21829 ZIP Code — Girdletree, MD

Worcester County, Maryland

ZIP code 21829 is located in Girdletree, Maryland, within Worcester County. It covers approximately 16.76 square miles and serves a population of 394 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 410/443/667.

About ZIP code 21829

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 $202,800. Owner-occupancy is high at 94%, well above the national average.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 19 minutes is near the national average.

Educational attainment is near the national average, with 34% of residents holding a bachelor's degree or higher.

Overall, ZIP code 21829 reflects a community defined by high homeownership and a significant Social Security-dependent population.

394

population

16.76

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

21829 ZIP code map

Cities in ZIP code 21829

Below are the cities the US Postal Service accepts for ZIP code 21829. Using any city not on this list may result in mail delivery delays.

City	Status
Girdletree	Preferred

Nearby ZIP codes

23356 Greenbackville (6.6 mi) 21863 Snow Hill (7.3 mi) 21851 Pocomoke City (8.7 mi) 23395 Horntown (9.5 mi) 23336 Chincoteague Island (10.9 mi) 23415 New Church (12.3 mi) 21841 Newark (12.6 mi) 23416 Oak Hall (15 mi) 23303 Atlantic (15 mi) 23396 Oak Hall (15.1 mi) 23488 Withams (15.6 mi) 23337 Wallops Island (16 mi)

Demographics updated 05/2026

Population
Total population	394
Population density	24 / sq mi
State FIPS	24
County FIPS	047

Geography
Land area	16.76 sq mi
Water area	1.33 sq mi
Latitude	38.0933
Longitude	-75.3848
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	18.1%	40.0%	28.2%
$50k – $100k	25.7%	31.3%	28.2%
$100k – $200k	50.3%	21.0%	30.1%
Over $200k	5.8%	7.8%	13.4%

Demographics & statistics

394

Population

People per sq mi

64.8

Median age

Median household income

$52,008

Per capita income

$202,800

Median home value

Median monthly rent

93.5%

Home ownership

9.9%

Poverty rate

14.3%

Unemployment

250

Housing units

34.3%

Bachelor's or higher

Age distribution

Male Female

10–14

15–19

20–24

25–34

35–44

55–59

60–64

65–74

75–84

← Male

Female →

Age summary

Group	Count	%
Under 18	28	7.1%
18 and over	366	92.9%
65 and over	184	46.7%
Median age	64.8 years

Race & ethnicity

White 96.7%

Asian 3.3%

Group	Count	%
White	381	96.7%
Asian	13	3.3%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	18.1%	40.0%	28.2%
$50k – $100k	25.7%	31.3%	28.2%
$100k – $200k	50.3%	21.0%	30.1%
Over $200k	5.8%	7.8%	13.4%

$15k–$25k 6.5%

$25k–$35k 1.6%

$35k–$50k 15.1%

$50k–$75k 11.8%

$75k–$100k 15.6%

$100k–$150k 4.8%

$150k–$200k 38.2%

$200k+ 6.5%

Range	% of households
$15k–$25k	6.5%
$25k–$35k	1.6%
$35k–$50k	15.1%
$50k–$75k	11.8%
$75k–$100k	15.6%
$100k–$150k	4.8%
$150k–$200k	38.2%
$200k+	6.5%
Median income	$0

Housing

Home values

$100k–$150k 23.6%

$150k–$200k 25.9%

$200k–$300k 15.5%

$300k–$500k 35.1%

Housing overview

Metric	Value
Median home value	$202,800
Median rent / month	$0
Owner occupied	93.5%
Renter occupied	6.5%
Vacant	29.0%
Single-family detached	100.0%
Large apartment buildings	0.0%
Mobile homes	0.0%
Median rooms	6.3
Avg household size (owned)	2.20

Year built

Era	%
2020 or later	0.0%
2010–2019	0.0%
2000–2009	9.2%
1990–1999	0.0%
1980–1989	0.0%
1970–1979	3.4%
1960–1969	0.0%
1950–1959	12.2%
1940–1949	0.0%
1939 or earlier	75.2%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	0.0%
2 bedrooms	26.0%
3 bedrooms	51.5%
4 bedrooms	19.1%
5+ bedrooms	3.4%

Vehicles per household

Vehicles	% of households
No vehicle	6.5%
1 vehicle	28.5%
2 vehicles	3.2%
3 or more	61.8%

