ZIP Code 20629 in Dowell, MD

Data Last Updated: February 1, 2026
City:Dowell, Maryland
County:Calvert County
Timezone:Eastern (GMT -05:00)
Local Time:9:55:11 PM
Population:1,188 [See All]
Area Codes:410 / 443 / 667
Classification:PO Box
Coordinates:38.3371, -76.4537
Land Area:0.839 sq mi
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20629 Dowell, MD - Chesapeake Bay Retirement Community

ZIP Code 20629, Dowell

Retirement
LocationCalvert County, MD
Area0.6 sq mi
Population1,188
Households491
PO Boxes0 No PO Boxes
Median Age59.7 years (Senior)
Seasonal Housing13%
ZIP CreatedBefore Oct 2004
Key Facts
  • Despite PO Box classification, this ZIP has zero PO boxes and delivers all mail via street routes
  • Median age of 59.7 years makes this one of Maryland's oldest communities
  • Street names like Oyster Bay Place and Shipyard Way signal waterfront Chesapeake Bay location
  • With 25.3% working from home, remote work is popular among this retirement-age population
  • The PO Box classification is a legacy administrative code that never got updated after street delivery was established

Community Overview

Dowell sits on the western shore of the Chesapeake Bay in Calvert County, Maryland. This small waterfront community of 1,188 residents skews heavily toward retirees, with a median age of 59.7 years. Despite its PO Box classification, Dowell actually has no PO boxes at the post office. Instead, all 491 households receive mail through street delivery, a combination of city and rural carrier routes serving 27 distinct streets across 0.61 square miles.

Waterfront Character

The waterfront character appears in street names like Oyster Bay Place, Shipyard Way, Riverwatch Drive, and Reef Way. HG Truman Road accounts for 24 delivery points, the most in the ZIP. About a quarter of workers (25.3%) work from home, well above national averages for this age demographic. Median home values of $459,500 and household incomes of $90,400 suggest a comfortable retirement setting.

Demographics

Calvert County's shoreline location on the Chesapeay attracts retirees seeking water access without resort prices. The population is 84% white, with growing diversity (320 Hispanic residents, 95 Black residents, 32 Asian residents). Owner-occupancy is high at 78%. Group quarters house 131 people, split between 74 in institutionalized settings (likely a nursing facility) and 57 in noninstitutionalized settings.

Postal Services

The P classification doesn't match current reality. Street delivery operates through two city routes and one rural route. This is an administrative legacy from when USPS assigned these codes decades ago. The system never reclassified it, even after carrier routes were established. For mailing purposes, use standard street addresses.

Street Name Patterns

Waterfront Names Bay References

Street names like Oyster Bay, Shipyard, and Riverwatch indicate a Chesapeake Bay waterfront community.

Interactive charts load automatically as you scroll. Hover for data, click to explore trends, and use the menu to export.

Population & Demographics


ZIP Code 20629 has 1,188 residents and 491 households (average 2.15 persons per household). The median age is 59.7 years, significantly older than the state (38.8) and significantly older than the nation (38.8). The gender split is 44.7% male and 55.3% female, which is lower than the national male share (49.1%), making this a female-majority area. Largest groups are White (83.7%, much higher than the state average of 48.7% and well above the national average of 61.6%) and Black or African American (8.0%, much lower than the state average of 29.5%); Hispanic or Latino residents make up 2.4%, which is much lower than the national average (18.7%).

Explore More: Population Over Time By Age & Gender By Race By Gender Nativity & Citizenship

Source: U.S. Census 2020 Demographics & Housing Characteristics (DHC) and U.S. Census 2011-2024 American Community Survey (ACS) 5-Year Estimates.
2020 Population:1,188Source: Census DHC
2024 ACS Population Estimate:1,150Source: Census ACS
2026 ZC Population Estimate:0Source: ZIP-Codes.com
Population Density:1,416.0 people per sq mile
Average Income:$87,389Source: Census ACS
Households:491Source: Census DHC
Average House Value:$403,100Source: Census ACS
Persons Per Household:2.15Source: Census DHC
Average Family Size:2.74Source: Census ACS

Population Over Time (with 2010 & 2020 Census Benchmarks)


Group201020112102201320142015201620172018201920202021202220232024
Census ACS Population Estimate--3102272192631803123843743835258641,0721,0671,150
Decennial Census535------------------1,188--------
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP05. DEMOGRAPHIC AND HOUSING ESTIMATES

