21031 ZIP Code — Hunt Valley, MD
Baltimore County, Maryland
ZIP code 21031 is located in Hunt Valley, Maryland, within Baltimore County. It covers approximately 0.94 square miles and serves a population of 26 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 410/443.
26
population
0.94
sq mi land
Standard
ZIP type
Eastern (ET)
timezone
21031 ZIP code map
Cities in ZIP code 21031
Below are the cities the US Postal Service accepts for ZIP code 21031. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Hunt Valley | Acceptable |
Demographics
updated 05/2026
| Population | |
|---|---|
| Total population | 26 |
| Population density | 28 / sq mi |
| State FIPS | 24 |
| County FIPS | 005 |
| Geography | |
|---|---|
| Land area | 0.94 sq mi |
| Water area | 0.00 sq mi |
| Latitude | 39.4861 |
| Longitude | -76.6575 |
| Timezone | Eastern (ET) |
| Area code | 410/443 |
Total population by age
Gender
Race & ethnicity
Economics
updated 05/2026
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 100.0% | 31.4% | 28.2% |
| $50k – $100k | 0.0% | 30.7% | 28.2% |
| $100k – $200k | 0.0% | 28.5% | 30.1% |
| Over $200k | 0.0% | 9.5% | 13.4% |
Demographics & statistics
26
Population
28
People per sq mi
0.0
Median age
$0
Median household income
$0
Per capita income
$0
Median home value
$0
Median monthly rent
0.0%
Home ownership
0.0%
Poverty rate
0.0%
Unemployment
0
Housing units
0.0%
Bachelor's or higher
Age distribution
Male
Female
0
Under 5
8
0
25–34
18
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 8 | 30.8% |
| 18 and over | 18 | 69.2% |
| 65 and over | 0 | 0.0% |
| Median age | 0.0 years | |
Race & ethnicity
Black or African American
100%
| Group | Count | % |
|---|---|---|
| Black or African American | 26 | 100% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 100.0% | 31.4% | 28.2% |
| $50k – $100k | 0.0% | 30.7% | 28.2% |
| $100k – $200k | 0.0% | 28.5% | 30.1% |
| Over $200k | 0.0% | 9.5% | 13.4% |
$35k–$50k
100.0%
| Range | % of households |
|---|---|
| $35k–$50k | 100.0% |
| Median income | $0 |
Housing
Home values
Housing overview
| Metric | Value |
|---|---|
| Median home value | $0 |
| Median rent / month | $0 |
| Owner occupied | 0.0% |
| Renter occupied | 100.0% |
| Vacant | 0.0% |
| Single-family detached | 0.0% |
| Large apartment buildings | 0.0% |
| Mobile homes | 0.0% |
| Median rooms | 0.0 |
| Avg household size (owned) | 0.00 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.0% |
| 2010–2019 | 0.0% |
| 2000–2009 | 100.0% |
| 1990–1999 | 0.0% |
| 1980–1989 | 0.0% |
| 1970–1979 | 0.0% |
| 1960–1969 | 0.0% |
| 1950–1959 | 0.0% |
| 1940–1949 | 0.0% |
| 1939 or earlier | 0.0% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 0.0% |
| 1 bedroom | 100.0% |
| 2 bedrooms | 0.0% |
| 3 bedrooms | 0.0% |
| 4 bedrooms | 0.0% |
| 5+ bedrooms | 0.0% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 0.0% |
| 1 vehicle | 100.0% |
| 2 vehicles | 0.0% |
| 3 or more | 0.0% |
Heating fuel
| Fuel type | % |
|---|---|
| Electricity | 100.0% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 0 | 0.0% |
| Cohabiting couple | 0 | 0.0% |
| Male householder, no spouse | 0 | 0.0% |
| Female householder, no spouse | 18 | 100.0% |
| Households with children under 18 | 18 | 100.0% |
| Households with seniors (65+) | 0 | 0.0% |
| Average household size | 1.44 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 0.0% | 100.0% |
| Married | 0.0% | 0.0% |
| Separated | 0.0% | 0.0% |
| Widowed | 0.0% | 0.0% |
| Divorced | 0.0% | 0.0% |
Education
Less than 9th grade
