20685 ZIP Code — Saint Leonard, MD
Calvert County, Maryland
ZIP code 20685 is located in Saint Leonard, Maryland, within Calvert County. It covers approximately 22.90 square miles and serves a population of 6,750 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 410.
About ZIP code 20685
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 $384,200. Owner-occupancy is high at 94%, well above the national average.
The gap between median ($119,792) and mean household income suggests income inequality — a small number of higher earners pull the average up.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. An above-average commute of 40 minutes suggests many residents work outside the immediate area.
Educational attainment is near the national average, with 24% of residents holding a bachelor's degree or higher.
6,750
population
22.90
sq mi land
Standard
ZIP type
Eastern (ET)
timezone
20685 ZIP code map
Cities in ZIP code 20685
Below are the cities the US Postal Service accepts for ZIP code 20685. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Saint Leonard | Acceptable |
| Saint Leonard | Preferred |
Nearby ZIP codes
20615 Broomes Island (1.5 mi)
20676 Port Republic (4.3 mi)
20636 Hollywood (6.2 mi)
20657 Lusby (6.2 mi)
20678 Prince Frederick (6.2 mi)
20688 Solomons (8 mi)
20688 Solomons (8 mi)
20659 Mechanicsville (9 mi)
20656 Loveville (9.4 mi)
20619 California (9.9 mi)
20670 Patuxent River (11.9 mi)
20639 Huntingtown (12.7 mi)
Demographics
updated 05/2026
| Population | |
|---|---|
| Total population | 6,750 |
| Population density | 295 / sq mi |
| State FIPS | 24 |
| County FIPS | 009 |
| Geography | |
|---|---|
| Land area | 22.90 sq mi |
| Water area | 8.34 sq mi |
| Latitude | 38.4332 |
| Longitude | -76.5327 |
| 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 | 15.3% | 17.9% | 28.2% |
| $50k – $100k | 25.4% | 25.0% | 28.2% |
| $100k – $200k | 34.9% | 39.4% | 30.1% |
| Over $200k | 24.5% | 17.7% | 13.4% |
Demographics & statistics
6,750
Population
295
People per sq mi
47.0
Median age
$119,792
Median household income
$55,399
Per capita income
$384,200
Median home value
$1,636
Median monthly rent
93.8%
Home ownership
0.6%
Poverty rate
1.1%
Unemployment
2,558
Housing units
23.6%
Bachelor's or higher
Age distribution
Male
Female
64
Under 5
67
259
5–9
275
220
10–14
233
154
15–19
162
200
20–24
212
271
25–34
286
414
35–44
438
440
45–54
466
392
55–59
414
343
60–64
363
294
65–74
311
208
75–84
221
21
85+
22
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 1,329 | 19.7% |
| 18 and over | 5,421 | 80.3% |
| 65 and over | 1,077 | 16.0% |
| Median age | 47.0 years | |
Race & ethnicity
White
77.3%
Black or African American
14.2%
Two or more races
3.1%
Hispanic or Latino
3%
Other race
2.4%
| Group | Count | % |
|---|---|---|
| White | 5,377 | 77.3% |
| Black or African American | 991 | 14.2% |
| Two or more races | 217 | 3.1% |
| Hispanic or Latino | 206 | 3% |
| Other race | 165 | 2.4% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 15.3% | 17.9% | 28.2% |
| $50k – $100k | 25.4% | 25.0% | 28.2% |
| $100k – $200k | 34.9% | 39.4% | 30.1% |
| Over $200k | 24.5% | 17.7% | 13.4% |
$15k–$25k
3.6%
$25k–$35k
3.2%
$35k–$50k
4.6%
$50k–$75k
11.4%
$75k–$100k
10.3%
$100k–$150k
26.8%
$150k–$200k
14.4%
$200k+
25.7%
| Range | % of households |
|---|---|
| $15k–$25k | 3.6% |
| $25k–$35k | 3.2% |
| $35k–$50k | 4.6% |
| $50k–$75k | 11.4% |
| $75k–$100k | 10.3% |
| $100k–$150k | 26.8% |
| $150k–$200k | 14.4% |
| $200k+ | 25.7% |
| Median income | $119,792 |
Housing
Home values
Under $50k
1.9%
$50k–$100k
2.3%
$150k–$200k
5.0%
$200k–$300k
15.8%
$300k–$500k
55.7%
$500k–$1M
17.2%
$1M+
2.1%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $384,200 |
| Median rent / month | $1,636 |
| Owner occupied | 93.8% |
| Renter occupied | 6.2% |
| Vacant | 8.8% |
| Single-family detached | 96.3% |
| Large apartment buildings | 0.0% |
| Mobile homes | 0.5% |
| Median rooms | 7.0 |
| Avg household size (owned) | 2.77 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.0% |
| 2010–2019 | 0.6% |
| 2000–2009 | 13.9% |
| 1990–1999 | 29.6% |
| 1980–1989 | 20.0% |
| 1970–1979 | 14.9% |
| 1960–1969 | 3.6% |
| 1950–1959 | 13.6% |
| 1940–1949 | 2.2% |
| 1939 or earlier | 1.7% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 0.8% |
| 1 bedroom | 2.1% |
| 2 bedrooms | 6.2% |
| 3 bedrooms | 45.0% |
| 4 bedrooms | 36.7% |
| 5+ bedrooms | 9.3% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 1.4% |
| 1 vehicle | 13.5% |
| 2 vehicles | 44.1% |
| 3 or more | 41.0% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 0.8% |
| Electricity | 81.1% |
| Propane / LP gas | 9.0% |
| Fuel oil | 4.0% |
| Wood | 3.9% |
| Solar | 0.4% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 1,583 | 64.0% |
| Cohabiting couple | 176 | 7.1% |
