What is the population of Seabrook CDP?

Seabrook CDP has 18,495 residents on Census ACS 2019-2023 ACS 5-year estimates, ranking #75 of 536 in Maryland.

What is the median household income in Seabrook CDP?

Median household income in Seabrook CDP is $96,033 a year, 22.3% above the national figure of $78,538.

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

Median gross rent is $1,817 a month and the median home value is $377,900, so rent absorbs about 22.7% of median household income.

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

Homes cost about 3.9× the local median income here versus roughly 3.9× nationally, so Seabrook CDP is more affordable to buy in than the typical US market, and rent takes 22.7% of median income against the 30% cost-burden line.

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Maryland · Census place 70775

Seabrook, MD population, income and ZIP codes

Quick answer

The population of the city of Seabrook, Maryland (Seabrook, MD — Census place “Seabrook CDP”) is 18,495 residents, ranking #75 of 536 places in Maryland. Median household income is $96,033, the median home is worth $377,900 and median gross rent runs $1,817 a month. Looking for the Seabrook Maryland ZIP code list? 1 ZIP codes serve Seabrook, MD: 20706.

Population: 18,495Seabrook CDP residents
Median household income: $96,033Past 12 months, inflation adjusted
Median home value: $377,900Owner-occupied units
Median gross rent: $1,817Rent plus utilities, monthly
Median age: 35.9 yrsAll residents
Homeownership rate: 65.6%Owner-occupied households

Seabrook ZIP codes (Maryland)

Census ZCTAs whose delivery area overlaps Seabrook.

The Seabrook MD ZIP code list below covers 1 ZIP code. Open any one for its population, income, housing and rent profile.

20706

What the numbers mean in Seabrook CDP

Housing cost measured against local earnings.

A household earning the Seabrook CDP median would spend about 22.7% 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 3.9× the median household income; nationally that ratio sits near 4.5×. Poverty affects 10.4% of residents and 65.6% of households own their home.

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

Seabrook CDP, MD in context

How this area compares with national benchmarks.

Seabrook CDP is a mid-size town in Maryland, with 18,495 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #75 of 536 ranked by population — larger than 86% of them. The median age here is 35.9 years against 39.1 nationally, a slightly younger profile than the country as a whole. 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 Seabrook CDP earn a median of $96,033 a year, 22.3% above the national figure of $78,538 and 12% below the $109,026 median for the 332 Maryland cities we cover. Median household income counts every pre-tax dollar arriving at an address — wages, self-employment, Social Security, pensions, interest and public assistance — for everyone living there, so multi-earner households pull the figure up even where individual pay is modest. Poverty reaches 10.4% of residents here, below the 12.4% national rate.

The typical owner-occupied home in Seabrook CDP is valued at $377,900, 24.6% above the national figure and 5% below the $397,200 peer median, while median gross rent runs $1,817 a month, 29.2% above the national figure, or roughly $21,804 across a full year. A household on the local median income would put about 22.7% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is within the standard affordability guideline. The home-price-to-income ratio works out to 3.9×, against roughly 3.9× nationally, so buying is easier here than in the average US market. 65.6% of occupied homes are owner-occupied versus 65% nationally, so the market leans toward owners. 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.

All values below were released by the Census for this exact geography, with no gap-filling on our side. 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 Seabrook CDP?: Seabrook CDP has 18,495 residents on Census ACS 2019-2023 ACS 5-year estimates, ranking #75 of 536 in Maryland.
What is the median household income in Seabrook CDP?: Median household income in Seabrook CDP is $96,033 a year, 22.3% above the national figure of $78,538.
How much does it cost to rent or buy in Seabrook CDP?: Median gross rent is $1,817 a month and the median home value is $377,900, so rent absorbs about 22.7% of median household income.
Is Seabrook CDP affordable compared with the rest of the US?: Homes cost about 3.9× the local median income here versus roughly 3.9× nationally, so Seabrook CDP is more affordable to buy in than the typical US market, and rent takes 22.7% of median income against the 30% cost-burden line.
How current is this Seabrook 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.