21617 ZIP Code — Centreville, MD

Queen Annes County, Maryland

ZIP code 21617 is located in Centreville, Maryland, within Queen Annes County. It covers approximately 108.48 square miles and serves a population of 10,401 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 410/443/667.

About ZIP code 21617

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 2000s, giving the area an established character. Median home value is $430,600. Owner-occupancy is high at 79%, well above the national average.

Median household income is $116,827. The poverty rate of 3% is below the national average. 33% 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. An above-average commute of 36 minutes suggests many residents work outside the immediate area.

Educational attainment is near the national average, with 35% of residents holding a bachelor's degree or higher.

Overall, ZIP code 21617 reflects a community defined by high homeownership and a significant Social Security-dependent population.

10,401

population

108.48

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

21617 ZIP code map

Cities in ZIP code 21617

Below are the cities the US Postal Service accepts for ZIP code 21617. Using any city not on this list may result in mail delivery delays.

City	Status
Centreville	Preferred

Nearby ZIP codes

21623 Church Hill (6 mi) 21657 Queen Anne (7 mi) 21644 Ingleside (8.4 mi) 21660 Ridgely (9.7 mi) 21620 Chestertown (9.8 mi) 21658 Queenstown (10.1 mi) 21679 Wye Mills (10.4 mi) 21690 Chestertown (10.7 mi) 21607 Barclay (10.9 mi) 21661 Rock Hall (11.2 mi) 21640 Henderson (11.2 mi) 21668 Sudlersville (12 mi)

Demographics updated 05/2026

Population
Total population	10,401
Population density	96 / sq mi
State FIPS	24
County FIPS	035

Geography
Land area	108.48 sq mi
Water area	8.71 sq mi
Latitude	39.0574
Longitude	-76.0249
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	18.3%	22.7%	28.2%
$50k – $100k	30.0%	27.5%	28.2%
$100k – $200k	37.9%	35.4%	30.1%
Over $200k	13.7%	14.4%	13.4%

Demographics & statistics

10,401

Population

People per sq mi

41.6

Median age

$116,827

Median household income

$51,474

Per capita income

$430,600

Median home value

$1,401

Median monthly rent

79.0%

Home ownership

2.9%

Poverty rate

2.7%

Unemployment

3,254

Housing units

35.1%

Bachelor's or higher

Age distribution

Male Female

205

Under 5

229

386

5–9

430

406

10–14

452

254

15–19

282

328

20–24

366

463

25–34

515

663

35–44

739

649

45–54

723

387

55–59

431

349

60–64

388

420

65–74

467

349

75–84

388

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	2,411	23.2%
18 and over	7,990	76.8%
65 and over	1,756	16.9%
Median age	41.6 years

Race & ethnicity

White 85.3%

Black or African American 7%

Hispanic or Latino 2.9%

Other race 1.9%

Two or more races 1.5%

Asian 1.4%

Group	Count	%
White	9,139	85.3%
Black or African American	746	7%
Hispanic or Latino	311	2.9%
Other race	205	1.9%
Two or more races	161	1.5%
Asian	150	1.4%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	18.3%	22.7%	28.2%
$50k – $100k	30.0%	27.5%	28.2%
$100k – $200k	37.9%	35.4%	30.1%
Over $200k	13.7%	14.4%	13.4%

Under $10k 1.1%

$10k–$15k 1.5%

$15k–$25k 1.8%

$25k–$35k 2.4%

$35k–$50k 10.8%

$50k–$75k 9.6%

$75k–$100k 14.1%

$100k–$150k 26.2%

$150k–$200k 14.7%

$200k+ 17.8%

Range	% of households
Under $10k	1.1%
$10k–$15k	1.5%
$15k–$25k	1.8%
$25k–$35k	2.4%
$35k–$50k	10.8%
$50k–$75k	9.6%
$75k–$100k	14.1%
$100k–$150k	26.2%
$150k–$200k	14.7%
$200k+	17.8%
Median income	$116,827

Housing

Home values

Under $50k 1.0%

$50k–$100k 0.3%

$100k–$150k 0.6%

$150k–$200k 2.1%

$200k–$300k 13.4%

$300k–$500k 54.2%

$500k–$1M 27.2%

$1M+ 1.2%

Housing overview

Metric	Value
Median home value	$430,600
Median rent / month	$1,401
Owner occupied	79.0%
Renter occupied	21.0%
Vacant	8.6%
Single-family detached	89.7%
Large apartment buildings	1.7%
Mobile homes	1.5%
Median rooms	7.5
Avg household size (owned)	2.88

Year built

Era	%
2020 or later	0.2%
2010–2019	13.7%
2000–2009	31.0%
1990–1999	13.2%
1980–1989	6.1%
1970–1979	11.0%
1960–1969	4.8%
1950–1959	8.3%
1940–1949	2.8%
1939 or earlier	8.9%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	2.8%
2 bedrooms	13.3%
3 bedrooms	40.4%
4 bedrooms	31.9%
5+ bedrooms	11.6%

Vehicles per household

Vehicles	% of households
No vehicle	3.9%
1 vehicle	17.4%
2 vehicles	38.7%
3 or more	39.9%