| Male householder, no spouse | 315 | 12.7% |
| Female householder, no spouse | 398 | 16.1% |
| Households with children under 18 | 783 | 31.7% |
| Households with seniors (65+) | 740 | 29.9% |
| Average household size | 2.73 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 29.4% | 21.4% |
| Married | 58.9% | 57.4% |
| Separated | 0.0% | 2.2% |
| Widowed | 2.1% | 6.5% |
| Divorced | 9.7% | 12.5% |
Education
Less than 9th grade
2.0%
Some HS, no diploma
6.8%
HS graduate
31.8%
Some college, no degree
27.8%
Associate's degree
8.0%
Bachelor's degree
12.1%
Graduate / professional
11.5%
| Metric | % |
|---|---|
| HS diploma or higher | 91.2% |
| Bachelor's or higher | 23.6% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 38 | 2.7% |
| Kindergarten | 97 | 6.8% |
| Elementary school | 690 | 48.5% |
| High school | 360 | 25.3% |
| College / grad school | 237 | 16.7% |
Employment
Industry of employment
Education & healthcare
18.9%
Professional & management
18.0%
Construction
14.1%
Retail trade
10.9%
Public administration
9.0%
Arts, food & hospitality
8.2%
Manufacturing
6.9%
Transportation & utilities
3.7%
Information
3.1%
Finance & real estate
2.4%
Wholesale trade
2.0%
Other services
2.0%
Agriculture & mining
0.7%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 51.9% |
| Service | 17.3% |
| Sales & office | 15.3% |
| Natural resources & construction | 7.4% |
| Production & transportation | 8.1% |
Employment type
| Type | % |
|---|---|
| Private sector | 75.8% |
| Government | 19.2% |
| Self-employed | 5.0% |
| Unpaid family workers | 0.0% |
Commute
| Method | % |
|---|---|
| Drive alone | 79.9% |
| Carpool | 6.7% |
| Public transit | 0.7% |
| Walk | 0.7% |
| Work from home | 11.9% |
| Other means | 0.0% |
| Avg commute (minutes) | 40.2 |
Poverty
All people
0.6%
Under 18 years
0.0%
18 and over
0.7%
Married-couple families
0.0%
Female-led households
0.0%
Income support
| Source | % of households |
|---|---|
| Social Security | 28.9% |
| Retirement income | 35.3% |
| Supplemental Security | 4.5% |
| Cash public assistance | 1.9% |
| Food stamps / SNAP | 5.0% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 35.8% |
| High blood pressure | 31.5% |
| High cholesterol | 33.6% |
| Diabetes | 9.0% |
| Heart disease | 4.9% |
| Stroke | 2.4% |
| Asthma | 9.9% |
| Arthritis | 25.6% |
| Kidney disease | 2.3% |
| Pulmonary disease | 5.6% |
| Cancer | 6.2% |
| Behavior / access | % |
|---|---|
| Smoking | 16.0% |
| Binge drinking | 16.0% |
| No physical activity | 19.5% |
| Less than 7 hrs sleep | 36.0% |
| Depression | 19.2% |
| Fair or poor health | 10.7% |
| Poor mental health | 14.1% |
| Poor physical health | 8.0% |
| No health insurance | 9.5% |
| Visited doctor (checkup) | 74.6% |
| Visited dentist | 69.6% |
| Cholesterol screening | 92.2% |
| Teeth loss | 9.5% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 539 | 10.0% |
| Disability | % |
|---|---|
| Any disability | 9.6% |
| Under 18 | 1.2% |
| 18–64 years | 8.6% |
| 65 and over | 24.3% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 83.3% |
| Public insurance | 29.1% |
| No insurance | 4.0% |
| Uninsured under 19 | 0.5% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 6,619 | 98.1% |
| Spanish | 59 | 0.9% |
| Other Indo-European | 58 | 0.9% |
| Asian & Pacific Islander | 0 | 0.0% |
| Other languages | 0 | 0.0% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 6,600 | 97.8% |
| Born in same state | 6,552 | 97.1% |
| Born in different state | 4,268 | 63.2% |
| Foreign born | 48 | 0.7% |
| Naturalized citizen | 150 | 2.2% |
| Not a US citizen | 121 | 80.7% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| French | 1,660 | 24.6% |
| Italian | 817 | 12.1% |
| Arab | 446 | 6.6% |
| English | 90 | 1.3% |
| Ancestry | Count | % |
|---|---|---|
| Dutch | 47 | 0.7% |
| German | 11 | 0.2% |
| Irish | 8 | 0.1% |
| Polish | 1 | 0% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 36.6% |
| Internet access | 91.4% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 20685
What city is ZIP code 20685 in?
ZIP code 20685 is primarily assigned to Saint Leonard, Maryland.
What county is ZIP code 20685 in?
ZIP code 20685 falls within Calvert County, Maryland.
Is ZIP code 20685 mostly owner-occupied?
94% of occupied units in ZIP code 20685 are owner-occupied, well above the national average.
What is the typical home value in ZIP code 20685?
The median home value in ZIP code 20685 is $384,200.
Does ZIP code 20685 have a large veteran population?
10% of civilians in ZIP code 20685 are veterans, above the national average of ~7%.
What is the median household income in ZIP code 20685?
The median household income in ZIP code 20685 is $119,792, above the national median of ~$75,000.
What timezone is ZIP code 20685 in?
ZIP code 20685 observes the EST timezone.