20629 ZIP Code — Dowell, MD

Calvert County, Maryland

ZIP code 20629 is located in Dowell, Maryland, within Calvert County. It covers approximately 0.84 square miles and serves a population of 1,072 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 410/443/667.

About ZIP code 20629

The housing stock consists of a mix of housing types. Most homes were built in the 2000s, giving the area an established character. Median home value is $471,300. Owner-occupancy is high at 95%, well above the national average.

The gap between median ($86,861) and mean household income suggests income inequality — a small number of higher earners pull the average up. 38% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with professional and management as the leading industry. The average commute of 20 minutes is near the national average. Remote work is prevalent — 34% of workers work from home.

Educational attainment is high — 47% of residents hold a bachelor's degree or higher, well above the national average of 33%.

Overall, ZIP code 20629 reflects a community defined by high homeownership, a high rate of remote workers, and a significant Social Security-dependent population.

1,072

population

0.84

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

20629 ZIP code map

Cities in ZIP code 20629

Below are the cities the US Postal Service accepts for ZIP code 20629. Using any city not on this list may result in mail delivery delays.

City	Status
Dowell	Acceptable

Demographics updated 05/2026

Population
Total population	1,072
Population density	1,276 / sq mi
State FIPS	24
County FIPS	009

Geography
Land area	0.84 sq mi
Water area	0.17 sq mi
Latitude	38.3371
Longitude	-76.4537
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	44.7%	17.9%	28.2%
$50k – $100k	37.5%	25.0%	28.2%
$100k – $200k	12.5%	39.4%	30.1%
Over $200k	5.3%	17.7%	13.4%

Demographics & statistics

1,072

Population

1,276

People per sq mi

55.2

Median age

$86,861

Median household income

$58,005

Per capita income

$471,300

Median home value

Median monthly rent

94.5%

Home ownership

1.1%

Poverty rate

0.0%

Unemployment

525

Housing units

47.3%

Bachelor's or higher

Age distribution

Male Female

5–9

10–14

15–19

20–24

25–34

35–44

45–54

55–59

60–64

137

65–74

100

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	105	9.8%
18 and over	967	90.2%
65 and over	360	33.6%
Median age	55.2 years

Race & ethnicity

White 68.1%

Asian 16.9%

Black or African American 7.8%

Two or more races 4.5%

Hispanic or Latino 2.6%

Group	Count	%
White	750	68.1%
Asian	186	16.9%
Black or African American	86	7.8%
Two or more races	50	4.5%
Hispanic or Latino	29	2.6%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	44.7%	17.9%	28.2%
$50k – $100k	37.5%	25.0%	28.2%
$100k – $200k	12.5%	39.4%	30.1%
Over $200k	5.3%	17.7%	13.4%

$25k–$35k 14.0%

$50k–$75k 21.3%

$75k–$100k 17.4%

$100k–$150k 8.9%

$150k–$200k 11.4%

$200k+ 27.0%

Range	% of households
$25k–$35k	14.0%
$50k–$75k	21.3%
$75k–$100k	17.4%
$100k–$150k	8.9%
$150k–$200k	11.4%
$200k+	27.0%
Median income	$86,861

Housing

Home values

Under $50k 3.4%

$200k–$300k 11.6%

$300k–$500k 44.3%

$500k–$1M 40.7%

Housing overview

Metric	Value
Median home value	$471,300
Median rent / month	$0
Owner occupied	94.5%
Renter occupied	5.5%
Vacant	20.4%
Single-family detached	41.2%
Large apartment buildings	0.0%
Mobile homes	0.0%
Median rooms	6.0
Avg household size (owned)	2.31

Year built

Era	%
2020 or later	10.2%
2010–2019	18.4%
2000–2009	34.2%
1990–1999	21.7%
1980–1989	15.5%
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	20.9%
3 bedrooms	42.1%
4 bedrooms	37.0%
5+ bedrooms	0.0%

Vehicles per household

Vehicles	% of households
No vehicle	0.0%
1 vehicle	39.6%
2 vehicles	49.9%
3 or more	10.5%

Heating fuel

Fuel type	%
Utility gas	38.9%
Electricity	61.1%

Households & families

Household type	Count	%
Married-couple family	294	67.3%
Cohabiting couple	31	7.1%
Male householder, no spouse	0	0.0%
Female householder, no spouse	112	25.6%
Households with children under 18	87	19.9%
Households with seniors (65+)	167	38.2%
Average household size	2.24

