21220 ZIP Code — Middle River, MD
Baltimore County, Maryland
ZIP code 21220 is located in Middle River, Maryland, within Baltimore County. It covers approximately 21.18 square miles and serves a population of 42,652 residents. This is a po box ZIP code in the Eastern (ET) timezone, served by area code 443/410/667.
About ZIP code 21220
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 $260,400. Owner-occupancy sits near the national average at 67%.
Median household income is $77,571. SNAP benefit usage at 18% of households reflects economic stress in the area.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 31 minutes is near the national average.
Educational attainment is near the national average, with 26% of residents holding a bachelor's degree or higher.
42,652
population
21.18
sq mi land
PO Box
ZIP type
Eastern (ET)
timezone
21220 ZIP code map
Cities in ZIP code 21220
Below are the cities the US Postal Service accepts for ZIP code 21220. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Middle River | Acceptable |
| Middle River | Preferred |
Nearby ZIP codes
21162 White Marsh (3.5 mi)
21221 Essex (3.6 mi)
21237 Rosedale (5 mi)
21128 Perry Hall (5.1 mi)
21236 Nottingham (5.7 mi)
21010 Gunpowder (6 mi)
21156 Upper Falls (6.7 mi)
21206 Baltimore (7.2 mi)
21087 Kingsville (7.5 mi)
21222 Dundalk (7.6 mi)
21234 Parkville (7.7 mi)
21219 Sparrows Point (7.8 mi)
Demographics
updated 05/2026
| Population | |
|---|---|
| Total population | 42,652 |
| Population density | 2,014 / sq mi |
| State FIPS | 24 |
| County FIPS | 005 |
| Geography | |
|---|---|
| Land area | 21.18 sq mi |
| Water area | 6.67 sq mi |
| Latitude | 39.3402 |
| Longitude | -76.4020 |
| Timezone | Eastern (ET) |
| Area code | 443/410/667 |
Total population by age
Gender
Race & ethnicity
Economics
updated 05/2026
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 35.5% | 31.4% | 28.2% |
| $50k – $100k | 31.0% | 30.7% | 28.2% |
| $100k – $200k | 26.1% | 28.5% | 30.1% |
| Over $200k | 7.4% | 9.5% | 13.4% |
Demographics & statistics
42,652
Population
2,014
People per sq mi
37.4
Median age
$77,571
Median household income
$39,690
Per capita income
$260,400
Median home value
$1,561
Median monthly rent
66.8%
Home ownership
16.4%
Poverty rate
4.2%
Unemployment
12,483
Housing units
26.4%
Bachelor's or higher
Age distribution
Male
Female
1,513
Under 5
1,612
1,354
5–9
1,441
1,039
10–14
1,107
1,234
15–19
1,314
1,300
20–24
1,384
3,093
25–34
3,293
2,783
35–44
2,964
2,749
45–54
2,927
1,551
55–59
1,652
1,352
60–64
1,440
1,616
65–74
1,720
868
75–84
924
204
85+
218
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 9,486 | 22.2% |
| 18 and over | 33,166 | 77.8% |
| 65 and over | 5,550 | 13.0% |
| Median age | 37.4 years | |
Race & ethnicity
White
56.6%
Black or African American
24.6%
Asian
5.4%
Two or more races
4.9%
Hispanic or Latino
4.2%
Other race
3.7%
American Indian / Alaska Native
0.5%
Native Hawaiian / Pacific Islander
0.1%
| Group | Count | % |
|---|---|---|
| White | 25,211 | 56.6% |
| Black or African American | 10,964 | 24.6% |
| Asian | 2,406 | 5.4% |
| Two or more races | 2,188 | 4.9% |
| Hispanic or Latino | 1,862 | 4.2% |
| Other race | 1,640 | 3.7% |
| American Indian / Alaska Native | 207 | 0.5% |
| Native Hawaiian / Pacific Islander | 36 | 0.1% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 35.5% | 31.4% | 28.2% |