0.0%
Some HS, no diploma
0.0%
HS graduate
0.0%
Some college, no degree
100.0%
Associate's degree
0.0%
Bachelor's degree
0.0%
Graduate / professional
0.0%
| Metric | % |
|---|---|
| HS diploma or higher | 100.0% |
| Bachelor's or higher | 0.0% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 0 | 0.0% |
| Kindergarten | 0 | 0.0% |
| Elementary school | 0 | 0.0% |
| High school | 0 | 0.0% |
| College / grad school | 0 | 0.0% |
Employment
Industry of employment
Transportation & utilities
100.0%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 100.0% |
| Service | 0.0% |
| Sales & office | 0.0% |
| Natural resources & construction | 0.0% |
| Production & transportation | 0.0% |
Employment type
| Type | % |
|---|---|
| Private sector | 100.0% |
| Government | 0.0% |
| Self-employed | 0.0% |
| Unpaid family workers | 0.0% |
Commute
| Method | % |
|---|---|
| Drive alone | 0.0% |
| Carpool | 0.0% |
| Public transit | 0.0% |
| Walk | 100.0% |
| Work from home | 0.0% |
| Other means | 0.0% |
| Avg commute (minutes) | 0.0 |
Poverty
All people
0.0%
Under 18 years
0.0%
18 and over
0.0%
Married-couple families
0.0%
Female-led households
0.0%
Income support
| Source | % of households |
|---|---|
| Social Security | 0.0% |
| Retirement income | 0.0% |
| Supplemental Security | 0.0% |
| Cash public assistance | 0.0% |
| Food stamps / SNAP | 0.0% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 0.0% |
| High blood pressure | 0.0% |
| High cholesterol | 0.0% |
| Diabetes | 0.0% |
| Heart disease | 0.0% |
| Stroke | 0.0% |
| Asthma | 0.0% |
| Arthritis | 0.0% |
| Kidney disease | 0.0% |
| Pulmonary disease | 0.0% |
| Cancer | 0.0% |
| Behavior / access | % |
|---|---|
| Smoking | 0.0% |
| Binge drinking | 0.0% |
| No physical activity | 0.0% |
| Less than 7 hrs sleep | 0.0% |
| Depression | 0.0% |
| Fair or poor health | 0.0% |
| Poor mental health | 0.0% |
| Poor physical health | 0.0% |
| No health insurance | 0.0% |
| Visited doctor (checkup) | 0.0% |
| Visited dentist | 0.0% |
| Cholesterol screening | 0.0% |
| Teeth loss | 0.0% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 0 | 0.0% |
| Disability | % |
|---|---|
| Any disability | 0.0% |
| Under 18 | 0.0% |
| 18–64 years | 0.0% |
| 65 and over | 0.0% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 100.0% |
| Public insurance | 0.0% |
| No insurance | 0.0% |
| Uninsured under 19 | 0.0% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 18 | 69.2% |
| Spanish | 0 | 0.0% |
| Other Indo-European | 0 | 0.0% |
| Asian & Pacific Islander | 0 | 0.0% |
| Other languages | 0 | 0.0% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 26 | 100.0% |
| Born in same state | 26 | 100.0% |
| Born in different state | 26 | 100.0% |
| Foreign born | 0 | 0.0% |
| Naturalized citizen | 0 | 0.0% |
| Not a US citizen | 0 | 0.0% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 69.2% |
| Internet access | 100.0% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 21031
What city is ZIP code 21031 in?
ZIP code 21031 is primarily assigned to Hunt Valley, Maryland.
What county is ZIP code 21031 in?
ZIP code 21031 falls within Baltimore County, Maryland.
Is ZIP code 21031 family-oriented?
31% of residents in ZIP code 21031 are under 18, reflecting a younger, family-oriented community.
What is the population of ZIP code 21031?
ZIP code 21031 has an estimated population of 26 residents, with a density of 28 people per square mile.
What timezone is ZIP code 21031 in?
ZIP code 21031 observes the EST timezone.