21875 ZIP Code — Delmar, MD
Wicomico County, Maryland
ZIP code 21875 is located in Delmar, Maryland, within Wicomico County. It covers approximately 24.37 square miles and serves a population of 7,446 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 443/410.
About ZIP code 21875
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 $214,600. Owner-occupancy sits near the national average at 68%.
Median household income is $69,362. 30% 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 23 minutes is near the national average.
Educational attainment is near the national average, with 26% of residents holding a bachelor's degree or higher.
7,446
population
24.37
sq mi land
Standard
ZIP type
Eastern (ET)
timezone
21875 ZIP code map
Cities in ZIP code 21875
Below are the cities the US Postal Service accepts for ZIP code 21875. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Delmar | Acceptable |
Demographics
updated 05/2026
| Population | |
|---|---|
| Total population | 7,446 |
| Population density | 306 / sq mi |
| State FIPS | 24 |
| County FIPS | 045 |
| Geography | |
|---|---|
| Land area | 24.37 sq mi |
| Water area | 0.12 sq mi |
| Latitude | 38.4510 |
| Longitude | -75.5791 |
| Timezone | Eastern (ET) |
| Area code | 443/410 |
Total population by age
Gender
Race & ethnicity
Economics
updated 05/2026
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 37.4% | 42.5% | 28.2% |
| $50k – $100k | 44.9% | 31.8% | 28.2% |
| $100k – $200k | 15.4% | 21.8% | 30.1% |
| Over $200k | 2.3% | 4.0% | 13.4% |
Demographics & statistics
7,446
Population
306
People per sq mi
38.9
Median age
$69,362
Median household income
$35,254
Per capita income
$214,600
Median home value
$1,274
Median monthly rent
67.9%
Home ownership
10.4%
Poverty rate
8.1%
Unemployment
2,325
Housing units
26.0%
Bachelor's or higher
Age distribution
Male
Female
206
Under 5
221
179
5–9
192
184
10–14
198
361
15–19
387
231
20–24
247
445
25–34
477
469
35–44
502
411
45–54
441
301
55–59
322
288
60–64
309
301
65–74
322
199
75–84
213
19
85+
21
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 1,722 | 23.1% |
| 18 and over | 5,724 | 76.9% |
| 65 and over | 1,075 | 14.4% |
| Median age | 38.9 years | |
Race & ethnicity
White
60.4%
Black or African American
12.6%
Hispanic or Latino
8.5%
Two or more races
7.5%
Other race
7.4%
Asian
3.6%
American Indian / Alaska Native
0.1%
| Group | Count | % |
|---|---|---|
| White | 4,909 | 60.4% |
| Black or African American | 1,026 | 12.6% |
| Hispanic or Latino | 688 | 8.5% |
| Two or more races | 608 | 7.5% |
| Other race | 600 | 7.4% |
| Asian | 294 | 3.6% |
| American Indian / Alaska Native | 9 | 0.1% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 37.4% | 42.5% | 28.2% |
| $50k – $100k | 44.9% | 31.8% | 28.2% |
| $100k – $200k | 15.4% | 21.8% | 30.1% |
| Over $200k | 2.3% | 4.0% | 13.4% |
Under $10k
1.6%
$10k–$15k
6.2%
$15k–$25k
5.2%
$25k–$35k
9.4%
$35k–$50k
8.6%
$50k–$75k
24.8%
$75k–$100k
20.4%
$100k–$150k
15.0%
$150k–$200k
5.3%
$200k+
3.4%
| Range | % of households |
|---|---|
| Under $10k | 1.6% |
| $10k–$15k | 6.2% |
| $15k–$25k | 5.2% |
| $25k–$35k | 9.4% |
| $35k–$50k | 8.6% |
| $50k–$75k | 24.8% |
| $75k–$100k | 20.4% |
| $100k–$150k | 15.0% |
| $150k–$200k | 5.3% |
| $200k+ | 3.4% |
| Median income | $69,362 |
Housing
Home values
Under $50k
4.7%
$50k–$100k
3.4%
$100k–$150k
9.6%
$150k–$200k
28.5%
$200k–$300k
30.3%
$300k–$500k
18.8%
$500k–$1M
4.7%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $214,600 |
| Median rent / month | $1,274 |
| Owner occupied | 67.9% |
| Renter occupied | 32.1% |
| Vacant | 6.4% |
| Single-family detached | 66.0% |
| Large apartment buildings | 8.6% |
| Mobile homes | 5.8% |
| Median rooms | 5.8 |
| Avg household size (owned) | 2.53 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.0% |
| 2010–2019 | 13.1% |
| 2000–2009 | 21.5% |
| 1990–1999 | 6.3% |
| 1980–1989 | 15.3% |
| 1970–1979 | 17.3% |
| 1960–1969 | 3.3% |
| 1950–1959 | 8.9% |
| 1940–1949 | 3.6% |
| 1939 or earlier | 10.8% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 0.3% |
| 1 bedroom | 8.5% |
| 2 bedrooms | 26.0% |
| 3 bedrooms | 53.0% |
| 4 bedrooms | 10.4% |
| 5+ bedrooms | 1.8% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 3.9% |
| 1 vehicle | 35.2% |
| 2 vehicles | 33.0% |
| 3 or more | 27.9% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 19.7% |
| Electricity | 66.9% |
| Propane / LP gas | 7.7% |
| Fuel oil | 4.4% |
| Wood | 0.8% |
| Solar | 0.5% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 1,445 | 46.5% |
| Cohabiting couple | 193 | 6.2% |
