21405 ZIP Code — Annapolis, MD

Anne Arundel County, Maryland

ZIP code 21405 is located in Annapolis, Maryland, within Anne Arundel County. It covers approximately 1.02 square miles and serves a population of 383 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 410/443.

About ZIP code 21405

The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $966,500.

The gap between median ($150,208) and mean household income suggests income inequality — a small number of higher earners pull the average up. 49% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with professional and management as the leading industry. Remote work is prevalent — 34% of workers work from home.

Educational attainment is high — 79% of residents hold a bachelor's degree or higher, well above the national average of 33%.

Overall, ZIP code 21405 reflects a community defined by a highly educated population, high homeownership, a high rate of remote workers, and a significant Social Security-dependent population.

383

population

1.02

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

21405 ZIP code map

Cities in ZIP code 21405

Below are the cities the US Postal Service accepts for ZIP code 21405. Using any city not on this list may result in mail delivery delays.

City	Status
Annapolis	Acceptable
Annapolis	Acceptable
Annapolis	Preferred

Nearby ZIP codes

21401 Annapolis (2.3 mi) 21032 Crownsville (3.1 mi) 21012 Arnold (3.2 mi) 21146 Severna Park (3.4 mi) 21412 Annapolis (4.5 mi) 21411 Annapolis (4.5 mi) 21402 Annapolis (4.9 mi) 21409 Annapolis (5.2 mi) 21108 Millersville (5.3 mi) 21140 Riva (5.6 mi) 21054 Gambrills (6.2 mi) 21403 Annapolis (6.6 mi)

Demographics updated 05/2026

Population
Total population	383
Population density	375 / sq mi
State FIPS	24
County FIPS	003

Geography
Land area	1.02 sq mi
Water area	0.89 sq mi
Latitude	39.0261
Longitude	-76.5504
Timezone	Eastern (ET)
Area code	410/443

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	5.8%	20.1%	28.2%
$50k – $100k	22.5%	27.4%	28.2%
$100k – $200k	49.7%	36.3%	30.1%
Over $200k	22.0%	16.2%	13.4%

Demographics & statistics

383

Population

375

People per sq mi

59.0

Median age

$150,208

Median household income

$80,294

Per capita income

$966,500

Median home value

Median monthly rent

100.0%

Home ownership

12.5%

Poverty rate

0.0%

Unemployment

251

Housing units

78.5%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

25–34

35–44

45–54

55–59

60–64

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	67	17.5%
18 and over	316	82.5%
65 and over	140	36.6%
Median age	59.0 years

Race & ethnicity

White 100%

Group	Count	%
White	383	100%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	5.8%	20.1%	28.2%
$50k – $100k	22.5%	27.4%	28.2%
$100k – $200k	49.7%	36.3%	30.1%
Over $200k	22.0%	16.2%	13.4%

$15k–$25k 14.4%

$35k–$50k 6.0%

$50k–$75k 6.6%

$75k–$100k 10.2%

$100k–$150k 12.0%

$150k–$200k 17.4%

$200k+ 33.5%

Range	% of households
$15k–$25k	14.4%
$35k–$50k	6.0%
$50k–$75k	6.6%
$75k–$100k	10.2%
$100k–$150k	12.0%
$150k–$200k	17.4%
$200k+	33.5%
Median income	$150,208

Housing

Home values

$500k–$1M 55.7%

$1M+ 44.3%

Housing overview

Metric	Value
Median home value	$966,500
Median rent / month	$0
Owner occupied	100.0%
Renter occupied	0.0%
Vacant	33.5%
Single-family detached	100.0%
Large apartment buildings	0.0%
Mobile homes	0.0%
Median rooms	8.0
Avg household size (owned)	2.29

Year built

Era	%
2020 or later	0.0%
2010–2019	21.1%
2000–2009	3.2%
1990–1999	6.0%
1980–1989	0.0%
1970–1979	0.0%
1960–1969	12.7%
1950–1959	4.4%
1940–1949	29.1%
1939 or earlier	23.5%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	0.0%
2 bedrooms	0.0%
3 bedrooms	34.7%
4 bedrooms	60.6%
5+ bedrooms	4.8%

Vehicles per household

Vehicles	% of households
No vehicle	0.0%
1 vehicle	26.9%
2 vehicles	73.1%
3 or more	0.0%