| $50k – $100k | 31.0% | 30.7% | 28.2% |
| $100k – $200k | 26.1% | 28.5% | 30.1% |
| Over $200k | 7.4% | 9.5% | 13.4% |
Under $10k
8.0%
$10k–$15k
1.3%
$15k–$25k
5.5%
$25k–$35k
6.1%
$35k–$50k
10.8%
$50k–$75k
16.2%
$75k–$100k
13.5%
$100k–$150k
18.7%
$150k–$200k
9.4%
$200k+
10.5%
| Range | % of households |
|---|---|
| Under $10k | 8.0% |
| $10k–$15k | 1.3% |
| $15k–$25k | 5.5% |
| $25k–$35k | 6.1% |
| $35k–$50k | 10.8% |
| $50k–$75k | 16.2% |
| $75k–$100k | 13.5% |
| $100k–$150k | 18.7% |
| $150k–$200k | 9.4% |
| $200k+ | 10.5% |
| Median income | $77,571 |
Housing
Home values
Under $50k
7.0%
$50k–$100k
7.5%
$100k–$150k
5.6%
$150k–$200k
11.8%
$200k–$300k
28.6%
$300k–$500k
27.1%
$500k–$1M
11.0%
$1M+
1.3%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $260,400 |
| Median rent / month | $1,561 |
| Owner occupied | 66.8% |
| Renter occupied | 33.2% |
| Vacant | 9.2% |
| Single-family detached | 44.5% |
| Large apartment buildings | 6.5% |
| Mobile homes | 7.5% |
| Median rooms | 5.9 |
| Avg household size (owned) | 2.59 |
Year built
| Era | % |
|---|---|
| 2020 or later | 1.1% |
| 2010–2019 | 9.6% |
| 2000–2009 | 14.8% |
| 1990–1999 | 11.8% |
| 1980–1989 | 13.3% |
| 1970–1979 | 12.3% |
| 1960–1969 | 9.5% |
| 1950–1959 | 12.5% |
| 1940–1949 | 11.8% |
| 1939 or earlier | 3.3% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 1.5% |
| 1 bedroom | 9.4% |
| 2 bedrooms | 26.3% |
| 3 bedrooms | 47.7% |
| 4 bedrooms | 13.0% |
| 5+ bedrooms | 2.1% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 8.1% |
| 1 vehicle | 37.4% |
| 2 vehicles | 34.1% |
| 3 or more | 20.4% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 37.7% |
| Electricity | 44.5% |
| Propane / LP gas | 2.7% |
| Fuel oil | 13.0% |
| Wood | 0.6% |
| Solar | 0.2% |
| No fuel used | 1.0% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 7,135 | 44.0% |
| Cohabiting couple | 1,220 | 7.5% |
| Male householder, no spouse | 2,958 | 18.2% |
| Female householder, no spouse | 4,919 | 30.3% |
| Households with children under 18 | 4,945 | 30.5% |
| Households with seniors (65+) | 3,897 | 24.0% |
| Average household size | 2.62 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 37.1% | 37.6% |
| Married | 48.8% | 40.8% |
| Separated | 1.9% | 1.8% |
| Widowed | 4.2% | 8.3% |
| Divorced | 7.9% | 11.5% |
Education
Less than 9th grade
5.2%
Some HS, no diploma
6.1%
HS graduate
35.6%
Some college, no degree
18.6%
Associate's degree
8.2%
Bachelor's degree
16.7%
Graduate / professional
9.7%
| Metric | % |
|---|---|
| HS diploma or higher | 88.7% |
| Bachelor's or higher | 26.4% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 348 | 3.7% |
| Kindergarten | 842 | 8.9% |
| Elementary school | 3,687 | 39.1% |
| High school | 2,203 | 23.4% |
| College / grad school | 2,348 | 24.9% |
Employment
Industry of employment
Education & healthcare
25.1%
Retail trade
11.9%
Professional & management
9.2%
Construction
8.7%
Transportation & utilities
8.4%
Public administration
8.1%
Manufacturing
7.2%
Finance & real estate
7.2%
Arts, food & hospitality
6.1%
Other services
3.8%
Wholesale trade
2.8%
Information
1.4%
Agriculture & mining
0.1%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 38.6% |
| Service | 14.5% |
| Sales & office | 21.6% |
| Natural resources & construction | 10.5% |
| Production & transportation | 14.8% |
Employment type
| Type | % |
|---|---|
| Private sector | 80.1% |
