21651 ZIP Code — Millington, MD

Kent County, Maryland

ZIP code 21651 is located in Millington, Maryland, within Kent County. It covers approximately 40.58 square miles and serves a population of 2,346 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 410/667.

About ZIP code 21651

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1980s, giving the area an established character. Median home value is $245,300. Owner-occupancy is high at 83%, well above the national average.

Median household income is $76,042. The poverty rate of 7% is below the national average. 38% 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 43 minutes suggests many residents work outside the immediate area.

College attainment at 21% is below the national average, consistent with a trades and production-oriented local economy.

Overall, ZIP code 21651 reflects a community defined by high homeownership and a significant Social Security-dependent population.

2,346

population

40.58

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

21651 ZIP code map

Cities in ZIP code 21651

Below are the cities the US Postal Service accepts for ZIP code 21651. Using any city not on this list may result in mail delivery delays.

City	Status
Millington	Preferred

Nearby ZIP codes

21668 Sudlersville (4.9 mi) 21635 Galena (5.8 mi) 21650 Massey (6 mi) 21645 Kennedyville (7 mi) 21607 Barclay (8.2 mi) 21644 Ingleside (9 mi) 21623 Church Hill (9.4 mi) 21649 Marydel (9.5 mi) 19938 Clayton (9.8 mi) 21690 Chestertown (10.5 mi) 21620 Chestertown (11.2 mi) 21919 Earleville (12.1 mi)

Demographics updated 05/2026

Population
Total population	2,346
Population density	58 / sq mi
State FIPS	24
County FIPS	029

Geography
Land area	40.58 sq mi
Water area	0.97 sq mi
Latitude	39.2489
Longitude	-75.8781
Timezone	Eastern (ET)
Area code	410/667

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	34.1%	40.6%	28.2%
$50k – $100k	36.6%	29.0%	28.2%
$100k – $200k	20.6%	23.2%	30.1%
Over $200k	8.7%	7.2%	13.4%

Demographics & statistics

2,346

Population

People per sq mi

49.2

Median age

$76,042

Median household income

$44,600

Per capita income

$245,300

Median home value

$1,136

Median monthly rent

82.7%

Home ownership

7.1%

Poverty rate

3.6%

Unemployment

1,098

Housing units

20.5%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

153

25–34

143

112

35–44

105

183

45–54

171

55–59

159

60–64

149

157

65–74

146

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	387	16.5%
18 and over	1,959	83.5%
65 and over	483	20.6%
Median age	49.2 years

Race & ethnicity

White 76.3%

Black or African American 10.9%

Hispanic or Latino 5.3%

Other race 4.2%

Two or more races 2.8%

Asian 0.3%

American Indian / Alaska Native 0.2%

Group	Count	%
White	1,891	76.3%
Black or African American	270	10.9%
Hispanic or Latino	131	5.3%
Other race	104	4.2%
Two or more races	70	2.8%
Asian	7	0.3%
American Indian / Alaska Native	4	0.2%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	34.1%	40.6%	28.2%
$50k – $100k	36.6%	29.0%	28.2%
$100k – $200k	20.6%	23.2%	30.1%
Over $200k	8.7%	7.2%	13.4%

Under $10k 3.2%

$10k–$15k 1.0%

$15k–$25k 8.6%

$25k–$35k 5.0%

$35k–$50k 9.6%

$50k–$75k 22.1%

$75k–$100k 11.6%

$100k–$150k 24.2%

$150k–$200k 5.6%

$200k+ 9.0%

Range	% of households
Under $10k	3.2%
$10k–$15k	1.0%
$15k–$25k	8.6%
$25k–$35k	5.0%
$35k–$50k	9.6%
$50k–$75k	22.1%
$75k–$100k	11.6%
$100k–$150k	24.2%
$150k–$200k	5.6%
$200k+	9.0%
Median income	$76,042

Housing

Home values

Under $50k 3.8%

$50k–$100k 4.8%

$100k–$150k 4.5%

$150k–$200k 15.1%

$200k–$300k 32.4%

$300k–$500k 21.6%

$500k–$1M 10.1%

$1M+ 7.7%

Housing overview

Metric	Value
Median home value	$245,300
Median rent / month	$1,136
Owner occupied	82.7%
Renter occupied	17.3%
Vacant	17.0%
Single-family detached	92.9%
Large apartment buildings	0.0%
Mobile homes	4.6%
Median rooms	6.4
Avg household size (owned)	2.15

Year built

Era	%
2020 or later	0.0%
2010–2019	7.6%
2000–2009	14.4%
1990–1999	9.0%
1980–1989	18.7%
1970–1979	18.5%
1960–1969	10.1%
1950–1959	10.2%
1940–1949	2.7%
1939 or earlier	8.8%

Bedrooms

Size	% of units
No bedroom (studio)	0.9%
1 bedroom	2.3%
2 bedrooms	19.9%
3 bedrooms	58.2%
4 bedrooms	18.7%
5+ bedrooms	0.0%

Vehicles per household

Vehicles	% of households
No vehicle	2.6%
1 vehicle	23.7%
2 vehicles	40.8%
3 or more	32.9%