Marital status

Status	Male	Female
Never married	29.9%	13.5%
Married	57.9%	64.2%
Separated	0.0%	1.5%
Widowed	6.8%	2.2%
Divorced	5.5%	18.5%

Education

Less than 9th grade 4.4%

Some HS, no diploma 0.0%

HS graduate 21.8%

Some college, no degree 12.4%

Associate's degree 14.1%

Bachelor's degree 18.7%

Graduate / professional 28.6%

Metric	%
HS diploma or higher	95.6%
Bachelor's or higher	47.3%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	0	0.0%
Kindergarten	0	0.0%
Elementary school	87	41.6%
High school	18	8.6%
College / grad school	104	49.8%

Employment

Industry of employment

Professional & management 33.8%

Education & healthcare 22.3%

Public administration 18.5%

Arts, food & hospitality 18.0%

Transportation & utilities 7.4%

Occupation

Category	%
Management, business & arts	86.3%
Service	3.6%
Sales & office	10.1%
Natural resources & construction	0.0%
Production & transportation	0.0%

Employment type

Type	%
Private sector	57.6%
Government	34.5%
Self-employed	4.6%
Unpaid family workers	3.4%

Commute

Method	%
Drive alone	59.4%
Carpool	6.5%
Public transit	0.0%
Walk	0.0%
Work from home	34.1%
Other means	0.0%
Avg commute (minutes)	19.7

Poverty

All people 1.1%

Under 18 years 0.0%

18 and over 1.2%

Married-couple families 0.0%

Female-led households 0.0%

Income support

Source	% of households
Social Security	38.2%
Retirement income	41.6%
Supplemental Security	0.0%
Cash public assistance	0.0%
Food stamps / SNAP	2.1%

Health indicators

Condition	%
Obesity	34.7%
High blood pressure	35.7%
High cholesterol	38.0%
Diabetes	10.4%
Heart disease	6.3%
Stroke	2.9%
Asthma	9.4%
Arthritis	30.2%
Kidney disease	2.8%
Pulmonary disease	6.4%
Cancer	8.0%

Behavior / access	%
Smoking	14.3%
Binge drinking	14.1%
No physical activity	19.7%
Less than 7 hrs sleep	34.1%
Depression	18.2%
Fair or poor health	11.1%
Poor mental health	12.7%
Poor physical health	8.4%
No health insurance	8.4%
Visited doctor (checkup)	77.0%
Visited dentist	71.6%
Cholesterol screening	94.0%
Teeth loss	8.5%

Veterans & disability

Veterans	Count	%
Civilian veterans	75	8.0%

Disability	%
Any disability	10.7%
Under 18	0.0%
18–64 years	6.5%
65 and over	22.5%

Health insurance coverage

Type	%
Private insurance	88.9%
Public insurance	34.2%
No insurance	3.0%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,072	100.0%
Spanish	29	2.7%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	29	2.7%

Place of birth & citizenship

Origin	Count	%
Native born (US)	922	86.0%
Born in same state	913	85.2%
Born in different state	261	24.3%
Foreign born	9	0.8%
Naturalized citizen	150	14.0%
Not a US citizen	113	75.3%

Ancestry

Ancestry	Count	%
Italian	224	20.9%
French	221	20.6%

Ancestry	Count	%
Arab	17	1.6%
English	12	1.1%

Technology access

Metric	% of households
Computer access	40.8%
Internet access	100.0%

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

Frequently asked questions about ZIP code 20629

What city is ZIP code 20629 in?

ZIP code 20629 is primarily assigned to Dowell, Maryland.

What county is ZIP code 20629 in?

ZIP code 20629 falls within Calvert County, Maryland.

Does ZIP code 20629 have an older population?

34% of residents in ZIP code 20629 are 65 or older, above the national average of ~17%.

Is ZIP code 20629 mostly owner-occupied?

95% of occupied units in ZIP code 20629 are owner-occupied, well above the national average.

How educated is the population of ZIP code 20629?

47% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

Does ZIP code 20629 have a large retiree population?

38% of households in ZIP code 20629 receive Social Security income, suggesting a significant retiree or disability population.

What timezone is ZIP code 20629 in?

ZIP code 20629 observes the EST timezone.