| Government | 15.7% |
| Self-employed | 4.2% |
| Unpaid family workers | 0.0% |
Commute
| Method | % |
|---|---|
| Drive alone | 76.0% |
| Carpool | 10.1% |
| Public transit | 2.7% |
| Walk | 1.3% |
| Work from home | 7.8% |
| Other means | 2.1% |
| Avg commute (minutes) | 31.2 |
Poverty
All people
16.4%
Under 18 years
28.3%
18 and over
13.1%
Married-couple families
9.7%
Female-led households
22.4%
Income support
| Source | % of households |
|---|---|
| Social Security | 27.3% |
| Retirement income | 23.7% |
| Supplemental Security | 5.0% |
| Cash public assistance | 4.9% |
| Food stamps / SNAP | 17.6% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 32.3% |
| High blood pressure | 33.5% |
| High cholesterol | 32.4% |
| Diabetes | 8.9% |
| Heart disease | 5.7% |
| Stroke | 2.9% |
| Asthma | 10.3% |
| Arthritis | 24.7% |
| Kidney disease | 2.7% |
| Pulmonary disease | 6.3% |
| Cancer | 6.4% |
| Behavior / access | % |
|---|---|
| Smoking | 17.5% |
| Binge drinking | 15.9% |
| No physical activity | 24.1% |
| Less than 7 hrs sleep | 33.8% |
| Depression | 20.5% |
| Fair or poor health | 13.9% |
| Poor mental health | 16.0% |
| Poor physical health | 9.1% |
| No health insurance | 11.9% |
| Visited doctor (checkup) | 75.3% |
| Visited dentist | 61.6% |
| Cholesterol screening | 91.0% |
| Teeth loss | 12.5% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 2,020 | 6.1% |
| Disability | % |
|---|---|
| Any disability | 13.4% |
| Under 18 | 3.3% |
| 18–64 years | 12.7% |
| 65 and over | 34.6% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 67.9% |
| Public insurance | 38.8% |
| No insurance | 6.3% |
| Uninsured under 19 | 7.7% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 39,527 | 92.7% |
| Spanish | 1,923 | 4.9% |
| Other Indo-European | 681 | 1.7% |
| Asian & Pacific Islander | 344 | 0.9% |
| Other languages | 179 | 0.5% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 37,738 | 88.5% |
| Born in same state | 36,939 | 86.6% |
| Born in different state | 29,041 | 68.1% |
| Foreign born | 799 | 1.9% |
| Naturalized citizen | 4,914 | 11.5% |
| Not a US citizen | 2,068 | 42.1% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Italian | 5,077 | 11.9% |
| French | 2,700 | 6.3% |
| Arab | 1,402 | 3.3% |
| English | 324 | 0.8% |
| Irish | 91 | 0.2% |
| Ancestry | Count | % |
|---|---|---|
| Norwegian | 58 | 0.1% |
| Polish | 43 | 0.1% |
| Dutch | 20 | 0% |
| German | 16 | 0% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 38.1% |
| Internet access | 95.2% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 21220
What city is ZIP code 21220 in?
ZIP code 21220 is primarily assigned to Middle River, Maryland.
What county is ZIP code 21220 in?
ZIP code 21220 falls within Baltimore County, Maryland.
What is the poverty rate in ZIP code 21220?
16% of residents in ZIP code 21220 live below the poverty line, above the national average.
What is the population of ZIP code 21220?
ZIP code 21220 has an estimated population of 42,652 residents, with a density of 2,014 people per square mile.
What is the median household income in ZIP code 21220?
The median household income in ZIP code 21220 is $77,571, above the national median of ~$75,000.
What is the typical home value in ZIP code 21220?
The median home value in ZIP code 21220 is $260,400.
What timezone is ZIP code 21220 in?
ZIP code 21220 observes the EST timezone.