21635 ZIP Code — Galena, MD

Kent County, Maryland

ZIP code 21635 is located in Galena, Maryland, within Kent County. It covers approximately 30.77 square miles and serves a population of 1,836 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 410/667.

About ZIP code 21635

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1990s, giving the area an established character. Median home value is $330,400. Owner-occupancy is high at 78%, well above the national average.

Median household income is $120,169. The poverty rate of 5% is below the national average. 41% 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 30 minutes is near the national average.

Educational attainment is near the national average, with 33% of residents holding a bachelor's degree or higher.

Overall, ZIP code 21635 reflects a community defined by high homeownership and a significant Social Security-dependent population.

1,836

population

30.77

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

21635 ZIP code map

Cities in ZIP code 21635

Below are the cities the US Postal Service accepts for ZIP code 21635. Using any city not on this list may result in mail delivery delays.

City	Status
Galena	Acceptable
Galena	Preferred

Nearby ZIP codes

21650 Massey (2.2 mi) 21651 Millington (5.8 mi) 21645 Kennedyville (7 mi) 21912 Warwick (7.2 mi) 21919 Earleville (7.8 mi) 19938 Clayton (9.1 mi) 21668 Sudlersville (10.4 mi) 19734 Townsend (11.2 mi) 21915 Chesapeake City (12.1 mi) 21610 Betterton (12.2 mi) 21607 Barclay (13.5 mi) 19709 Middletown (13.7 mi)

Demographics updated 05/2026

Population
Total population	1,836
Population density	60 / sq mi
State FIPS	24
County FIPS	029

Geography
Land area	30.77 sq mi
Water area	1.56 sq mi
Latitude	39.3277
Longitude	-75.8406
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	32.9%	40.6%	28.2%
$50k – $100k	15.7%	29.0%	28.2%
$100k – $200k	42.0%	23.2%	30.1%
Over $200k	9.4%	7.2%	13.4%

Demographics & statistics

1,836

Population

People per sq mi

49.8

Median age

$120,169

Median household income

$53,193

Per capita income

$330,400

Median home value

Median monthly rent

78.3%

Home ownership

4.5%

Poverty rate

1.2%

Unemployment

821

Housing units

32.9%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

115

25–34

109

35–44

134

45–54

126

55–59

107

60–64

101

160

65–74

150

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	296	16.1%
18 and over	1,540	83.9%
65 and over	475	25.9%
Median age	49.8 years

Race & ethnicity

White 78.1%

Hispanic or Latino 8.2%

Other race 5.5%

Two or more races 4.4%

Black or African American 3.2%

Asian 0.5%

Group	Count	%
White	1,562	78.1%
Hispanic or Latino	165	8.2%
Other race	111	5.5%
Two or more races	88	4.4%
Black or African American	64	3.2%
Asian	11	0.5%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	32.9%	40.6%	28.2%
$50k – $100k	15.7%	29.0%	28.2%
$100k – $200k	42.0%	23.2%	30.1%
Over $200k	9.4%	7.2%	13.4%

Under $10k 2.4%

$10k–$15k 2.2%

$15k–$25k 11.0%

$25k–$35k 4.5%

$35k–$50k 4.6%

$50k–$75k 8.2%

$75k–$100k 11.5%

$100k–$150k 23.7%

$150k–$200k 23.9%

$200k+ 7.9%

Range	% of households
Under $10k	2.4%
$10k–$15k	2.2%
$15k–$25k	11.0%
$25k–$35k	4.5%
$35k–$50k	4.6%
$50k–$75k	8.2%
$75k–$100k	11.5%
$100k–$150k	23.7%
$150k–$200k	23.9%
$200k+	7.9%
Median income	$120,169

Housing

Home values

Under $50k 0.4%

$50k–$100k 6.3%

$100k–$150k 2.2%

$150k–$200k 7.8%

$200k–$300k 26.6%

$300k–$500k 33.8%

$500k–$1M 20.1%

$1M+ 2.6%

Housing overview

Metric	Value
Median home value	$330,400
Median rent / month	$0
Owner occupied	78.3%
Renter occupied	21.7%
Vacant	14.0%
Single-family detached	86.8%
Large apartment buildings	7.1%
Mobile homes	4.2%
Median rooms	7.1
Avg household size (owned)	2.20

Year built

Era	%
2020 or later	0.0%
2010–2019	6.1%
2000–2009	15.0%
1990–1999	19.2%
1980–1989	15.0%
1970–1979	11.3%
1960–1969	6.6%
1950–1959	12.6%
1940–1949	0.2%
1939 or earlier	14.0%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	7.8%
2 bedrooms	11.2%
3 bedrooms	53.5%
4 bedrooms	16.9%
5+ bedrooms	10.6%

Vehicles per household

Vehicles	% of households
No vehicle	0.9%
1 vehicle	29.6%
2 vehicles	31.2%
3 or more	38.3%

Heating fuel

Fuel type	%
Utility gas	0.6%
Electricity	47.0%
Propane / LP gas	26.2%
Fuel oil	19.6%
Wood	5.2%
Solar	0.1%
No fuel used	0.7%