Population by Age & Gender (Total, Male, Female)


Median Age: 59.7

Male Median Age: 58.1

Female Median Age: 60.8

Group< 55-910-1415-1920-2425-2930-3435-3940-4445-4950-5455-5960-6465-6970-7475-7980-8485+
Male92023201318271122265539585654383210
Female52628232922201823373059536573413471
Total144651434240472945638598111121127796681
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

Population by Race


White:99485.91%
Black:958.21%
Hispanic:*292.51%
Asian:322.77%
American Indian:10.09%
Hawaiian:00%
Other:60.52%
Total:1,157100%
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)
* NOTE: Hispanic or Latino is an ethnicity, not a race. This means individuals who identify as Hispanic will also be included in one of the race categories (such as White or Black). As a result, the totals shown here may exceed 100% when Hispanic is displayed alongside racial groups.

Gender Breakdown


GenderCount%Median Age
Males:53144.70%58.1 years
Females:65755.30%60.8 years
Total:1,188100%59.7 years
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

Nativity & Citizenship


Native, born in the United States:1,01988.61%
Native, born in PR, Island Areas, or abroad:60.52%
Foreign born, naturalized U.S. citizen:544.70%
Foreign born, not a U.S. citizen:7110.87%
Total Population:1,150100%
Total Native Population:1,02589.13%
Total Foreign-born Population:12510.87%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS
Note: Nativity and Citizenship derived from American Community Survey (ACS) 5-year estimates. Total Population listed here will not match official ZIP Code population totals, which are based on the Decennial Census.

Income & Employment


In 2024, the Median household income is $87,389, which is much lower than the state median ($101,652), is down $23,057 (20.9%) since 2011 and above its 2019 pre-pandemic level by $31,472. Family households earn a median of $115,197 versus $62,232 for nonfamily households (a difference of $52,965). By gender, male median income is $0 and female is $61,367, which is far above the national female median ($53,445), with a current gap of $61,367 that has narrowed from 2011 to 2024. The labor-force participation rate is 55.7%, which is markedly below the state rate (67.2%). The unemployment rate is 0.0%, which is markedly below the national rate (5.2%). The largest occupation group is Management (71.0%).

Explore More: Income Over Time Household Income Employment Status By Occupation

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. Using data from Tables DP02, DP03, DP04 and DP05.

Median Income Over Time (Household, Family, Nonfamily, Male, Female)


Income Type20112012201320142015201620172018201920202021202220232024
Median Household Income$110,446$93,821$143,523$120,833$88,194$76,635$91,375$0$55,917$50,598$76,618$86,861$90,400$87,389
Median Family Income$210,865$250,001$240,917$153,654$0$0$121,118$0$0$51,522$100,347$108,239$112,875$115,197
Median NonFamily Income$90,441$92,571$62,083$64,091$63,068$0$0$0$66,333$46,034$0$0$60,982$62,232
Median Male Income$90,993$93,286$92,054$93,269$0$0$100,197$0$0$0$110,438$113,836$118,625$0
Median Female Income$63,854$57,500$0$0$0$0$0$0$0$0$61,146$67,200$71,012$61,367
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP03. SELECTED ECONOMIC CHARACTERISTICS

Average Household Income


Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Employment Status


Employed:55252.92%
Unemployed:00.00%
Not In Labor Force:49147.08%
Total:1,043100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Employment by Occupation (Civilian Employed Population, 16 and Over)


Management, business, science, and arts:39271.01%
Service:162.90%
Sales and Office:8815.94%
Natural resources, construction, and maintenance:00.00%
Production, transportation, and material moving:5610.14%
Total Civilian Employed Population:552100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS.

Housing & Affordability


In 2024, the median home value is $403,100, which is considerably higher than the national median ($303,400), is down $51,800 (11.39%) since 2011 and above its 2019 pre-pandemic level by $8,800. The median gross rent is $0, which is far less than the state median ($1,662), is down $1,228 (100.00%) since 2011 and above its 2019 pre-pandemic level by $0. Of occupied housing, owners make up 96.72% (82.83% with a mortgage, 17.17% free-and-clear) and renters 3.28% - making this ZIP Code more home ownership than the state and under national rental averages. The vacancy rate is 16.34%, which is much higher than the state rate (8.09%).

Explore More: Compare Home Value Home Value Over Time Rent & Over Time Housing Occupancy

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. Using data from Table DP03, SELECTED ECONOMIC CHARACTERISTICS.