| Male householder, no spouse | 428 | 13.8% |
| Female householder, no spouse | 1,043 | 33.5% |
| Households with children under 18 | 913 | 29.4% |
| Households with seniors (65+) | 824 | 26.5% |
| Average household size | 2.39 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 38.4% | 30.9% |
| Married | 48.9% | 44.0% |
| Separated | 0.5% | 2.7% |
| Widowed | 1.4% | 5.1% |
| Divorced | 10.7% | 17.2% |
Education
Less than 9th grade
3.2%
Some HS, no diploma
10.5%
HS graduate
28.6%
Some college, no degree
22.9%
Associate's degree
8.7%
Bachelor's degree
18.2%
Graduate / professional
7.9%
| Metric | % |
|---|---|
| HS diploma or higher | 86.3% |
| Bachelor's or higher | 26.0% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 67 | 3.4% |
| Kindergarten | 86 | 4.3% |
| Elementary school | 607 | 30.6% |
| High school | 586 | 29.6% |
| College / grad school | 635 | 32.1% |
Employment
Industry of employment
Education & healthcare
32.0%
Retail trade
14.7%
Manufacturing
11.1%
Transportation & utilities
7.1%
Construction
6.8%
Arts, food & hospitality
5.9%
Public administration
5.7%
Professional & management
5.2%
Information
5.1%
Other services
4.4%
Finance & real estate
2.1%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 32.6% |
| Service | 18.7% |
| Sales & office | 24.1% |
| Natural resources & construction | 7.4% |
| Production & transportation | 17.2% |
Employment type
| Type | % |
|---|---|
| Private sector | 76.0% |
| Government | 17.4% |
| Self-employed | 6.6% |
| Unpaid family workers | 0.0% |
Commute
| Method | % |
|---|---|
| Drive alone | 90.9% |
| Carpool | 3.6% |
| Public transit | 0.0% |
| Walk | 1.2% |
| Work from home | 4.2% |
| Other means | 0.2% |
| Avg commute (minutes) | 22.8 |
Poverty
All people
10.4%
Under 18 years
19.4%
18 and over
7.6%
Married-couple families
2.6%
Female-led households
27.2%
Income support
| Source | % of households |
|---|---|
| Social Security | 30.4% |
| Retirement income | 22.6% |
| Supplemental Security | 5.5% |
| Cash public assistance | 1.1% |
| Food stamps / SNAP | 15.2% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 36.6% |
| High blood pressure | 36.0% |
| High cholesterol | 34.1% |
| Diabetes | 10.6% |
| Heart disease | 5.9% |
| Stroke | 3.1% |
| Asthma | 10.9% |
| Arthritis | 25.2% |
| Kidney disease | 2.8% |
| Pulmonary disease | 7.2% |
| Cancer | 5.8% |
| Behavior / access | % |
|---|---|
| Smoking | 19.2% |
| Binge drinking | 16.4% |
| No physical activity | 23.1% |
| Less than 7 hrs sleep | 34.5% |
| Depression | 21.0% |
| Fair or poor health | 14.6% |
| Poor mental health | 15.9% |
| Poor physical health | 9.9% |
| No health insurance | 12.2% |
| Visited doctor (checkup) | 76.7% |
| Visited dentist | 55.7% |
| Cholesterol screening | 90.1% |
| Teeth loss | 14.8% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 414 | 7.2% |
| Disability | % |
|---|---|
| Any disability | 15.8% |
| Under 18 | 12.0% |
| 18–64 years | 11.7% |
| 65 and over | 39.6% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 65.1% |
| Public insurance | 45.4% |
| No insurance | 4.3% |
| Uninsured under 19 | 1.4% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 7,019 | 94.3% |
| Spanish | 279 | 4.0% |
| Other Indo-European | 208 | 3.0% |
| Asian & Pacific Islander | 20 | 0.3% |
| Other languages | 51 | 0.7% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 6,832 | 91.8% |
| Born in same state | 6,802 | 91.4% |
| Born in different state | 4,641 | 62.3% |
| Foreign born | 30 | 0.4% |
| Naturalized citizen | 614 | 8.2% |
| Not a US citizen | 259 | 42.2% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| French | 968 | 13% |
| Italian | 647 | 8.7% |
| Arab | 597 | 8% |
| Ancestry | Count | % |
|---|---|---|
| Irish | 71 | 1% |
| English | 26 | 0.3% |
| Dutch | 6 | 0.1% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 41.8% |
| Internet access | 95.1% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 21875
What city is ZIP code 21875 in?
ZIP code 21875 is primarily assigned to Delmar, Maryland.
What county is ZIP code 21875 in?
ZIP code 21875 falls within Wicomico County, Maryland.
What is the population of ZIP code 21875?
ZIP code 21875 has an estimated population of 7,446 residents, with a density of 306 people per square mile.
What is the typical home value in ZIP code 21875?
The median home value in ZIP code 21875 is $214,600.
What is the median household income in ZIP code 21875?
The median household income in ZIP code 21875 is $69,362, below the national median of ~$75,000.
What timezone is ZIP code 21875 in?
ZIP code 21875 observes the EST timezone.