21005 ZIP Code — Aberdeen Proving Ground, MD

Harford County, Maryland

ZIP code 21005 is located in Aberdeen Proving Ground, Maryland, within Harford County. It covers approximately 33.35 square miles and serves a population of 2,703 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 667/443.

About ZIP code 21005

The housing stock consists of a mix of housing types. Most homes were built in the 1980s, giving the area an established character. Renters make up the majority at 99%, typical of denser urban areas.

Median household income is $118,750.

The dominant occupation class is management, business, and professional, with public administration as the leading industry. The average commute of 16 minutes is near the national average.

Educational attainment is high — 52% of residents hold a bachelor's degree or higher, well above the national average of 33%.

Notable community characteristics include a notable veteran presence at 31% of civilians, above the national average of 7%.

Overall, ZIP code 21005 reflects a community defined by a highly educated population and a strong veteran community.

2,703

population

33.35

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

21005 ZIP code map

Cities in ZIP code 21005

Below are the cities the US Postal Service accepts for ZIP code 21005. Using any city not on this list may result in mail delivery delays.

City	Status
Aberdeen Proving Ground	Acceptable
Aberdeen Proving Ground	Preferred

Nearby ZIP codes

21001 Aberdeen (4.8 mi) 21017 Belcamp (5 mi) 21040 Edgewood (7.2 mi) 21610 Betterton (7.4 mi) 21009 Abingdon (7.4 mi) 21078 Havre De Grace (8.3 mi) 21010 Gunpowder (8.8 mi) 21678 Worton (9.6 mi) 21028 Churchville (9.9 mi) 21085 Joppa (10.4 mi) 21015 Bel Air (10.6 mi) 21903 Perryville (11.2 mi)

Demographics updated 05/2026

Population
Total population	2,703
Population density	81 / sq mi
State FIPS	24
County FIPS	025

Geography
Land area	33.35 sq mi
Water area	1.03 sq mi
Latitude	39.4367
Longitude	-76.1574
Timezone	Eastern (ET)
Area code	667/443

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	15.2%	25.4%	28.2%
$50k – $100k	25.6%	28.0%	28.2%
$100k – $200k	47.3%	34.2%	30.1%
Over $200k	11.9%	12.4%	13.4%

Demographics & statistics

2,703

Population

People per sq mi

30.0

Median age

$118,750

Median household income

$41,243

Per capita income

Median home value

$1,854

Median monthly rent

1.3%

Home ownership

1.9%

Poverty rate

6.3%

Unemployment

164

Housing units

51.9%

Bachelor's or higher

Age distribution

Male Female

106

Under 5

107

103

5–9

104

126

10–14

128

167

15–19

169

20–24

233

25–34

238

203

35–44

207

130

45–54

133

55–59

60–64

65–74

75–84

← Male

Female →

Age summary

Group	Count	%
Under 18	863	31.9%
18 and over	1,840	68.1%
65 and over	101	3.7%
Median age	30.0 years

Race & ethnicity

White 43.2%

Black or African American 38.4%

Two or more races 8.4%

Hispanic or Latino 6.6%

Other race 2.5%

Asian 0.6%

American Indian / Alaska Native 0.3%

Group	Count	%
White	1,251	43.2%
Black or African American	1,111	38.4%
Two or more races	243	8.4%
Hispanic or Latino	191	6.6%
Other race	71	2.5%
Asian	17	0.6%
American Indian / Alaska Native	10	0.3%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	15.2%	25.4%	28.2%
$50k – $100k	25.6%	28.0%	28.2%
$100k – $200k	47.3%	34.2%	30.1%
Over $200k	11.9%	12.4%	13.4%

Under $10k 1.9%

$15k–$25k 0.7%

$25k–$35k 6.2%

$35k–$50k 6.5%

$50k–$75k 12.0%

$75k–$100k 10.4%

$100k–$150k 31.7%

$150k–$200k 17.6%

$200k+ 12.9%

Range	% of households
Under $10k	1.9%
$15k–$25k	0.7%
$25k–$35k	6.2%
$35k–$50k	6.5%
$50k–$75k	12.0%
$75k–$100k	10.4%
$100k–$150k	31.7%
$150k–$200k	17.6%
$200k+	12.9%
Median income	$118,750

Housing

Home values

$300k–$500k 100.0%

Housing overview

Metric	Value
Median home value	$0
Median rent / month	$1,854
Owner occupied	1.3%
Renter occupied	98.7%
Vacant	15.5%
Single-family detached	6.7%
Large apartment buildings	12.8%
Mobile homes	0.0%
Median rooms	6.1
Avg household size (owned)	2.18

Year built

Era	%
2020 or later	0.0%
2010–2019	5.0%
2000–2009	11.6%
1990–1999	8.2%
1980–1989	28.2%
1970–1979	15.9%
1960–1969	21.5%
1950–1959	2.9%
1940–1949	3.3%
1939 or earlier	3.4%

Bedrooms

Size	% of units
No bedroom (studio)	6.5%
1 bedroom	6.4%
2 bedrooms	20.4%
3 bedrooms	40.2%
4 bedrooms	25.0%
5+ bedrooms	1.5%