Median Home Value (Comparison)


Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Median Home Value Over Time


Group20112102201320142015201620172018201920202021202220232024
Median Home Value$454,900$467,400$444,900$481,800$540,800$558,500$563,700$552,100$394,300$375,000$408,800$471,300$459,500$403,100
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP04. SELECTED HOUSING CHARACTERISTICS

Gross Rent Paid


Less than $500:00.00%
$500 to $999:00.00%
$1,000 to $1,499:00.00%
$1,500 to $1,999:00.00%
$2,000 to $2,499:18100.00%
$2,500 to $2,999:00.00%
$3,000 or more:00.00%
No Rent:00.00%
Total:18100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Median Gross Rent Over Time


Group20112102201320142015201620172018201920202021202220232024
Median Rent$1,228$1,479$0$0$0$0$0$0$0$0$0$0$0$0
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP04. SELECTED HOUSING CHARACTERISTICS

Housing Occupancy


Owner Occupied (with mortgage):43980.11%
Owner Occupied (free and clear, no mortgage):9116.61%
Renter Occupied:183.28%
Total Occupied Housing Units:548100%

Occupied Housing Units:54883.66%
Vacant Housing Units (not graphed):10716.34%
Total Housing Units:655100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Housing Type (Single-Family, Multi-Family, Other)


Single-Family Units:60091.60%
Multi-Family Units:558.40%
Other Units:00.00%
Total Housing Units:655100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Education, Health & Community


In 2024, 41.00% of adults (25+) have a bachelor's degree or higher, which is comparable to the national rate (35.00%). High school or higher is 92.20%, which is comparable to the national rate (89.40%). The uninsured rate is 0.00%, which is far lower than the national rate (8.60%). Private coverage is 85.30%, which is well above the national rate (67.30%). Public coverage is 49.20%, which is notably higher than the state rate (34.20%). The share of people in poverty is 0.00%, which is comparable to the national rate (8.70%). Poverty has been broadly stable, which may reflect structural barriers or offsetting gains and setbacks. Among residents ages 3+, the largest enrollment group is college (53.29%). College enrollment is 53.29%, which is comparable to the national rate (26.70%), meaning the community mirrors broader higher-education participation.

Explore More: Educational Attainment Health Insurance Poverty Over Time School Enrollment

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. Using data from Tables DP02 and DP03.

Educational Attainment of Adults (25 and Older)


Less than 9th grade:726.90%
9th to 12th grade, no diploma:90.86%
High school graduate (includes equivalency):32531.13%
Some college, no degree:14814.18%
Associate's degree:625.94%
Bachelor's degree:18617.82%
Graduate or professional degree:24223.18%
Total:1,044100%
High school or higher:96392.24%
Bachelor's degree or higher:42841.00%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS

Health Insurance Coverage by Type (Private, Public, Uninsured)


Private Insurance:90663.40%
Public Insurance:52336.60%
No Insurance:00.00%
Total:1,429100%
Has Health Insurance:1,429100.00%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Percentage of People in Poverty Over Time (2011-2024)


Group20112102201320142015201620172018201920202021202220232024
% of People in Poverty0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP03. SELECTED ECONOMIC CHARACTERISTICS

Note: Counts of Families & People in poverty are not published at the ZIP Code level due to small sample sizes. Percentages shown are survey estimates from the American Community Survey (ACS). They may differ from official poverty statistics. The U.S. Census Bureau defines poverty status by comparing a family's or individual's total income with federal poverty thresholds that vary by family size and composition.

School Enrollment by Education Level (Ages 3 and Older)


Nursery School, Preschool:00.00%
Kindergarten:00.00%
Elementary school (grades 1-8):7846.71%
High school (grades 9-12):00.00%
College or graduate school:8953.29%
Total:167100%
Early Childhood:00.00%
K-12 (Primary & Secondary School):7846.71%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS

Business & Employment Statistics


ZIP Code 20629 supports both business and residential activity. According to the Business Census (2024), there are 10 business establishments, employing about 116 people with an annual payroll of $4,946,000.

