Skip to main content

🇺🇸 United States ZIP Code

STANDARD

21229

Baltimore

ZIP Code 21229 is a standard zip code serving Baltimore, Baltimore, Maryland (MD), in Baltimore (city) County, United States. It has an estimated population of 45,213 with a median household income of $45,055. The area falls within the America/New_York timezone.

Median Household Income vs. National Average

$0 National: $37,585 $150K+ $45,055

Location

Country
🇺🇸 United States
State / Province
Maryland (MD)
County
Baltimore (city)
City
Baltimore
Timezone
America/New_York

Coordinates

Latitude
39.285600
Longitude
-76.689900

Geographic Details

Land Area
5.88 mi²
Population Density
7690.0 people per mi² (95th percentile)
Bounding Box
39.306585°N, 39.255677°S, -76.664954°E, -76.722333°W

With 45,213 residents spread across 5.88 square miles, this area has a population density of 7690.0 people per square mile.

Demographics

45,213

Population

95th percentile

$45,055

Median Income

40th percentile

$136,100

Median Home Value

50th percentile

5.88 mi²

Land Area

The median household income in 21229 is $45,055, and the median home value is $136,100.

Housing

19,681

Total Units

17,815

Occupied Units

90.5%

Occupancy Rate

Nearby ZIP Codes

Other zip codes in Baltimore, MD.

21201

Baltimore

 21202

Baltimore

 21203

Baltimore

 21205

Baltimore

 21206

Baltimore

 21209

Baltimore

 21210

Baltimore

 21211

Baltimore

 21212

Baltimore

 21213

Baltimore

Similar ZIP Codes in Maryland

ZIP codes with similar median household income in Maryland.

20710

Bladensburg

$42,962

 20712

Mount Rainier

$44,104

 21155

Upperco

$50,670

 21206

Baltimore

$48,428

 21207

Gwynn Oak

$51,179

 21222

Dundalk

$48,267

 21239

Baltimore

$51,331

 21521

Barton

$42,000

Frequently Asked Questions

What information is available for each ZIP code?
Each ZIP code page shows city, state, county, geographic coordinates, timezone, population, median household income, median home value, housing units, land area, population density, commute time, educational attainment, area codes, and ZIP code type (Standard, PO Box, or Unique).
What are the different types of ZIP codes?
There are three types of ZIP codes: Standard (residential and commercial delivery areas), PO Box (assigned to post office box sections), and Unique (assigned to a single high-volume address like a government agency or large company). Standard ZIP codes are the most common.
How often is ZIP code data updated?
ZIP code assignments are updated quarterly by the USPS. Demographic data comes from the US Census Bureau's American Community Survey (ACS), which releases new 5-year estimates annually. ZipFYI updates its data to reflect the latest available information.
What is population density and why does it matter?
Population density measures the number of people per square mile in a ZIP code area. It helps identify urban vs. rural areas, affects real estate values, impacts service availability, and is used in market analysis. Dense urban ZIP codes may have 50,000+ people per square mile.
How are ZIP code boundaries determined?
ZIP code boundaries are determined by the USPS based on mail delivery routes, not political or geographic boundaries. They follow carrier routes and may cross city, county, or even state lines. Boundaries can change when the USPS reorganizes delivery operations.
What does median household income tell me about a ZIP code?
Median household income is the middle value when all household incomes in a ZIP code are sorted. Half of households earn more and half earn less. It is a better indicator of typical earnings than average income, which can be skewed by very high or very low outliers.