Households & families

Household type	Count	%
Married-couple family	462	53.2%
Cohabiting couple	24	2.8%
Male householder, no spouse	149	17.1%
Female householder, no spouse	234	26.9%
Households with children under 18	164	18.9%
Households with seniors (65+)	334	38.4%
Average household size	2.11

Marital status

Status	Male	Female
Never married	21.9%	31.5%
Married	65.2%	48.7%
Separated	4.7%	0.0%
Widowed	2.5%	10.1%
Divorced	5.7%	9.7%

Education

Less than 9th grade 5.0%

Some HS, no diploma 11.3%

HS graduate 27.9%

Some college, no degree 13.2%

Associate's degree 9.7%

Bachelor's degree 21.1%

Graduate / professional 11.9%

Metric	%
HS diploma or higher	83.7%
Bachelor's or higher	32.9%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	14	4.1%
Kindergarten	7	2.0%
Elementary school	117	33.9%
High school	64	18.6%
College / grad school	143	41.4%

Employment

Industry of employment

Education & healthcare 17.7%

Arts, food & hospitality 11.4%

Manufacturing 11.2%

Construction 10.6%

Retail trade 10.1%

Professional & management 9.5%

Agriculture & mining 9.1%

Other services 7.4%

Public administration 7.2%

Finance & real estate 2.7%

Transportation & utilities 2.0%

Wholesale trade 1.1%

Occupation

Category	%
Management, business & arts	44.1%
Service	19.4%
Sales & office	12.6%
Natural resources & construction	18.3%
Production & transportation	5.5%

Employment type

Type	%
Private sector	72.1%
Government	14.5%
Self-employed	13.3%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	81.7%
Carpool	3.6%
Public transit	0.0%
Walk	4.5%
Work from home	8.6%
Other means	1.5%
Avg commute (minutes)	30.2

Poverty

All people 4.5%

Under 18 years 1.0%

18 and over 5.2%

Married-couple families 0.0%

Female-led households 6.8%

Income support

Source	% of households
Social Security	40.7%
Retirement income	32.8%
Supplemental Security	2.4%
Cash public assistance	0.0%
Food stamps / SNAP	2.3%

Health indicators

Condition	%
Obesity	31.7%
High blood pressure	38.1%
High cholesterol	36.2%
Diabetes	11.4%
Heart disease	7.4%
Stroke	3.4%
Asthma	10.1%
Arthritis	28.5%
Kidney disease	3.2%
Pulmonary disease	7.7%
Cancer	8.0%

Behavior / access	%
Smoking	16.9%
Binge drinking	14.8%
No physical activity	22.4%
Less than 7 hrs sleep	33.3%
Depression	19.4%
Fair or poor health	13.7%
Poor mental health	13.6%
Poor physical health	10.1%
No health insurance	10.8%
Visited doctor (checkup)	76.4%
Visited dentist	65.0%
Cholesterol screening	92.8%
Teeth loss	11.8%

Veterans & disability

Veterans	Count	%
Civilian veterans	141	9.2%

Disability	%
Any disability	18.0%
Under 18	1.0%
18–64 years	16.4%
65 and over	32.0%

Health insurance coverage

Type	%
Private insurance	83.2%
Public insurance	31.9%
No insurance	3.2%
Uninsured under 19	3.2%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,782	97.1%
Spanish	44	2.5%
Other Indo-European	42	2.4%
Asian & Pacific Islander	0	0.0%
Other languages	2	0.1%

Place of birth & citizenship

Origin	Count	%
Native born (US)	1,773	96.6%
Born in same state	1,751	95.4%
Born in different state	530	28.9%
Foreign born	22	1.2%
Naturalized citizen	63	3.4%
Not a US citizen	18	28.6%

Ancestry

Ancestry	Count	%
French	362	19.7%
Italian	354	19.3%
Arab	75	4.1%

Ancestry	Count	%
Polish	46	2.5%
English	21	1.1%
Irish	7	0.4%

Technology access

Metric	% of households
Computer access	47.3%
Internet access	91.9%

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

Frequently asked questions about ZIP code 21635

What city is ZIP code 21635 in?

ZIP code 21635 is primarily assigned to Galena, Maryland.

What county is ZIP code 21635 in?

ZIP code 21635 falls within Kent County, Maryland.

Does ZIP code 21635 have an older population?

26% of residents in ZIP code 21635 are 65 or older, above the national average of ~17%.

Does ZIP code 21635 have a large retiree population?

41% of households in ZIP code 21635 receive Social Security income, suggesting a significant retiree or disability population.

What is the median household income in ZIP code 21635?

The median household income in ZIP code 21635 is $120,169, above the national median of ~$75,000.

Does ZIP code 21635 have a large veteran population?

9% of civilians in ZIP code 21635 are veterans, above the national average of ~7%.

What timezone is ZIP code 21635 in?

ZIP code 21635 observes the EST timezone.