# Residential Mailboxes:0Source: USPS
# Business Mailboxes:0Source: USPS
Total Delivery Receptacles:0Source: USPS
Single Family Delivery Units:0Source: USPS
Multi Family Delivery Units:0Source: USPS
# of Businesses:10Source: CBP
1st Quarter Payroll:$1,012,000Source: CBP
Annual Payroll:$4,946,000Source: CBP
# of Employees:116Source: CBP

Geography, Land Area, & Statistical Classifications


ZIP Code 20629 is located in Calvert County, Maryland, within the Lexington Park, MD Metropolitan Statistical Area (CBSA 30500) and Maryland's 5th Congressional District. This Metro area has a population of 105,151 people, about 1.13% of whom live in ZIP Code 20629. It covers 0.839 sq mi of land and a water area of 0.165 sq mi.

CBSA Name:Lexington Park, MDSource: Census
CBSA Number:30500Source: Census
CBSA Type:MetroSource: Census
CBSA Division:--Source: Census
CBSA Population:105,151Source: Census
MSA:Washington-Baltimore, DC-MD-VA-WV CMSASource: Census
Land Area:0.839 sq miSource: Census
Water Area:0.165 sq miSource: Census
Congressional District:05Source: USPS
Congressional Land Area:1481.24 sq miSource: Census
PMSA:Washington, DC-MD-VA-WV PMSASource: Census
Intro Date:< 2004-10Source: ZIP-Codes.com
Place FIPS Code:--Source: Census
Place Name:--Source: Census

Adjacent & Nearby ZIP Codes


20630 | | 20628

Schools in ZIP Code 20629


We could not locate which school district 20629 belongs to, but we will update this once new district data is released. There are no public schools nor private schools with a mailing address in this ZIP Code. Listing Nearby schools instead. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.

Dowell Elementary 12680 H G Trueman Rd
Lusby, MD 20657
District: Calvert County Public SchoolsNearby
Patuxent High 12485 Southern Connector Boulevard
Lusby, MD 20657
District: Calvert County Public SchoolsNearby
Mill Creek Middle 12200 Southern Connector Blvd
Lusby, MD 20657
District: Calvert County Public SchoolsNearby
Patuxent Appeal Elementary Campus 11655 Hg Trueman Rd
Lusby, MD 20657
District: Calvert County Public SchoolsNearby
Town Creek Elementary 45805 Dent Dr
Lexington Park, MD 20653
District: St. Marys County Public SchoolsNearby
Our Lady Star Of The Sea School 90 Alexander Ln
Solomons, MD 20688
District: Private SchoolNearby
Lexington Park Baptist Church Preschool 46855 S Shangri La Dr Ste 100
Lexington Park, MD 20653
District: Private SchoolNearby
St John's Elementary School 43900 Saint Johns Rd
Hollywood, MD 20636
District: Private SchoolNearby

Colleges & Post Secondary Schools near ZIP Code 20629


Blades School Of Hair Design 22576-316 Macarthur Blvd
California, MD 20619
Type: Post Secondary
St. Mary's College Of Maryland 47645 College Drive
St. Mary's City, MD 20686
Type: Post Secondary
College Of Southern Maryland 8730 Mitchell Rd
La Plata, MD 20646-0910
Type: Post Secondary
Strayer University-Maryland 5110 Auth Way
Suitland, MD 20746
Type: Post Secondary
University Of Maryland Eastern Shore J.t. Williams Hall
Princess Anne, MD 21853-1299
Type: Post Secondary
Prince George's Community College 301 Largo Rd
Largo, MD 20774-2199
Type: Post Secondary

Sources & References


Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on February 1, 2026.

  1. U.S. Postal Service [Last Updated: 2/1/2026], https://www.usps.com
  2. ZIP-Codes.com Proprietary Data Enhancements [Updated: 2/1/2026], https://www.zip-codes.com
  3. U.S. Census [Updated: Varies], https://www.census.gov
    • U.S. Census Office of Management and Budget [Updated: As Released]
    • U.S. Census 2020 Demographic & Housing Characteristics (DHC) [Decennial] [Updated: 5/25/2023]
    • U.S. Census 2011-2024 American Community Survey 5-year estimates (ACS) [Annually] [Updated: Annually, As Released]
    • U.S. Census Business Patterns (CBD) [Annually] [Updated: Annually, As Released]
    • U.S. Census American National Standards Institute (ANSI) [Updated: As Released]
  4. U.S. Geological Survey [Updated: Varies], https://www.usgs.gov
  5. Centers for Medicare & Medicaid Services [Updated: Annually, As Released], https://www.cms.gov
  6. National Center for Education Statistics [Updated: 2/1/2026], https://nces.ed.gov