21234 ZIP Code — Parkville, MD
Baltimore County, Maryland
ZIP code 21234 is located in Parkville, Maryland, within Baltimore County. It covers approximately 13.35 square miles and serves a population of 66,095 residents. This is a po box ZIP code in the Eastern (ET) timezone, served by area code 410/443.
About ZIP code 21234
The housing stock consists of a mix of housing types. Most homes were built in the 1950s, giving the area an established character. Median home value is $263,100. Owner-occupancy sits near the national average at 65%.
Median household income is $80,692. The poverty rate of 7% is below the national average. 33% 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 27 minutes is near the national average.
Educational attainment is near the national average, with 37% of residents holding a bachelor's degree or higher.
66,095
population
13.35
sq mi land
PO Box
ZIP type
Eastern (ET)
timezone
21234 ZIP code map
Cities in ZIP code 21234
Below are the cities the US Postal Service accepts for ZIP code 21234. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Parkville | Acceptable |
| Parkville | Preferred |
Nearby ZIP codes
21236 Nottingham (2.2 mi)
21286 Towson (2.8 mi)
21214 Baltimore (3.4 mi)
21239 Baltimore (3.7 mi)
21206 Baltimore (4 mi)
21237 Rosedale (4.1 mi)
21057 Glen Arm (4.2 mi)
21251 Baltimore (4.4 mi)
21128 Perry Hall (4.7 mi)
21252 Towson (4.7 mi)
21212 Baltimore (5.2 mi)
21204 Towson (5.6 mi)
Demographics
updated 06/2026
| Population | |
|---|---|
| Total population | 66,095 |
| Population density | 4,951 / sq mi |
| State FIPS | 24 |
| County FIPS | 005 |
| Geography | |
|---|---|
| Land area | 13.35 sq mi |
| Water area | 0.00 sq mi |
| Latitude | 39.3919 |
| Longitude | -76.5295 |
| Timezone | Eastern (ET) |
| Area code | 410/443 |
Total population by age
Gender
Race & ethnicity
Economics
updated 06/2026
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 33.0% | 31.4% | 28.2% |
| $50k – $100k | 34.0% | 30.7% | 28.2% |
| $100k – $200k | 26.1% | 28.5% | 30.1% |
| Over $200k | 6.9% | 9.5% | 13.4% |
Demographics & statistics
66,095
Population
4,951
People per sq mi
40.5
Median age
$80,692
Median household income
$43,545
Per capita income
$263,100
Median home value
$1,455
Median monthly rent
64.9%
Home ownership
7.1%
Poverty rate
4.1%
Unemployment
20,271
Housing units
36.5%
Bachelor's or higher
Age distribution
Male
Female
1,886
Under 5
2,141
1,628
5–9
1,848
2,020
10–14
2,292
1,678
15–19
1,905
1,505
20–24
1,708
4,232
25–34
4,803
4,233
35–44
4,804
3,760
45–54
4,267
2,011
55–59
2,282
2,178
60–64
2,473
2,906
65–74
3,299
1,730
75–84
1,964
1,191
85+
1,351
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 14,124 | 21.4% |
| 18 and over | 51,971 | 78.6% |
| 65 and over | 12,441 | 18.8% |
| Median age | 40.5 years | |
Race & ethnicity
White
58.5%
Black or African American
28.9%
Asian
4.5%
Two or more races
4%
Hispanic or Latino
2.8%
Other race
1.1%
American Indian / Alaska Native
0.2%
| Group | Count | % |
|---|---|---|
| White | 39,802 | 58.5% |
| Black or African American | 19,646 | 28.9% |
| Asian | 3,041 | 4.5% |
| Two or more races | 2,736 | 4% |
| Hispanic or Latino | 1,900 | 2.8% |
| Other race | 753 | 1.1% |
| American Indian / Alaska Native | 117 | 0.2% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 33.0% | 31.4% | 28.2% |
