Zip Code 21639 - Population, Income & Demographics

The median income of households in 21639 was $59,274. An estimated 2.2% of households had income below $10,000 a year and 4.7% had income of $200,000 or more.

An estimated 71.9% of households received earnings. An estimated 40% of households received Social Security and an estimated 27.4 % of households received retirement income other than Social Security. The average income from Social Security was $22,038. These income sources are not mutually exclusive; that is, some households received income from more than one source.

In 2019-2023, 14.3 % of people were in poverty. An estimated 24.9% of children under 18 were below the poverty level, compared with 7.7% of people 65 years old and over. An estimated 10.9% of people 18 to 64 years were below the poverty level.

In 2019-2023, 16.7 % of households received SNAP (the Supplemental Nutrition Assistance Program). An estimated 56.6% of households that received SNAP had children under 18, and 30.6% of households that received SNAP had one or more people 60 years and over. An estimated 54.8% of all households receiving SNAP were families with a female householder and no spouse present.

Among the civilian noninstitutionalized population in 21639 in 2019-2023, 87.6% had health insurance coverage and 12.4% did not have health insurance coverage. Private coverage was 52.1% and public coverage was 47.9%, respectively. The percentage of children under the age of 19 with no health insurance coverage was 5.1%.

In 2019-2023, 21639 had a total population of 4,621 - 2,363 (51.1%) females and 2,258 (48.9%) males. The median age was 37.3 years. An estimated 28.2% of the population was under 18 years, 30.4% was 19 to 44 years, 24.3% was 45 to 64 years, and 15.1 % was 65 years and older.

In 2019-2023, there were 1,682 households in 21639. The average household size was 2.74 people.

Married-couple households made up 47.6% of the households in 21639 while cohabiting couple households made up 7.8% of households. Female householders with no spouse or partner present were 24.5% of all households, while 20% of households had male householders with no spouse or partner present. Some households had one person, as 19.1% of households were male householders living alone, and 11.5% were female householders living alone, for a total of 30.6% of all households.

In 21639, 40.1% of all households had one or more people under the age of 18; 33.5% of all households had one or more people 65 years and over.

In 2019-2023, an estimated 88.7% of the people living in 21639 were U.S. natives. 64.8% of the 21639 population were living in the state where they were born.

Approximately 11.3% of 21639 residents in 2019-2023 were foreign-born. 6.5% of foreign-born were naturalized U.S. citizens and an estimated 54.6 % entered the country before the year 2010.

Foreign-born residents of 21639 come from different parts of the world. The bar graph below displays the percentage of foreign-born from each world region of birth in 2019-2023 for 21639.

Among people at least five years old living in 21639 in 2019-2023, 16.1 % spoke a language other than English at home. Spanish was spoken by 15.1% of people at least five years old; 10.9% reported that they did not speak English "very well."

In 2019-2023, 91.1 % of the people at least one year old living in 21639 were living in the same house one year earlier.

In 2019-2023, 83.2 % of people 25 years and over had at least graduated from high school and 12.2% had a bachelor's degree or higher. An estimated 16.8% did not complete high school.

The total school enrollment in 21639 was 1,197 in 2019-2023. Nursery school enrollment was 64 and kindergarten through 12th grade enrollment was 858. College or graduate school enrollment was 275.

In 21639, among the civilian noninstitutionalized population in 2019-2023, 11.4 % reported a disability. The likelihood of having a disability varied by age - from 3.8% of people under 18 years old, to 10.1% of people 18 to 64 years old, and to 30.2% of those 65 and over.

In 21639, 60.5 % of the population 16 and over were employed; 37.5% were not currently in the labor force.

An estimated 66.1% of the people employed were private wage and salary workers; 19% were federal, state, or local government workers; and 14.8 % were self-employed in their own (not incorporated) business.

In 2019-2023, the civilian employed population 16 years and older in 21639 worked in the following industries:

An estimated 77.4% of 21639 workers drove to work alone in 2019-2023, and 8.9% carpooled. Among those who commuted to work, it took them on average 36.5 minutes to get to work.

In 2019-2023, 21639 had a total of 1,890 housing units. Of these housing units, 80.6% were single-family houses either not attached to any other structure or attached to one or more structures (commonly referred to as "townhouses" or "row houses"). 13.7% of the housing units were located in multi-unit structures, or those buildings that contained two or more apartments. 5.8% were mobile homes, while any remaining housing units were classified as "other," which included boats, recreational vehicles, vans, etc.

2.1% of the housing inventory was comprised of houses built since 2010, while 19.8% of the houses were first built in 1939 or earlier. The median number of rooms in all housing units in 21639 was 6 rooms, and of these housing units 71.5% had three or more bedrooms.

In 2019-2023, 21639 had 1,682 housing units that were occupied or had people living in them, while the remaining 208 were vacant. Of the occupied housing units, the percentage of these houses occupied by owners (also known as the homeownership rate) was 71.4% while renters occupied 28.6%. The average household size of owner-occupied houses was 2.73 and in renter-occupied houses it was 2.76.

5.5% of householders of these occupied houses had moved into their house since 2021, while 8.5% moved into their house in 1989 or earlier. Households without a vehicle available for personal use comprised 4.9% and another 45.4% had three or more vehicles available for use.

The following chart provides the primary fuel used to heat houses in 21639:

In 2019-2023, the median property value for owner-occupied houses in 21639 was $270,300.

Of the owner-occupied households, 69.8 % had a mortgage. 30.2% owned their houses "free and clear," that is without a primary mortgage or loan on the house. The median monthly housing costs for owners with a mortgage was $1,795 and for owners without a mortgage it was $658.

For renter-occupied houses, the median gross rent for 21639 was $1,017. Gross rent includes the monthly contract rent and any monthly payments made for electricity, gas, water and sewer, and any other fuels to heat the house.