Vehicles per household

Vehicles	% of households
No vehicle	0.0%
1 vehicle	38.1%
2 vehicles	42.3%
3 or more	19.5%

Heating fuel

Fuel type	%
Utility gas	11.6%
Electricity	83.3%
Fuel oil	0.8%
Solar	2.6%

Households & families

Household type	Count	%
Married-couple family	425	51.0%
Cohabiting couple	49	5.9%
Male householder, no spouse	228	27.3%
Female householder, no spouse	132	15.8%
Households with children under 18	359	43.0%
Households with seniors (65+)	87	10.4%
Average household size	3.12

Marital status

Status	Male	Female
Never married	39.7%	37.6%
Married	46.3%	43.4%
Separated	3.2%	3.5%
Widowed	0.7%	1.6%
Divorced	10.2%	13.9%

Education

Less than 9th grade 0.9%

Some HS, no diploma 4.1%

HS graduate 11.2%

Some college, no degree 24.7%

Associate's degree 7.2%

Bachelor's degree 32.6%

Graduate / professional 19.4%

Metric	%
HS diploma or higher	95.0%
Bachelor's or higher	51.9%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	81	8.2%
Kindergarten	32	3.2%
Elementary school	361	36.6%
High school	219	22.2%
College / grad school	294	29.8%

Employment

Industry of employment

Public administration 32.0%

Education & healthcare 20.5%

Professional & management 16.3%

Arts, food & hospitality 8.2%

Transportation & utilities 5.9%

Retail trade 5.5%

Finance & real estate 4.3%

Manufacturing 3.0%

Construction 2.6%

Wholesale trade 1.6%

Occupation

Category	%
Management, business & arts	47.8%
Service	15.8%
Sales & office	22.0%
Natural resources & construction	4.0%
Production & transportation	10.4%

Employment type

Type	%
Private sector	55.2%
Government	44.8%
Self-employed	0.0%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	73.8%
Carpool	1.5%
Public transit	0.0%
Walk	6.9%
Work from home	14.8%
Other means	2.9%
Avg commute (minutes)	15.9

Poverty

All people 1.9%

Under 18 years 1.5%

18 and over 2.1%

Married-couple families 0.0%

Female-led households 26.9%

Income support

Source	% of households
Social Security	7.2%
Retirement income	24.6%
Supplemental Security	0.0%
Cash public assistance	5.6%
Food stamps / SNAP	0.0%

Health indicators

Condition	%
Obesity	30.2%
High blood pressure	17.9%
High cholesterol	15.4%
Diabetes	3.3%
Heart disease	1.5%
Stroke	0.9%
Asthma	9.3%
Arthritis	7.4%
Kidney disease	1.0%
Pulmonary disease	2.4%
Cancer	1.4%

Behavior / access	%
Smoking	14.3%
Binge drinking	22.8%
No physical activity	17.0%
Less than 7 hrs sleep	33.6%
Depression	18.1%
Fair or poor health	8.1%
Poor mental health	16.1%
Poor physical health	5.2%
No health insurance	12.8%
Visited doctor (checkup)	69.9%
Visited dentist	60.8%
Cholesterol screening	80.8%
Teeth loss	10.5%

Veterans & disability

Veterans	Count	%
Civilian veterans	495	31.4%

Disability	%
Any disability	8.4%
Under 18	7.1%
18–64 years	6.8%
65 and over	43.6%

Health insurance coverage

Type	%
Private insurance	92.6%
Public insurance	18.8%
No insurance	1.6%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	2,490	92.1%
Spanish	112	4.5%
Other Indo-European	88	3.5%
Asian & Pacific Islander	10	0.4%
Other languages	14	0.6%

Place of birth & citizenship

Origin	Count	%
Native born (US)	2,599	96.2%
Born in same state	2,342	86.6%
Born in different state	583	21.6%
Foreign born	257	9.5%
Naturalized citizen	104	3.8%
Not a US citizen	78	75.0%

Ancestry

Ancestry	Count	%
Italian	246	9.1%
Arab	246	9.1%
French	157	5.8%
English	21	0.8%

Ancestry	Count	%
Dutch	11	0.4%
German	7	0.3%
Norwegian	6	0.2%

Technology access

Metric	% of households
Computer access	30.9%
Internet access	98.8%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 21005

What city is ZIP code 21005 in?

ZIP code 21005 is primarily assigned to Aberdeen Proving Ground, Maryland.

What county is ZIP code 21005 in?

ZIP code 21005 falls within Harford County, Maryland.

Is ZIP code 21005 mostly rentals?

99% of occupied units in ZIP code 21005 are renter-occupied.

Is ZIP code 21005 family-oriented?

32% of residents in ZIP code 21005 are under 18, reflecting a younger, family-oriented community.

Does ZIP code 21005 have a large veteran population?

31% of civilians in ZIP code 21005 are veterans, above the national average of ~7%.

How educated is the population of ZIP code 21005?

52% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

What timezone is ZIP code 21005 in?

ZIP code 21005 observes the EST timezone.