Heating fuel

Fuel type	%
Utility gas	2.1%
Electricity	55.5%
Propane / LP gas	25.6%
Fuel oil	13.5%
Wood	0.5%
Solar	0.9%
No fuel used	0.5%

Households & families

Household type	Count	%
Married-couple family	2,528	68.7%
Cohabiting couple	98	2.7%
Male householder, no spouse	313	8.5%
Female householder, no spouse	739	20.1%
Households with children under 18	1,249	34.0%
Households with seniors (65+)	1,174	31.9%
Average household size	2.78

Marital status

Status	Male	Female
Never married	21.9%	24.8%
Married	67.4%	60.2%
Separated	0.9%	0.7%
Widowed	1.8%	6.2%
Divorced	8.0%	8.0%

Education

Less than 9th grade 0.8%

Some HS, no diploma 3.5%

HS graduate 31.9%

Some college, no degree 20.6%

Associate's degree 8.0%

Bachelor's degree 22.9%

Graduate / professional 12.2%

Metric	%
HS diploma or higher	95.7%
Bachelor's or higher	35.1%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	228	8.2%
Kindergarten	176	6.4%
Elementary school	1,211	43.7%
High school	536	19.3%
College / grad school	620	22.4%

Employment

Industry of employment

Education & healthcare 25.4%

Retail trade 14.2%

Construction 13.5%

Public administration 11.0%

Professional & management 9.3%

Manufacturing 6.6%

Other services 4.5%

Finance & real estate 4.3%

Agriculture & mining 3.2%

Wholesale trade 2.7%

Transportation & utilities 1.9%

Arts, food & hospitality 1.8%

Information 1.6%

Occupation

Category	%
Management, business & arts	43.9%
Service	15.5%
Sales & office	18.2%
Natural resources & construction	13.9%
Production & transportation	8.4%

Employment type

Type	%
Private sector	71.0%
Government	20.3%
Self-employed	8.7%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	71.1%
Carpool	9.8%
Public transit	0.5%
Walk	1.6%
Work from home	16.9%
Other means	0.1%
Avg commute (minutes)	36.0

Poverty

All people 2.9%

Under 18 years 1.9%

18 and over 3.2%

Married-couple families 1.2%

Female-led households 5.5%

Income support

Source	% of households
Social Security	33.2%
Retirement income	28.1%
Supplemental Security	1.2%
Cash public assistance	1.5%
Food stamps / SNAP	7.6%

Health indicators

Condition	%
Obesity	30.1%
High blood pressure	33.7%
High cholesterol	32.1%
Diabetes	8.7%
Heart disease	5.4%
Stroke	2.5%
Asthma	9.1%
Arthritis	25.6%
Kidney disease	2.5%
Pulmonary disease	5.2%
Cancer	7.2%

Behavior / access	%
Smoking	14.1%
Binge drinking	16.5%
No physical activity	17.7%
Less than 7 hrs sleep	31.4%
Depression	17.7%
Fair or poor health	9.4%
Poor mental health	13.0%
Poor physical health	7.6%
No health insurance	8.3%
Visited doctor (checkup)	73.4%
Visited dentist	73.4%
Cholesterol screening	93.1%
Teeth loss	8.4%

Veterans & disability

Veterans	Count	%
Civilian veterans	704	8.8%

Disability	%
Any disability	7.1%
Under 18	3.2%
18–64 years	4.5%
65 and over	22.1%

Health insurance coverage

Type	%
Private insurance	78.5%
Public insurance	31.9%
No insurance	3.7%
Uninsured under 19	0.7%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	9,967	95.8%
Spanish	42	0.4%
Other Indo-European	26	0.3%
Asian & Pacific Islander	0	0.0%
Other languages	16	0.2%

Place of birth & citizenship

Origin	Count	%
Native born (US)	10,168	97.8%
Born in same state	10,059	96.7%
Born in different state	7,382	71.0%
Foreign born	109	1.0%
Naturalized citizen	233	2.2%
Not a US citizen	165	70.8%

Ancestry

Ancestry	Count	%
French	1,524	14.7%
Italian	1,399	13.5%
Arab	663	6.4%
English	143	1.4%

Ancestry	Count	%
Irish	131	1.3%
Polish	105	1%
Norwegian	69	0.7%
German	14	0.1%

Technology access

Metric	% of households
Computer access	35.4%
Internet access	97.7%

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

Frequently asked questions about ZIP code 21617

What city is ZIP code 21617 in?

ZIP code 21617 is primarily assigned to Centreville, Maryland.

What county is ZIP code 21617 in?

ZIP code 21617 falls within Queen Annes County, Maryland.

What is the typical home value in ZIP code 21617?

The median home value in ZIP code 21617 is $430,600.

What is the median household income in ZIP code 21617?

The median household income in ZIP code 21617 is $116,827, above the national median of ~$75,000.

What is the population of ZIP code 21617?

ZIP code 21617 has an estimated population of 10,401 residents, with a density of 96 people per square mile.

What timezone is ZIP code 21617 in?

ZIP code 21617 observes the EST timezone.