Heating fuel

Fuel type	%
Electricity	45.5%
Propane / LP gas	38.9%
Fuel oil	15.6%

Households & families

Household type	Count	%
Married-couple family	134	80.2%
Cohabiting couple	0	0.0%
Male householder, no spouse	0	0.0%
Female householder, no spouse	33	19.8%
Households with children under 18	30	18.0%
Households with seniors (65+)	81	48.5%
Average household size	2.29

Marital status

Status	Male	Female
Never married	7.9%	0.0%
Married	92.1%	80.0%
Separated	0.0%	0.0%
Widowed	0.0%	13.3%
Divorced	0.0%	6.7%

Education

Less than 9th grade 0.0%

Some HS, no diploma 0.0%

HS graduate 0.0%

Some college, no degree 16.8%

Associate's degree 4.7%

Bachelor's degree 47.8%

Graduate / professional 30.7%

Metric	%
HS diploma or higher	100.0%
Bachelor's or higher	78.5%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	10	16.7%
Kindergarten	11	18.3%
Elementary school	29	48.3%
High school	0	0.0%
College / grad school	10	16.7%

Employment

Industry of employment

Professional & management 40.7%

Finance & real estate 15.0%

Manufacturing 13.6%

Education & healthcare 13.6%

Arts, food & hospitality 8.6%

Public administration 8.6%

Occupation

Category	%
Management, business & arts	76.4%
Service	8.6%
Sales & office	15.0%
Natural resources & construction	0.0%
Production & transportation	0.0%

Employment type

Type	%
Private sector	75.0%
Government	17.1%
Self-employed	7.9%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	66.4%
Carpool	0.0%
Public transit	0.0%
Walk	0.0%
Work from home	33.6%
Other means	0.0%
Avg commute (minutes)	0.0

Poverty

All people 12.5%

Under 18 years 0.0%

18 and over 15.2%

Married-couple families 17.9%

Female-led households 0.0%

Income support

Source	% of households
Social Security	48.5%
Retirement income	36.5%
Supplemental Security	0.0%
Cash public assistance	0.0%
Food stamps / SNAP	0.0%

Health indicators

Condition	%
Obesity	28.6%
High blood pressure	37.2%
High cholesterol	39.6%
Diabetes	9.3%
Heart disease	6.9%
Stroke	2.5%
Asthma	8.0%
Arthritis	28.4%
Kidney disease	2.8%
Pulmonary disease	4.9%
Cancer	9.7%

Behavior / access	%
Smoking	7.7%
Binge drinking	13.9%
No physical activity	14.6%
Less than 7 hrs sleep	27.1%
Depression	16.7%
Fair or poor health	8.0%
Poor mental health	9.8%
Poor physical health	7.4%
No health insurance	4.8%
Visited doctor (checkup)	80.2%
Visited dentist	80.2%
Cholesterol screening	96.6%
Teeth loss	4.7%

Veterans & disability

Veterans	Count	%
Civilian veterans	23	7.3%

Disability	%
Any disability	5.2%
Under 18	0.0%
18–64 years	0.0%
65 and over	14.3%

Health insurance coverage

Type	%
Private insurance	91.4%
Public insurance	33.9%
No insurance	2.6%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	365	95.3%
Spanish	0	0.0%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	383	100.0%
Born in same state	375	97.9%
Born in different state	165	43.1%
Foreign born	8	2.1%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
Italian	106	27.7%
French	88	23%

Ancestry	Count	%
Arab	32	8.4%

Technology access

Metric	% of households
Computer access	43.6%
Internet access	100.0%

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

Frequently asked questions about ZIP code 21405

What city is ZIP code 21405 in?

ZIP code 21405 is primarily assigned to Annapolis, Maryland.

What county is ZIP code 21405 in?

ZIP code 21405 falls within Anne Arundel County, Maryland.

How educated is the population of ZIP code 21405?

79% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

Does ZIP code 21405 have an older population?

37% of residents in ZIP code 21405 are 65 or older, above the national average of ~17%.

Does ZIP code 21405 have a large retiree population?

49% of households in ZIP code 21405 receive Social Security income, suggesting a significant retiree or disability population.

What is the median household income in ZIP code 21405?

The median household income in ZIP code 21405 is $150,208, above the national median of ~$75,000.

What timezone is ZIP code 21405 in?

ZIP code 21405 observes the EST timezone.