| $50k – $100k | 34.0% | 30.7% | 28.2% |
| $100k – $200k | 26.1% | 28.5% | 30.1% |
| Over $200k | 6.9% | 9.5% | 13.4% |
Under $10k
3.7%
$10k–$15k
1.6%
$15k–$25k
4.2%
$25k–$35k
6.4%
$35k–$50k
11.7%
$50k–$75k
17.9%
$75k–$100k
14.1%
$100k–$150k
21.7%
$150k–$200k
9.5%
$200k+
9.1%
| Range | % of households |
|---|---|
| Under $10k | 3.7% |
| $10k–$15k | 1.6% |
| $15k–$25k | 4.2% |
| $25k–$35k | 6.4% |
| $35k–$50k | 11.7% |
| $50k–$75k | 17.9% |
| $75k–$100k | 14.1% |
| $100k–$150k | 21.7% |
| $150k–$200k | 9.5% |
| $200k+ | 9.1% |
| Median income | $80,692 |
Housing
Home values
Under $50k
2.2%
$50k–$100k
0.7%
$100k–$150k
5.0%
$150k–$200k
14.0%
$200k–$300k
45.5%
$300k–$500k
28.1%
$500k–$1M
4.0%
$1M+
0.5%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $263,100 |
| Median rent / month | $1,455 |
| Owner occupied | 64.9% |
| Renter occupied | 35.1% |
| Vacant | 7.9% |
| Single-family detached | 45.4% |
| Large apartment buildings | 9.3% |
| Mobile homes | 0.2% |
| Median rooms | 6.1 |
| Avg household size (owned) | 2.57 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.0% |
| 2010–2019 | 1.5% |
| 2000–2009 | 2.2% |
| 1990–1999 | 14.3% |
| 1980–1989 | 11.7% |
| 1970–1979 | 13.0% |
| 1960–1969 | 12.2% |
| 1950–1959 | 27.2% |
| 1940–1949 | 8.4% |
| 1939 or earlier | 9.5% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 1.5% |
| 1 bedroom | 12.5% |
| 2 bedrooms | 25.4% |
| 3 bedrooms | 42.8% |
| 4 bedrooms | 14.6% |
| 5+ bedrooms | 3.3% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 8.5% |
| 1 vehicle | 40.1% |
| 2 vehicles | 37.5% |
| 3 or more | 14.0% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 61.3% |
| Electricity | 31.5% |
| Propane / LP gas | 1.7% |
| Fuel oil | 4.4% |
| Wood | 0.1% |
| Solar | 0.1% |
| No fuel used | 0.6% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 10,883 | 39.4% |
| Cohabiting couple | 1,776 | 6.4% |
| Male householder, no spouse | 5,665 | 20.5% |
| Female householder, no spouse | 9,274 | 33.6% |
| Households with children under 18 | 8,135 | 29.5% |
| Households with seniors (65+) | 9,425 | 34.2% |
| Average household size | 2.37 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 37.6% | 35.1% |
| Married | 46.4% | 40.6% |
| Separated | 0.8% | 1.4% |
| Widowed | 4.1% | 11.2% |
| Divorced | 11.1% | 11.7% |
Education
Less than 9th grade
2.5%
Some HS, no diploma
5.2%
HS graduate
27.1%
Some college, no degree
19.6%
Associate's degree
9.1%
Bachelor's degree
22.5%
Graduate / professional
14.0%
| Metric | % |
|---|---|
| HS diploma or higher | 92.4% |
| Bachelor's or higher | 36.5% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 1,214 | 7.7% |
| Kindergarten | 805 | 5.1% |
| Elementary school | 6,083 | 38.5% |
| High school | 2,991 | 18.9% |
| College / grad school | 4,705 | 29.8% |
Employment
Industry of employment
Education & healthcare
29.1%
Professional & management
12.1%
Retail trade
11.4%
Arts, food & hospitality
7.7%
Finance & real estate
7.2%
Public administration
7.2%
Construction
5.7%
Transportation & utilities
5.4%
Manufacturing
5.3%
Other services
4.4%
Wholesale trade
2.5%
Information
1.6%
Agriculture & mining
0.5%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 44.4% |
| Service | 16.1% |
| Sales & office | 22.4% |
| Natural resources & construction | 6.8% |
| Production & transportation | 10.2% |
Employment type