Heating fuel

Fuel type	%
Utility gas	5.3%
Electricity	53.9%
Propane / LP gas	13.1%
Fuel oil	24.6%
Wood	3.2%

Households & families

Household type	Count	%
Married-couple family	485	45.6%
Cohabiting couple	82	7.7%
Male householder, no spouse	291	27.3%
Female householder, no spouse	206	19.4%
Households with children under 18	268	25.2%
Households with seniors (65+)	358	33.6%
Average household size	2.20

Marital status

Status	Male	Female
Never married	29.7%	32.8%
Married	53.0%	48.5%
Separated	3.6%	0.7%
Widowed	5.3%	10.3%
Divorced	8.4%	7.7%

Education

Less than 9th grade 2.7%

Some HS, no diploma 8.2%

HS graduate 43.5%

Some college, no degree 20.7%

Associate's degree 4.4%

Bachelor's degree 12.4%

Graduate / professional 8.1%

Metric	%
HS diploma or higher	89.1%
Bachelor's or higher	20.5%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	17	4.5%
Kindergarten	21	5.5%
Elementary school	129	33.9%
High school	118	31.1%
College / grad school	95	25.0%

Employment

Industry of employment

Education & healthcare 22.6%

Retail trade 14.4%

Manufacturing 13.0%

Transportation & utilities 12.2%

Other services 10.6%

Professional & management 6.9%

Public administration 5.5%

Construction 4.6%

Agriculture & mining 4.3%

Arts, food & hospitality 2.3%

Finance & real estate 2.1%

Information 0.8%

Wholesale trade 0.6%

Occupation

Category	%
Management, business & arts	36.1%
Service	18.6%
Sales & office	14.3%
Natural resources & construction	9.0%
Production & transportation	22.1%

Employment type

Type	%
Private sector	73.5%
Government	15.1%
Self-employed	11.3%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	84.9%
Carpool	5.6%
Public transit	2.1%
Walk	1.1%
Work from home	6.1%
Other means	0.2%
Avg commute (minutes)	42.6

Poverty

All people 7.1%

Under 18 years 8.8%

18 and over 6.8%

Married-couple families 1.9%

Female-led households 15.6%

Income support

Source	% of households
Social Security	38.3%
Retirement income	25.4%
Supplemental Security	3.9%
Cash public assistance	2.8%
Food stamps / SNAP	5.5%

Health indicators

Condition	%
Obesity	31.9%
High blood pressure	34.9%
High cholesterol	31.8%
Diabetes	10.0%
Heart disease	5.9%
Stroke	2.9%
Asthma	10.0%
Arthritis	25.4%
Kidney disease	2.7%
Pulmonary disease	6.4%
Cancer	6.6%

Behavior / access	%
Smoking	17.2%
Binge drinking	16.0%
No physical activity	21.9%
Less than 7 hrs sleep	33.9%
Depression	19.1%
Fair or poor health	12.5%
Poor mental health	14.4%
Poor physical health	9.1%
No health insurance	11.3%
Visited doctor (checkup)	73.9%
Visited dentist	65.5%
Cholesterol screening	91.1%
Teeth loss	12.1%

Veterans & disability

Veterans	Count	%
Civilian veterans	129	6.6%

Disability	%
Any disability	14.1%
Under 18	0.8%
18–64 years	11.9%
65 and over	31.7%

Health insurance coverage

Type	%
Private insurance	69.0%
Public insurance	38.6%
No insurance	9.7%
Uninsured under 19	11.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	2,226	94.9%
Spanish	47	2.1%
Other Indo-European	47	2.1%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	2,280	97.2%
Born in same state	2,280	97.2%
Born in different state	1,605	68.4%
Foreign born	0	0.0%
Naturalized citizen	66	2.8%
Not a US citizen	38	57.6%

Ancestry

Ancestry	Count	%
French	349	14.9%
Italian	218	9.3%
Arab	131	5.6%
Irish	42	1.8%

Ancestry	Count	%
English	13	0.6%
Norwegian	10	0.4%
Dutch	8	0.3%

Technology access

Metric	% of households
Computer access	45.4%
Internet access	91.7%

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

Frequently asked questions about ZIP code 21651

What city is ZIP code 21651 in?

ZIP code 21651 is primarily assigned to Millington, Maryland.

What county is ZIP code 21651 in?

ZIP code 21651 falls within Queen Annes County, Maryland.

Is ZIP code 21651 mostly owner-occupied?

83% of occupied units in ZIP code 21651 are owner-occupied, well above the national average.

Does ZIP code 21651 have a large retiree population?

38% of households in ZIP code 21651 receive Social Security income, suggesting a significant retiree or disability population.

What is the population of ZIP code 21651?

ZIP code 21651 has an estimated population of 2,346 residents, with a density of 58 people per square mile.

What is the median household income in ZIP code 21651?

The median household income in ZIP code 21651 is $76,042, above the national median of ~$75,000.

What timezone is ZIP code 21651 in?

ZIP code 21651 observes the EST timezone.