21075 ZIP Code — Elkridge, MD
Howard County, Maryland
ZIP code 21075 is located in Elkridge, Maryland, within Howard County. It covers approximately 13.93 square miles and serves a population of 36,176 residents. This is a po box ZIP code in the Eastern (ET) timezone, served by area code 410/443/667.
About ZIP code 21075
The housing stock consists of a mix of housing types. Much of the housing stock is relatively new, reflecting recent development activity. Median home value is $413,100. Owner-occupancy sits near the national average at 65%.
Median household income is $126,378. The poverty rate of 7% is below the national average.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 27 minutes is near the national average.
Educational attainment is high — 54% of residents hold a bachelor's degree or higher, well above the national average of 33%.
36,176
population
13.93
sq mi land
PO Box
ZIP type
Eastern (ET)
timezone
21075 ZIP code map
Cities in ZIP code 21075
Below are the cities the US Postal Service accepts for ZIP code 21075. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Elkridge | Acceptable |
Demographics
updated 06/2026
| Population | |
|---|---|
| Total population | 36,176 |
| Population density | 2,597 / sq mi |
| State FIPS | 24 |
| County FIPS | 027 |
| Geography | |
|---|---|
| Land area | 13.93 sq mi |
| Water area | 0.06 sq mi |
| Latitude | 39.2004 |
| Longitude | -76.7474 |
| Timezone | Eastern (ET) |
| Area code | 410/443/667 |
Total population by age
Gender
Race & ethnicity
Economics
updated 06/2026
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 20.9% | 17.1% | 28.2% |
| $50k – $100k | 24.3% | 22.9% | 28.2% |
| $100k – $200k | 36.6% | 34.8% | 30.1% |
| Over $200k | 18.2% | 25.2% | 13.4% |
Demographics & statistics
36,176
Population
2,597
People per sq mi
33.9
Median age
$126,378
Median household income
$50,468
Per capita income
$413,100
Median home value
$1,941
Median monthly rent
65.2%
Home ownership
7.4%
Poverty rate
4.5%
Unemployment
8,467
Housing units
53.8%
Bachelor's or higher
Age distribution
Male
Female
1,398
Under 5
1,450
1,190
5–9
1,235
1,602
10–14
1,661
1,061
15–19
1,101
1,115
20–24
1,156
2,912
25–34
3,020
2,907
35–44
3,016
2,243
45–54
2,327
1,044
55–59
1,082
802
60–64
832
964
65–74
1,001
386
75–84
400
133
85+
138
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 9,795 | 27.1% |
| 18 and over | 26,381 | 72.9% |
| 65 and over | 3,022 | 8.4% |
| Median age | 33.9 years | |
Race & ethnicity
White
39.7%
Black or African American
23.9%
Asian
18.9%
Two or more races
7.2%
Hispanic or Latino
6.9%
Other race
3.2%
American Indian / Alaska Native
0.1%
| Group | Count | % |
|---|---|---|
| White | 15,438 | 39.7% |
| Black or African American | 9,294 | 23.9% |
| Asian | 7,346 | 18.9% |
| Two or more races | 2,797 | 7.2% |
| Hispanic or Latino | 2,682 | 6.9% |
| Other race | 1,243 | 3.2% |
| American Indian / Alaska Native | 58 | 0.1% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 20.9% | 17.1% | 28.2% |
| $50k – $100k | 24.3% | 22.9% | 28.2% |
| $100k – $200k | 36.6% | 34.8% | 30.1% |
| Over $200k | 18.2% | 25.2% | 13.4% |
Under $10k
2.9%
$10k–$15k
1.0%
$15k–$25k
3.1%
$25k–$35k
4.2%
$35k–$50k
7.6%
$50k–$75k
10.7%
$75k–$100k
10.3%
$100k–$150k
19.9%
$150k–$200k
15.4%
$200k+
25.0%
| Range | % of households |
|---|---|
| Under $10k | 2.9% |
| $10k–$15k | 1.0% |
| $15k–$25k | 3.1% |
| $25k–$35k | 4.2% |
| $35k–$50k | 7.6% |
| $50k–$75k | 10.7% |
| $75k–$100k | 10.3% |
| $100k–$150k | 19.9% |
| $150k–$200k | 15.4% |
| $200k+ | 25.0% |
| Median income | $126,378 |
Housing
Home values
Under $50k
5.1%
$50k–$100k
1.9%
$100k–$150k
0.7%
$150k–$200k
1.0%
$200k–$300k
11.9%
$300k–$500k
51.4%
$500k–$1M
26.3%
$1M+
1.8%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $413,100 |
| Median rent / month | $1,941 |
| Owner occupied | 65.2% |
| Renter occupied | 34.8% |
| Vacant | 2.0% |
| Single-family detached | 32.6% |
| Large apartment buildings | 15.4% |
| Mobile homes | 5.3% |
| Median rooms | 5.7 |
| Avg household size (owned) | 3.04 |
Year built
| Era | % |
|---|---|
| 2020 or later | 1.1% |
| 2010–2019 | 26.3% |
| 2000–2009 | 17.0% |
| 1990–1999 | 20.1% |
| 1980–1989 | 23.9% |
| 1970–1979 | 3.2% |
| 1960–1969 | 1.9% |
| 1950–1959 | 3.7% |
| 1940–1949 | 0.6% |
| 1939 or earlier | 2.2% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 1.0% |
| 1 bedroom | 7.4% |
| 2 bedrooms | 30.3% |
| 3 bedrooms | 39.5% |
| 4 bedrooms | 17.6% |
| 5+ bedrooms | 4.3% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 2.5% |
| 1 vehicle | 30.2% |
| 2 vehicles | 45.5% |
| 3 or more | 21.8% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 44.2% |
| Electricity | 49.3% |
| Propane / LP gas | 3.0% |
| Fuel oil | 2.3% |
| Solar | 0.3% |
| No fuel used | 0.1% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 6,794 | 54.0% |
| Cohabiting couple | 993 | 7.9% |
