Hunt Valley, MD · standard
ZIP Code 21031
Baltimore County, Maryland - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 4
- 2/sq mi Low-density area
- 0.0%
- Bachelor's or higher Below-average bachelor's attainment
National ZIP placement
Hunt Valley has 4 residents, placing it among the least populous of the 33,099 US ZIP codes with a reported population, at 2 people per square mile.
Source: USPS ZIP record + U.S. Census Bureau ZIP population. Rank compares ZIP 21031 against every US ZIP with a reported population; income/home-value percentiles are not available for this ZIP.
ZIP code 21031 is a sparsely populated ZIP (a standard USPS delivery area) in Hunt Valley, Baltimore County, Maryland, home to just 4 residents across 2.5 square miles, a density of 2 people per square mile, in the New York time zone.
With fewer than 100 residents on file, this page keeps the Census figures below and skips the multi-chart expansion used on larger ZIPs. Small-N ACS estimates are already unstable enough without padding the page around them.
Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 21031, Hunt Valley, MD · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.
Quick Facts
4
Population
2.5
Area (sq mi)
2
People / sq mi
New York
Time Zone
standard
ZIP Type
Who lives in ZIP 21031?
-
Median Age
0.0%
Male
100.0%
Female
0.0%
Foreign-Born
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How much do residents earn?
0.0%
Poverty Rate
0.0%
Unemployment Rate
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
19housing units
19
Total Housing Units
19
Occupied Units
0
Vacant Units
1.37
Avg Household Size
Occupancy Type
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What businesses operate in this ZIP?
Census Bureau data shows 320 business establishments in ZIP 21031, employing approximately 16,462 people with a combined annual payroll of $1,492,986,000.
320
Businesses
16,462
Employees
$1.5B
Annual Payroll
14
Industry Sectors
Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.
Nearby ZIP Codes
Want a side-by-side? Compare 21031 vs 21030 →
Related Areas
Frequently Asked Questions
What county is ZIP code 21031 in?
ZIP code 21031 (Hunt Valley) is located in Baltimore County, Maryland. Baltimore County contains multiple ZIP codes, see the full list at /counties/baltimore-md-24005.
What is the population of ZIP code 21031?
ZIP code 21031 in Hunt Valley, MD has a population of 4 according to the Census Bureau ACS 2023 estimates.
Take this with you
What to do with ZIP 21031's numbers, next.
- See how ZIP 21031 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Hunt Valley, MD ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
- Save this ZIP to your shortlist to track alongside others you're considering View your shortlist
ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.