21666 ZIP Code — Stevensville, MD

Queen Annes County, Maryland

ZIP code 21666 is located in Stevensville, Maryland, within Queen Annes County. It covers approximately 21.87 square miles and serves a population of 14,193 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 410/443/667.

About ZIP code 21666

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1970s, giving the area an established character. Median home value is $458,200. Owner-occupancy is high at 80%, well above the national average.

The gap between median ($119,154) and mean household income suggests income inequality — a small number of higher earners pull the average up. The poverty rate of 5% is below the national average. 31% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 32 minutes is near the national average.

Educational attainment is near the national average, with 41% of residents holding a bachelor's degree or higher.

Overall, ZIP code 21666 reflects a community defined by high homeownership and a significant Social Security-dependent population.

14,193

population

21.87

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

21666 ZIP code map

Cities in ZIP code 21666

Below are the cities the US Postal Service accepts for ZIP code 21666. Using any city not on this list may result in mail delivery delays.

City	Status
Stevensville	Preferred

Nearby ZIP codes

21619 Chester (3.1 mi) 21638 Grasonville (6.8 mi) 21402 Annapolis (8.3 mi) 21403 Annapolis (8.5 mi) 21409 Annapolis (8.7 mi) 21411 Annapolis (9 mi) 21412 Annapolis (9 mi) 21658 Queenstown (10.5 mi) 21676 Wittman (10.8 mi) 21663 Saint Michaels (10.9 mi) 21012 Arnold (11.3 mi) 21037 Edgewater (11.4 mi)

Demographics updated 05/2026

Population
Total population	14,193
Population density	649 / sq mi
State FIPS	24
County FIPS	035

Geography
Land area	21.87 sq mi
Water area	10.94 sq mi
Latitude	38.9380
Longitude	-76.3327
Timezone	Eastern (ET)
Area code	410/443/667

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	21.4%	22.7%	28.2%
$50k – $100k	24.0%	27.5%	28.2%
$100k – $200k	38.5%	35.4%	30.1%
Over $200k	16.1%	14.4%	13.4%

Demographics & statistics

14,193

Population

649

People per sq mi

44.4

Median age

$119,154

Median household income

$56,949

Per capita income

$458,200

Median home value

$1,809

Median monthly rent

79.8%

Home ownership

4.7%

Poverty rate

4.8%

Unemployment

4,650

Housing units

41.4%

Bachelor's or higher

Age distribution

Male Female

343

Under 5

333

419

5–9

407

418

10–14

405

551

15–19

535

344

20–24

333

812

25–34

788

787

35–44

765

1,075

45–54

1,043

514

55–59

500

511

60–64

496

932

65–74

904

278

75–84

269

219

85+

212

← Male

Female →

Age summary

Group	Count	%
Under 18	3,044	21.4%
18 and over	11,149	78.6%
65 and over	2,814	19.8%
Median age	44.4 years

Race & ethnicity

White 86.9%

Two or more races 5%

Black or African American 4.7%

Asian 1.9%

Hispanic or Latino 1.4%

Other race 0.2%

Group	Count	%
White	12,506	86.9%
Two or more races	714	5%
Black or African American	673	4.7%
Asian	271	1.9%
Hispanic or Latino	198	1.4%
Other race	29	0.2%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	21.4%	22.7%	28.2%
$50k – $100k	24.0%	27.5%	28.2%
$100k – $200k	38.5%	35.4%	30.1%
Over $200k	16.1%	14.4%	13.4%

Under $10k 4.3%

$10k–$15k 2.1%

$15k–$25k 5.2%

$25k–$35k 3.4%

$35k–$50k 5.0%

$50k–$75k 10.0%

$75k–$100k 9.3%

$100k–$150k 24.3%

$150k–$200k 12.2%

$200k+ 24.1%

Range	% of households
Under $10k	4.3%
$10k–$15k	2.1%
$15k–$25k	5.2%
$25k–$35k	3.4%
$35k–$50k	5.0%
$50k–$75k	10.0%
$75k–$100k	9.3%
$100k–$150k	24.3%
$150k–$200k	12.2%
$200k+	24.1%
Median income	$119,154

Housing

Home values

Under $50k 0.5%

$50k–$100k 0.2%

$100k–$150k 0.4%

$150k–$200k 3.5%

$200k–$300k 8.0%

$300k–$500k 49.2%

$500k–$1M 30.1%

$1M+ 8.1%

Housing overview

Metric	Value
Median home value	$458,200
Median rent / month	$1,809
Owner occupied	79.8%
Renter occupied	20.2%
Vacant	4.5%
Single-family detached	86.6%
Large apartment buildings	1.4%
Mobile homes	1.0%
Median rooms	6.8
Avg household size (owned)	2.71

Year built

Era	%
2020 or later	1.6%
2010–2019	5.5%
2000–2009	16.5%
1990–1999	18.5%
1980–1989	22.1%
1970–1979	24.2%
1960–1969	4.2%
1950–1959	4.1%
1940–1949	0.0%
1939 or earlier	3.4%

Bedrooms

Size	% of units
No bedroom (studio)	0.3%
1 bedroom	5.2%
2 bedrooms	9.8%
3 bedrooms	46.5%
4 bedrooms	30.1%
5+ bedrooms	8.1%

