Seabrook, Maryland Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Seabrook, Maryland is 18,495 as of the 2023 American Community Survey, making it the 75th-largest city in Maryland. The median household income is $96,033, the median home value is $377,900, and the median age is 35.9.
18,495
Population
6015
People / sq mi
$96,033
Median Income
$377,900
Median Home Value
Get Seabrook's next ACS population data
Subscribe for Population Review updates by email. No spam, unsubscribe anytime.
Seabrook covers 3.1 sq mi of land at 6015 people per square mile.
About Seabrook, MD
Seabrook stands apart on settlement density — it is among the most densely settled of US cities, at roughly 6,015 people per square mile. Seabrook is a city in Maryland with a population of 18,495.
Household earnings are middling, with a median of $96,033 — above the US median of $78,538. About 8.0% of residents live below the federal poverty level, below the national 12.4%. Median home value is $377,900, with typical rent around $1,817.
34.2% of adults 25 and older hold a bachelor’s degree, near the national average of 35.0%. Around 12.9% of workers work from home, below the national 14.0%, and the average commute runs about 35 minutes each way.
That density explains much of the rest of the profile in Seabrook: denser places lean toward renting, shorter commutes by transit, and a younger working-age mix.
Race & Ethnicity
| White | 7.7% |
| Black or African American | 59.1% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 2.2% |
| Two or More Races | 0.0% |
Economy & Income
$96,033
Median Household Income
$37,244
Per Capita Income
8.0%
Poverty Rate
4.8%
Unemployment Rate
Housing
$377,900
Median Home Value
$1,817
Median Rent
65.6%
Owner-Occupied
Education
84.2%
High School+
34.2%
Bachelor's+
Commute
5.9%
Drive Alone
69.4%
Public Transit
12.9%
Work From Home
35.3 min
Avg Commute
Community Profile
32.8%
Foreign Born
56.9%
Non-English at Home
3.2%
Veterans
10.7%
With Disability
90.8%
Health Insurance
98.1%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 28.2% |
| Finance, Insurance & Real Estate | 13.8% |
| Construction | 10.8% |
| Public Administration | 9.3% |
| Education, Health Care & Social Services | 6.3% |
| Retail Trade | 6.2% |
| Information | 4.7% |
| Arts, Entertainment & Food Services | 3.3% |
| Manufacturing | 3.1% |
| Agriculture & Mining | 0.6% |
| Transportation & Warehousing | 0.4% |
Largest cities in Maryland
Largest counties in Maryland
Part of Maryland
Metro areas in Maryland
City rankings
Frequently Asked Questions
Seabrook, Maryland has a population of 18,495 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 75th-largest city in Maryland.
The median household income in Seabrook, Maryland is $96,033, with 8.0% of residents living below the federal poverty level.
The median home value in Seabrook, Maryland is $377,900, with median monthly rent at $1,817 and a homeownership rate of 65.6%.
The median age in Seabrook, Maryland is 35.9 years. The population is 45.9% male and 54.1% female.
Where to stay in Seabrook
Visiting or relocating to Seabrook, MD? Compare hotels and short-term rentals across the metro — live availability and prices.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
More from Maryland
Population 577,193
Population 105,871
Population 90,521
Population 82,541
Population 82,129
Full rankings of Maryland cities by population
Statewide data for Maryland
Population, race, income, age, and trends across Maryland
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.