ZIP Code 21231 - Baltimore Maryland

ZIP Code 21231 is located in Baltimore Maryland. 21231 is entirely within Baltimore City County. Regionally, it is located in Metro Baltimore.

Stats Demographics Geography Politics Schools Climate Related Pages

ZIP Code 21231 Quick Stats

ZIP Code NameBaltimore
Primary CountyBaltimore City County
ZIP Code TypeStandard
Population (2022)14,780
Area Code(s)410 / 443 / 667
Current Time

ZIP Code 21231 Map

21231 Demographics

21231 can be classified socioeconomically as Lower Middle Class class compared to other ZIP Codes in Maryland based on Median Household Income and Average Adjusted Gross Income. The majority race/ethnicity residing in 21231 is White. The majority race/ethnicity attending public schools in 21231 is African American. The current unemployment level in 21231 is 5.2%.

Population Growth Rate-5.88%
Population Density15,459 People per Square Mile
Total Households7,520
Percentage High Income Households6.2%
Median Household Income (2021)$73,089
Average Adjusted Gross Income (2020)$89,210
Current Unemployment Rate (April 2024)5.2%
Majority Race/EthnictyWhite - 57.28%
Public School Majority Race/EthnictyAfrican American - 72.20%

21231 Race/Ethnicty Breakdown

Native American350.22%
Hawaiian/Pac. Islander00%

21231 Public School Race/Ethnicty Breakdown

Native American90.32%
Hawaiian/Pac. Islander10.04%

21231 Educational Attainment Levels

Highest Education Level AttainedTotalPercentage
Less Than 1 Year of College1891.9%
Bachelor Degree3,57135.86%
High School Diploma1,67516.82%
No High School Diploma1771.78%
GED or Alternate2802.81%
1 or More Years of College8568.6%
Associates Degree5185.2%
Masters Degree1,42814.34%
Professional Degree7927.95%
Doctorate Degree4724.74%

21231 Geography

Adjacent ZIP Codes
Cities/Towns in 21231
RegionMetro Baltimore
Metropolitan/Micropolitan Stat AreaBaltimore-Columbia-Towson, MD
Time ZoneEastern Daylight Time
IANA TimezoneAmerica/New_York
Area0.95608356 Square Miles

21231 Politics

US Congressional Districts in 21231
Maryland State Senate Districts in 21231
Maryland State House of Delegates Districts in 21231

21231 Schools

School Districts in 21231

21231 Weather and Climate Data

Plant Hardiness ZoneZone 7b: 5F to 10F
Average First Frost DateNovember 11 - 20
Average Last Frost DateMarch 21 - 31
Koppen-Geiger Climate ZoneCfa - Humid Subtropical Climate
Ecoregion65n - Chesapeake Rolling Coastal Plain

21231 Annual Climate Data

Avg Min Temp (°F)27293646566570686149403148
Avg Max Temp (°F)43465667768589878069584867
Avg Precip (In.)3.583.

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