| Type | % |
|---|---|
| Private sector | 76.7% |
| Government | 19.5% |
| Self-employed | 3.5% |
| Unpaid family workers | 0.2% |
Commute
| Method | % |
|---|---|
| Drive alone | 76.4% |
| Carpool | 7.7% |
| Public transit | 1.8% |
| Walk | 0.9% |
| Work from home | 11.8% |
| Other means | 1.5% |
| Avg commute (minutes) | 27.1 |
Poverty
All people
7.1%
Under 18 years
7.6%
18 and over
6.9%
Married-couple families
2.8%
Female-led households
8.1%
Income support
| Source | % of households |
|---|---|
| Social Security | 32.9% |
| Retirement income | 26.9% |
| Supplemental Security | 3.2% |
| Cash public assistance | 1.7% |
| Food stamps / SNAP | 7.7% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 30.1% |
| High blood pressure | 34.8% |
| High cholesterol | 32.5% |
| Diabetes | 9.2% |
| Heart disease | 6.1% |
| Stroke | 3.0% |
| Asthma | 9.9% |
| Arthritis | 25.7% |
| Kidney disease | 2.9% |
| Pulmonary disease | 5.7% |
| Cancer | 7.6% |
| Behavior / access | % |
|---|---|
| Smoking | 14.1% |
| Binge drinking | 14.9% |
| No physical activity | 22.4% |
| Less than 7 hrs sleep | 32.5% |
| Depression | 18.8% |
| Fair or poor health | 12.6% |
| Poor mental health | 14.3% |
| Poor physical health | 8.4% |
| No health insurance | 10.4% |
| Visited doctor (checkup) | 77.5% |
| Visited dentist | 65.5% |
| Cholesterol screening | 92.5% |
| Teeth loss | 10.6% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 3,669 | 7.1% |
| Disability | % |
|---|---|
| Any disability | 12.3% |
| Under 18 | 2.7% |
| 18–64 years | 10.4% |
| 65 and over | 29.4% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 77.0% |
| Public insurance | 35.1% |
| No insurance | 4.1% |
| Uninsured under 19 | 2.0% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 62,068 | 93.9% |
| Spanish | 1,771 | 2.9% |
| Other Indo-European | 282 | 0.5% |
| Asian & Pacific Islander | 587 | 0.9% |
| Other languages | 681 | 1.1% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 60,078 | 90.9% |
| Born in same state | 59,157 | 89.5% |
| Born in different state | 47,062 | 71.2% |
| Foreign born | 921 | 1.4% |
| Naturalized citizen | 6,017 | 9.1% |
| Not a US citizen | 4,097 | 68.1% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Italian | 8,620 | 13% |
| French | 5,843 | 8.8% |
| Arab | 1,441 | 2.2% |
| Norwegian | 311 | 0.5% |
| English | 281 | 0.4% |
| Ancestry | Count | % |
|---|---|---|
| Polish | 202 | 0.3% |
| Irish | 193 | 0.3% |
| German | 119 | 0.2% |
| Dutch | 63 | 0.1% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 41.8% |
| Internet access | 93.2% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 21234
What part of Parkville is ZIP code 21234?
ZIP code 21234 covers a portion of Parkville, Maryland, within Baltimore County.
What county is ZIP code 21234 in?
ZIP code 21234 falls within Baltimore County, Maryland.
What is the population of ZIP code 21234?
ZIP code 21234 has an estimated population of 66,095 residents, with a density of 4,949 people per square mile.
What is the median household income in ZIP code 21234?
The median household income in ZIP code 21234 is $80,692, above the national median of ~$75,000.
What is the typical home value in ZIP code 21234?
The median home value in ZIP code 21234 is $263,100.
What timezone is ZIP code 21234 in?
ZIP code 21234 observes the EST timezone.