Heating fuel

Fuel type	%
Electricity	17.7%
Propane / LP gas	75.8%
Wood	6.5%

Households & families

Household type	Count	%
Married-couple family	121	65.1%
Cohabiting couple	0	0.0%
Male householder, no spouse	24	12.9%
Female householder, no spouse	41	22.0%
Households with children under 18	24	12.9%
Households with seniors (65+)	146	78.5%
Average household size	2.12

Marital status

Status	Male	Female
Never married	18.8%	13.9%
Married	68.3%	64.9%
Separated	0.0%	0.0%
Widowed	0.0%	21.1%
Divorced	12.9%	0.0%

Education

Less than 9th grade 0.0%

Some HS, no diploma 3.5%

HS graduate 34.9%

Some college, no degree 9.2%

Associate's degree 18.2%

Bachelor's degree 29.1%

Graduate / professional 5.2%

Metric	%
HS diploma or higher	96.5%
Bachelor's or higher	34.3%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	0	0.0%
Kindergarten	0	0.0%
Elementary school	14	34.1%
High school	14	34.1%
College / grad school	13	31.7%

Employment

Industry of employment

Education & healthcare 35.1%

Construction 25.3%

Arts, food & hospitality 16.7%

Public administration 12.1%

Transportation & utilities 4.0%

Retail trade 3.4%

Professional & management 3.4%

Occupation

Category	%
Management, business & arts	61.5%
Service	5.2%
Sales & office	19.0%
Natural resources & construction	14.4%
Production & transportation	0.0%

Employment type

Type	%
Private sector	62.1%
Government	30.5%
Self-employed	7.5%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	76.4%
Carpool	0.0%
Public transit	9.9%
Walk	0.0%
Work from home	6.2%
Other means	7.5%
Avg commute (minutes)	18.9

Poverty

All people 9.9%

Under 18 years 50.0%

18 and over 6.8%

Married-couple families 9.9%

Female-led households 0.0%

Income support

Source	% of households
Social Security	72.0%
Retirement income	65.6%
Supplemental Security	0.0%
Cash public assistance	0.0%
Food stamps / SNAP	0.0%

Health indicators

Condition	%
Obesity	33.8%
High blood pressure	40.2%
High cholesterol	37.6%
Diabetes	11.9%
Heart disease	7.2%
Stroke	3.5%
Asthma	9.5%
Arthritis	28.5%
Kidney disease	3.2%
Pulmonary disease	7.4%
Cancer	7.8%

Behavior / access	%
Smoking	17.4%
Binge drinking	14.8%
No physical activity	25.7%
Less than 7 hrs sleep	30.4%
Depression	19.5%
Fair or poor health	13.7%
Poor mental health	14.0%
Poor physical health	9.8%
No health insurance	11.0%
Visited doctor (checkup)	77.6%
Visited dentist	62.6%
Cholesterol screening	92.3%
Teeth loss	12.2%

Veterans & disability

Veterans	Count	%
Civilian veterans	19	5.2%

Disability	%
Any disability	7.9%
Under 18	0.0%
18–64 years	7.1%
65 and over	9.8%

Health insurance coverage

Type	%
Private insurance	81.7%
Public insurance	70.1%
No insurance	0.0%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	394	100.0%
Spanish	14	3.6%
Other Indo-European	14	3.6%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	394	100.0%
Born in same state	394	100.0%
Born in different state	193	49.0%
Foreign born	0	0.0%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
Arab	57	14.5%
French	45	11.4%

Ancestry	Count	%
German	10	2.5%
Italian	3	0.8%

Technology access

Metric	% of households
Computer access	47.2%
Internet access	79.6%

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

Frequently asked questions about ZIP code 21829

What city is ZIP code 21829 in?

ZIP code 21829 is primarily assigned to Girdletree, Maryland.

What county is ZIP code 21829 in?

ZIP code 21829 falls within Worcester County, Maryland.

Does ZIP code 21829 have an older population?

47% of residents in ZIP code 21829 are 65 or older, above the national average of ~17%.

Does ZIP code 21829 have a large retiree population?

72% of households in ZIP code 21829 receive Social Security income, suggesting a significant retiree or disability population.

Is ZIP code 21829 mostly owner-occupied?

94% of occupied units in ZIP code 21829 are owner-occupied, well above the national average.

What is the population of ZIP code 21829?

ZIP code 21829 has an estimated population of 394 residents, with a density of 24 people per square mile.

What timezone is ZIP code 21829 in?

ZIP code 21829 observes the EST timezone.