Vehicles per household

Vehicles	% of households
No vehicle	3.9%
1 vehicle	22.8%
2 vehicles	34.3%
3 or more	39.0%

Heating fuel

Fuel type	%
Utility gas	3.8%
Electricity	68.5%
Propane / LP gas	13.1%
Fuel oil	9.3%
Wood	4.5%
No fuel used	0.3%

Households & families

Household type	Count	%
Married-couple family	3,276	59.6%
Cohabiting couple	360	6.5%
Male householder, no spouse	830	15.1%
Female householder, no spouse	1,033	18.8%
Households with children under 18	1,823	33.2%
Households with seniors (65+)	1,987	36.1%
Average household size	2.58

Marital status

Status	Male	Female
Never married	29.4%	22.1%
Married	58.0%	57.5%
Separated	1.0%	2.2%
Widowed	1.7%	10.5%
Divorced	9.9%	7.7%

Education

Less than 9th grade 0.8%

Some HS, no diploma 5.7%

HS graduate 26.1%

Some college, no degree 18.2%

Associate's degree 7.7%

Bachelor's degree 27.3%

Graduate / professional 14.1%

Metric	%
HS diploma or higher	93.5%
Bachelor's or higher	41.4%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	203	6.1%
Kindergarten	69	2.1%
Elementary school	1,344	40.5%
High school	899	27.1%
College / grad school	802	24.2%

Employment

Industry of employment

Education & healthcare 20.7%

Professional & management 16.7%

Construction 11.1%

Retail trade 10.7%

Arts, food & hospitality 8.7%

Public administration 8.4%

Manufacturing 6.0%

Finance & real estate 4.6%

Other services 4.4%

Wholesale trade 4.1%

Transportation & utilities 2.8%

Information 1.7%

Agriculture & mining 0.1%

Occupation

Category	%
Management, business & arts	46.4%
Service	13.6%
Sales & office	23.5%
Natural resources & construction	9.2%
Production & transportation	7.3%

Employment type

Type	%
Private sector	78.3%
Government	15.2%
Self-employed	5.1%
Unpaid family workers	1.5%

Commute

Method	%
Drive alone	82.8%
Carpool	5.4%
Public transit	0.0%
Walk	0.6%
Work from home	11.2%
Other means	0.0%
Avg commute (minutes)	32.4

Poverty

All people 4.7%

Under 18 years 3.6%

18 and over 5.1%

Married-couple families 1.6%

Female-led households 12.3%

Income support

Source	% of households
Social Security	31.3%
Retirement income	29.6%
Supplemental Security	3.4%
Cash public assistance	2.5%
Food stamps / SNAP	8.2%

Health indicators

Condition	%
Obesity	29.4%
High blood pressure	32.2%
High cholesterol	31.8%
Diabetes	8.1%
Heart disease	5.0%
Stroke	2.2%
Asthma	8.9%
Arthritis	24.8%
Kidney disease	2.3%
Pulmonary disease	5.0%
Cancer	6.9%

Behavior / access	%
Smoking	13.7%
Binge drinking	16.9%
No physical activity	16.6%
Less than 7 hrs sleep	30.6%
Depression	17.7%
Fair or poor health	8.8%
Poor mental health	12.8%
Poor physical health	7.3%
No health insurance	7.6%
Visited doctor (checkup)	72.8%
Visited dentist	74.6%
Cholesterol screening	93.3%
Teeth loss	7.7%

Veterans & disability

Veterans	Count	%
Civilian veterans	746	6.7%

Disability	%
Any disability	9.2%
Under 18	4.2%
18–64 years	6.1%
65 and over	24.0%

Health insurance coverage

Type	%
Private insurance	79.8%
Public insurance	33.9%
No insurance	4.0%
Uninsured under 19	0.7%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	13,517	95.2%
Spanish	205	1.5%
Other Indo-European	83	0.6%
Asian & Pacific Islander	23	0.2%
Other languages	90	0.7%

Place of birth & citizenship

Origin	Count	%
Native born (US)	13,533	95.3%
Born in same state	13,415	94.5%
Born in different state	8,285	58.4%
Foreign born	118	0.8%
Naturalized citizen	660	4.7%
Not a US citizen	481	72.9%

Ancestry

Ancestry	Count	%
French	2,619	18.5%
Italian	2,416	17%
Arab	625	4.4%
Polish	140	1%
English	103	0.7%

Ancestry	Count	%
Irish	61	0.4%
Norwegian	39	0.3%
German	24	0.2%
Dutch	17	0.1%

Technology access

Metric	% of households
Computer access	38.7%
Internet access	98.4%

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

Frequently asked questions about ZIP code 21666

What city is ZIP code 21666 in?

ZIP code 21666 is primarily assigned to Stevensville, Maryland.

What county is ZIP code 21666 in?

ZIP code 21666 falls within Queen Annes County, Maryland.

What is the typical home value in ZIP code 21666?

The median home value in ZIP code 21666 is $458,200.

What is the median household income in ZIP code 21666?

The median household income in ZIP code 21666 is $119,154, above the national median of ~$75,000.

What is the population of ZIP code 21666?

ZIP code 21666 has an estimated population of 14,193 residents, with a density of 649 people per square mile.

What timezone is ZIP code 21666 in?

ZIP code 21666 observes the EST timezone.