What is the population of Potomac CDP?

Potomac CDP has 46,230 residents on Census ACS 2019-2023 ACS 5-year estimates, ranking #20 of 536 in Maryland.

What is the median household income in Potomac CDP?

Median household income in Potomac CDP is $239,205 a year, 204.6% above the national figure of $78,538.

How much does it cost to rent or buy in Potomac CDP?

Median gross rent is $2,616 a month and the median home value is $1,105,900, so rent absorbs about 13.1% of median household income.

Is Potomac CDP affordable compared with the rest of the US?

Homes cost about 4.6× the local median income here versus roughly 3.9× nationally, so Potomac CDP is less affordable to buy in than the typical US market, and rent takes 13.1% of median income against the 30% cost-burden line.

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Maryland · Census place 63300

Potomac, MD population, income and ZIP codes

Quick answer

The population of the city of Potomac, Maryland (Potomac, MD — Census place “Potomac CDP”) is 46,230 residents, ranking #20 of 536 places in Maryland. Median household income is $239,205, the median home is worth $1,105,900 and median gross rent runs $2,616 a month. Looking for the Potomac Maryland ZIP code list? 2 ZIP codes serve Potomac, MD: 20817, 20854.

Population: 46,230Potomac CDP residents
Median household income: $239,205Past 12 months, inflation adjusted
Median home value: $1,105,900Owner-occupied units
Median gross rent: $2,616Rent plus utilities, monthly
Median age: 47 yrsAll residents
Homeownership rate: 85.1%Owner-occupied households

Potomac ZIP codes (Maryland)

Census ZCTAs whose delivery area overlaps Potomac.

The Potomac MD ZIP code list below covers 2 ZIP codes. Open any one for its population, income, housing and rent profile.

What the numbers mean in Potomac CDP

Housing cost measured against local earnings.

A household earning the Potomac CDP median would spend about 13.1% of gross income on the median rent. The 30% mark is the federal threshold for cost burden, so anything above it signals a stretched rental market. The median home costs 4.6× the median household income; nationally that ratio sits near 4.5×. Poverty affects 3.7% of residents and 85.1% of households own their home.

Source: US Census Bureau, ACS 2019-2023 5-year estimates · rates as published for 2019-2023 ACS 5-year

Potomac CDP, MD in context

How this area compares with national benchmarks.

Potomac CDP is a small city in Maryland, with 46,230 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #20 of 536 ranked by population — larger than 96% of them. The median age here is 47 years against 39.1 nationally, a markedly older profile that usually tracks retirees staying put and younger households leaving for work. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.

Households in Potomac CDP earn a median of $239,205 a year, 204.6% above the national figure of $78,538 and 119% above the $109,026 median for the 332 Maryland cities we cover. The median is the midpoint household, not an average, so a handful of very high earners cannot drag it upward the way they distort a mean. Poverty reaches 3.7% of residents here, less than half the 12.4% national rate.

The typical owner-occupied home in Potomac CDP is valued at $1,105,900, 264.5% above the national figure and 178% above the $397,200 peer median, while median gross rent runs $2,616 a month, 86.1% above the national figure, or roughly $31,392 across a full year. A household on the local median income would put about 13.1% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is cheap relative to what people here earn. The home-price-to-income ratio works out to 4.6×, against roughly 3.9× nationally, so buying is harder here than in the average US market. 85.1% of occupied homes are owner-occupied versus 65% nationally, an owner-dominated market where rental listings are scarce and rent medians rest on a thin sample. Rent is reported gross — contract rent plus tenant-paid utilities — which is why it runs above the advertised price on a listing for the same unit.

No figure on this page is estimated by us; each one comes straight from the published ACS tables for this area. Small-area estimates still carry wider margins of error than state or national figures, so check the linked ACS tables before relying on them for lending, appraisal or legal work.

Compare with nearby places

Places of similar size in Maryland.

More Maryland coverage.

Frequently asked questions

Common questions about this area.

What is the population of Potomac CDP?: Potomac CDP has 46,230 residents on Census ACS 2019-2023 ACS 5-year estimates, ranking #20 of 536 in Maryland.
What is the median household income in Potomac CDP?: Median household income in Potomac CDP is $239,205 a year, 204.6% above the national figure of $78,538.
How much does it cost to rent or buy in Potomac CDP?: Median gross rent is $2,616 a month and the median home value is $1,105,900, so rent absorbs about 13.1% of median household income.
Is Potomac CDP affordable compared with the rest of the US?: Homes cost about 4.6× the local median income here versus roughly 3.9× nationally, so Potomac CDP is less affordable to buy in than the typical US market, and rent takes 13.1% of median income against the 30% cost-burden line.
How current is this Potomac CDP data?: All figures come from the US Census Bureau American Community Survey 2019-2023 ACS 5-year five-year estimates. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.