21644 ZIP Code — Ingleside, MD

Queen Annes County, Maryland

ZIP code 21644 is located in Ingleside, Maryland, within Queen Annes County. It covers approximately 3.62 square miles and serves a population of 40 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 410.

population

3.62

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

21644 ZIP code map

Cities in ZIP code 21644

Below are the cities the US Postal Service accepts for ZIP code 21644. Using any city not on this list may result in mail delivery delays.

City	Status
Ingleside	Preferred

Nearby ZIP codes

21607 Barclay (2.5 mi) 21623 Church Hill (4 mi) 21668 Sudlersville (4.3 mi) 21640 Henderson (5.3 mi) 21649 Marydel (6.2 mi) 21636 Goldsboro (8.3 mi) 21617 Centreville (8.4 mi) 21651 Millington (9 mi) 21660 Ridgely (10.7 mi) 21620 Chestertown (11.1 mi) 19953 Hartly (11.2 mi) 21690 Chestertown (11.3 mi)

Demographics updated 05/2026

Population
Total population	40
Population density	11 / sq mi
State FIPS	24
County FIPS	035

Geography
Land area	3.62 sq mi
Water area	0.00 sq mi
Latitude	39.1195
Longitude	-75.8909
Timezone	Eastern (ET)
Area code	410

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	61.5%	22.7%	28.2%
$50k – $100k	0.0%	27.5%	28.2%
$100k – $200k	38.5%	35.4%	30.1%
Over $200k	0.0%	14.4%	13.4%

Demographics & statistics

Population

People per sq mi

0.0

Median age

Median household income

Per capita income

Median home value

Median monthly rent

100.0%

Home ownership

0.0%

Poverty rate

0.0%

Unemployment

Housing units

0.0%

Bachelor's or higher

Age distribution

Male Female

60–64

75–84

← Male

Female →

Age summary

Group	Count	%
Under 18	0	0.0%
18 and over	40	100.0%
65 and over	18	45.0%
Median age	0.0 years

Race & ethnicity

White 100%

Group	Count	%
White	40	100%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	61.5%	22.7%	28.2%
$50k – $100k	0.0%	27.5%	28.2%
$100k – $200k	38.5%	35.4%	30.1%
Over $200k	0.0%	14.4%	13.4%

$75k–$100k 100.0%

Range	% of households
$75k–$100k	100.0%
Median income	$0

Housing

Home values

$300k–$500k 100.0%

Housing overview

Metric	Value
Median home value	$0
Median rent / month	$0
Owner occupied	100.0%
Renter occupied	0.0%
Vacant	0.0%
Single-family detached	100.0%
Large apartment buildings	0.0%
Mobile homes	0.0%
Median rooms	0.0
Avg household size (owned)	2.22

Year built

Era	%
2020 or later	0.0%
2010–2019	0.0%
2000–2009	0.0%
1990–1999	0.0%
1980–1989	100.0%
1970–1979	0.0%
1960–1969	0.0%
1950–1959	0.0%
1940–1949	0.0%
1939 or earlier	0.0%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	0.0%
2 bedrooms	100.0%
3 bedrooms	0.0%
4 bedrooms	0.0%
5+ bedrooms	0.0%

Vehicles per household

Vehicles	% of households
No vehicle	0.0%
1 vehicle	0.0%
2 vehicles	100.0%
3 or more	0.0%

Heating fuel

Fuel type	%
Propane / LP gas	100.0%

Households & families

Household type	Count	%
Married-couple family	18	100.0%
Cohabiting couple	0	0.0%
Male householder, no spouse	0	0.0%
Female householder, no spouse	0	0.0%
Households with children under 18	0	0.0%
Households with seniors (65+)	18	100.0%
Average household size	2.22

Marital status

Status	Male	Female
Never married	0.0%	0.0%
Married	100.0%	100.0%
Separated	0.0%	0.0%
Widowed	0.0%	0.0%
Divorced	0.0%	0.0%

Education

Less than 9th grade 0.0%

Some HS, no diploma 0.0%

HS graduate 100.0%

Some college, no degree 0.0%

Associate's degree 0.0%

Bachelor's degree 0.0%

Graduate / professional 0.0%

Metric	%
HS diploma or higher	100.0%
Bachelor's or higher	0.0%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	0	0.0%
Kindergarten	0	0.0%
Elementary school	0	0.0%
High school	0	0.0%
College / grad school	0	0.0%

Employment

Industry of employment

Education & healthcare 100.0%

Occupation

Category	%
Management, business & arts	100.0%
Service	0.0%
Sales & office	0.0%
Natural resources & construction	0.0%
Production & transportation	0.0%

Employment type

Type	%
Private sector	0.0%
Government	100.0%
Self-employed	0.0%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	100.0%
Carpool	0.0%
Public transit	0.0%
Walk	0.0%
Work from home	0.0%
Other means	0.0%
Avg commute (minutes)	0.0

Poverty

All people 0.0%

Under 18 years 0.0%

18 and over 0.0%

Married-couple families 0.0%

Female-led households 0.0%

Income support

Source	% of households
Social Security	100.0%
Retirement income	100.0%
Supplemental Security	0.0%
Cash public assistance	0.0%
Food stamps / SNAP	0.0%

Health indicators

Condition	%
Obesity	34.1%
High blood pressure	35.0%
High cholesterol	31.6%
Diabetes	9.8%
Heart disease	6.3%
Stroke	3.0%
Asthma	9.8%
Arthritis	26.4%
Kidney disease	2.7%
Pulmonary disease	7.5%
Cancer	6.1%

Behavior / access	%
Smoking	21.9%
Binge drinking	17.4%
No physical activity	24.8%
Less than 7 hrs sleep	34.1%
Depression	19.8%
Fair or poor health	14.5%
Poor mental health	15.7%
Poor physical health	10.3%
No health insurance	14.7%
Visited doctor (checkup)	70.1%
Visited dentist	60.3%
Cholesterol screening	89.3%
Teeth loss	15.0%

Veterans & disability

Veterans	Count	%
Civilian veterans	0	0.0%

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

Health insurance coverage

Type	%
Private insurance	100.0%
Public insurance	45.0%
No insurance	0.0%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	40	100.0%
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)	40	100.0%
Born in same state	40	100.0%
Born in different state	40	100.0%
Foreign born	0	0.0%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Technology access

Metric	% of households
Computer access	45.0%
Internet access	100.0%

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

Frequently asked questions about ZIP code 21644

What city is ZIP code 21644 in?

ZIP code 21644 is primarily assigned to Ingleside, Maryland.

What county is ZIP code 21644 in?

ZIP code 21644 falls within Queen Annes County, Maryland.

Does ZIP code 21644 have a large retiree population?

100% of households in ZIP code 21644 receive Social Security income, suggesting a significant retiree or disability population.

Does ZIP code 21644 have an older population?

45% of residents in ZIP code 21644 are 65 or older, above the national average of ~17%.

What is the population of ZIP code 21644?

ZIP code 21644 has an estimated population of 40 residents, with a density of 11 people per square mile.

What timezone is ZIP code 21644 in?

ZIP code 21644 observes the EST timezone.