
| Maryland | 38.2 yrs | 39.6 yrs | 36.8 yrs |
| United States | 37.4 yrs | 38.7 yrs | 36.1 yrs |
Sources: CIESIN (Center for International Earth Science Information Network)
Potomac, Maryland Population Density
Population Density: 1,839 / mi²
| Location | Population | Area | Density |
|---|---|---|---|
| Potomac, Maryland | 48,908 | 26.59 sq mi | 1,839 / mi² |
| Maryland | 6 million | 12,405.9 sq mi | 483 / mi² |
| United States | 321.6 million | 3,796,740.8 sq mi | 84.7 / mi² |
Sources: JRC (European Commission's Joint Research Centre) work on the GHS built-up grid
Potomac, Maryland Historical and Projected Population
Estimated Population from 1740 to 2100
Sources:
- JRC (European Commission's Joint Research Centre) work on the GHS built-up grid
- CIESIN (Center for International Earth Science Information Network)
- [Link] Klein Goldewijk, K., Beusen, A., Doelman, J., and Stehfest, E.: Anthropogenic land use estimates for the Holocene – HYDE 3.2, Earth Syst. Sci. Data, 9, 927–953, https://doi.org/10.5194/essd-9-927-2017, 2017.
Neighborhoods in Potomac, Maryland
Percentage of businesses by neighborhood in Potomac, Maryland
Area Codes
Percentage Area Codes used by businesses in Potomac, Maryland
Price Distribution
Business distribution by price for Potomac, Maryland
Human Development Index (HDI)
Statistic composite index of life expectancy, education, and per capita income.
Source: [Link] Kummu, M., Taka, M. &Guillaume, J. Gridded global datasets for Gross Domestic Product and Human Development Index over 1990–2015. Sci Data 5, 180004 (2018) doi:10.1038/sdata.2018.4
Potomac, Maryland Gross Domestic Product (GDP)
GDP per capita, PPP (constant 2017 international $)
| Data | 1990 | 1995 | 2000 | 2005 | 2010 | 2015 | 2020 | 2022 |
|---|---|---|---|---|---|---|---|---|
| GDP per capita | $60,110 | $53,271 | $62,487 | $54,036 | $62,688 | $67,071 | $67,525 | $70,716 |
| Total GDP | $2.7B | $2.6B | $3.3B | $3B | $3.7B | $4.1B | $4.4B | $4.7B |
Source: [Link] Kummu, M., Kosonen, M. & Masoumzadeh Sayyar, S. Downscaled gridded global dataset for gross domestic product (GDP) per capita PPP over 1990–2022. Sci Data 12, 178 (2025) doi:10.1038/s41597-025-04487-x
Potomac, Maryland CO2 Emissions
Carbon Dioxide (CO2) Emissions Per Capita in Tonnes Per Year
| Location | CO2 Emissions | CO2 Emissions Per Capita | CO2 Emissions Intensity |
|---|---|---|---|
| Potomac, Maryland | 1,154,533 tn | 23.61 tn | 43,415.3 tons/mi² |
| Maryland | 98,007,598 tn | 16.37 tn | 7,900.1 tons/mi² |
| United States | 5,664,619,810 tn | 17.62 tn | 1,492 tons/mi² |
Sources: [Link] Moran, D., Kanemoto K; Jiborn, M., Wood, R., Többen, J., and Seto, K.C. (2018) Carbon footprints of 13,000 cities. Environmental Research Letters DOI: 10.1088/1748-9326/aac72a
Potomac, Maryland CO2 Emissions
| 2013 CO2 emissions (tonnes/year) | 1,154,533 tn |
| 2013 CO2 emissions (tonnes/year) per capita | 23.61 tn |
| 2013 CO2 emissions intensity (tonnes/mi²/year) | 43,415.3 tons/mi² |
Natural Hazards Risk
Relative risk out of 10
| Hazard | Risk Level |
|---|---|
| Flood | Medium (7) |
* Risk, particularly concerning flood or landslide, may not be for the entire area.
Sources:
- Dilley, M., R.S. Chen, U. Deichmann, A.L. Lerner-Lam, M. Arnold, J. Agwe, P. Buys, O. Kjekstad, B. Lyon, and G. Yetman. 2005. Natural Disaster Hotspots: A Global Risk Analysis. Washington, D.C.: World Bank. https://doi.org/10.1596/0-8213-5930-4.
- Center for Hazards and Risk Research - CHRR - Columbia University, Center for International Earth Science Information Network - CIESIN - Columbia University. 2005. Global Flood Hazard Frequency and Distribution. Palisades, NY: NASA Socioeconomic Data and Applications Center (SEDAC). https://doi.org/10.7927/H4668B3D.
Recent Nearby Earthquakes
Magnitude 3.0 and greater
| Date▼ | Time↕ | Magnitude↕ | Distance↕ | Depth↕ | Location↕ | Link |
|---|---|---|---|---|---|---|
| 1/17/16 | 7:12 PM | 3.03 | 63.1 km | 4,740 m | 3km NE of Ranson, West Virginia | usgs.gov |
| 7/16/10 | 9:04 AM | 3.6 | 32.1 km | 7,030 m | 1km NW of Germantown, Maryland | usgs.gov |
Source: U.S. Geological Survey (USGS)
Potomac, Maryland
Potomac is a census-designated place (CDP) in Montgomery County, Maryland, United States, named for the nearby Potomac River. In 2013, CNNMoney.com listed Potomac as the most affluent town in all the United States based on median household income. Po..
Potomac, Maryland Wikipedia Page
About Our Data
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