| Male householder, no spouse | 1,767 | 14.0% |
| Female householder, no spouse | 3,039 | 24.1% |
| Households with children under 18 | 5,400 | 42.9% |
| Households with seniors (65+) | 2,437 | 19.4% |
| Average household size | 2.87 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 35.1% | 32.7% |
| Married | 54.9% | 48.3% |
| Separated | 1.3% | 4.0% |
| Widowed | 2.8% | 4.9% |
| Divorced | 5.8% | 10.1% |
Education
Less than 9th grade
1.9%
Some HS, no diploma
3.9%
HS graduate
16.0%
Some college, no degree
18.3%
Associate's degree
6.1%
Bachelor's degree
28.7%
Graduate / professional
25.1%
| Metric | % |
|---|---|
| HS diploma or higher | 94.2% |
| Bachelor's or higher | 53.8% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 556 | 5.2% |
| Kindergarten | 410 | 3.8% |
| Elementary school | 4,334 | 40.5% |
| High school | 1,961 | 18.3% |
| College / grad school | 3,440 | 32.1% |
Employment
Industry of employment
Education & healthcare
22.3%
Professional & management
20.6%
Public administration
10.0%
Retail trade
9.4%
Arts, food & hospitality
7.7%
Construction
5.8%
Other services
5.2%
Manufacturing
5.1%
Finance & real estate
5.0%
Transportation & utilities
4.5%
Wholesale trade
2.5%
Information
1.8%
Agriculture & mining
0.2%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 58.7% |
| Service | 11.5% |
| Sales & office | 17.3% |
| Natural resources & construction | 4.9% |
| Production & transportation | 7.6% |
Employment type
| Type | % |
|---|---|
| Private sector | 74.5% |
| Government | 22.4% |
| Self-employed | 3.0% |
| Unpaid family workers | 0.0% |
Commute
| Method | % |
|---|---|
| Drive alone | 71.7% |
| Carpool | 8.0% |
| Public transit | 2.1% |
| Walk | 1.1% |
| Work from home | 16.2% |
| Other means | 0.9% |
| Avg commute (minutes) | 27.4 |
Poverty
All people
7.4%
Under 18 years
9.2%
18 and over
6.8%
Married-couple families
4.2%
Female-led households
15.0%
Income support
| Source | % of households |
|---|---|
| Social Security | 16.1% |
| Retirement income | 18.9% |
| Supplemental Security | 3.8% |
| Cash public assistance | 2.7% |
| Food stamps / SNAP | 6.0% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 26.9% |
| High blood pressure | 26.3% |
| High cholesterol | 28.2% |
| Diabetes | 7.0% |
| Heart disease | 3.4% |
| Stroke | 1.8% |
| Asthma | 8.8% |
| Arthritis | 16.5% |
| Kidney disease | 1.8% |
| Pulmonary disease | 3.6% |
| Cancer | 4.6% |
| Behavior / access | % |
|---|---|
| Smoking | 11.5% |
| Binge drinking | 14.3% |
| No physical activity | 17.3% |
| Less than 7 hrs sleep | 33.5% |
| Depression | 16.9% |
| Fair or poor health | 8.5% |
| Poor mental health | 13.0% |
| Poor physical health | 6.2% |
| No health insurance | 9.2% |
| Visited doctor (checkup) | 72.9% |
| Visited dentist | 70.1% |
| Cholesterol screening | 91.4% |
| Teeth loss | 7.0% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 1,270 | 4.9% |
| Disability | % |
|---|---|
| Any disability | 6.6% |
| Under 18 | 3.9% |
| 18–64 years | 5.5% |
| 65 and over | 23.8% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 79.3% |
| Public insurance | 24.8% |
| No insurance | 4.4% |
| Uninsured under 19 | 2.1% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 33,328 | 92.1% |
| Spanish | 2,360 | 7.1% |
| Other Indo-European | 762 | 2.3% |
| Asian & Pacific Islander | 448 | 1.3% |
| Other languages | 1,018 | 3.1% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 27,429 | 75.8% |
| Born in same state | 26,381 | 72.9% |
| Born in different state | 16,115 | 44.5% |
| Foreign born | 1,048 | 2.9% |
| Naturalized citizen | 8,747 | 24.2% |
| Not a US citizen | 5,329 | 60.9% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Italian | 3,357 | 9.3% |
| French | 2,432 | 6.7% |
| Arab | 990 | 2.7% |
| Polish | 226 | 0.6% |
| Irish | 182 | 0.5% |
| Ancestry | Count | % |
|---|---|---|
| German | 101 | 0.3% |
| Dutch | 81 | 0.2% |
| English | 23 | 0.1% |
| Norwegian | 13 | 0% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 34.8% |
| Internet access | 98.9% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 21075
What city is ZIP code 21075 in?
ZIP code 21075 is primarily assigned to Elkridge, Maryland.
What county is ZIP code 21075 in?
ZIP code 21075 falls within Howard County, Maryland.
How educated is the population of ZIP code 21075?
54% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.
What is the median household income in ZIP code 21075?
The median household income in ZIP code 21075 is $126,378, above the national median of ~$75,000.
What is the typical home value in ZIP code 21075?
The median home value in ZIP code 21075 is $413,100.
What is the population of ZIP code 21075?
ZIP code 21075 has an estimated population of 36,176 residents, with a density of 2,597 people per square mile.
What timezone is ZIP code 21075 in?
ZIP code 21075 observes the EST timezone.