ZIP Code 21738 - Glenwood Maryland

ZIP Code 21738 is located in Glenwood Maryland. 21738 is entirely within Howard County. Regionally, it is located in Metro Baltimore.

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ZIP Code 21738 Quick Stats

ZIP Code NameGlenwood
Primary CountyHoward County
ZIP Code TypeStandard
Population (2022)3,786
Area Code(s)410 / 443 / 667
Current Time
EDT

ZIP Code 21738 Map

21738 Demographics

21738 can be classified socioeconomically as Upper 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 21738 is White. The majority race/ethnicity attending public schools in 21738 is White. The current unemployment level in 21738 is 2.8%.

Population3,786
Population Growth Rate0.00%
Population Density645 People per Square Mile
Total Households1,024
Percentage High Income Households41.0%
Median Houshold Income (2021)$230,250
Average Adjusted Gross Income (2020)$230,050
Current Unemployment Rate (February 2024)2.8%
Majority Race/EthnictyWhite - 95.53%
Public School Majority Race/EthnictyWhite - 70.05%

21738 Race/Ethnicty Breakdown

Race/EthnictyTotalPercentage
White3,84595.53%
Black832.06%
Hispanic160.4%
Asian812.01%
Native American00%
Hawaiian/Pac. Islander00%

21738 Public School Race/Ethnicty Breakdown

Race/EthnictyTotalPercentage
White77974.12%
Black605.71%
Hispanic696.57%
Asian13913.23%
Native American20.19%
Hawaiian/Pac. Islander20.19%

21738 Educational Attainment Levels

Highest Education Level AttainedTotalPercentage
Less Than 1 Year of College733.42%
Bachelor Degree86940.74%
High School Diploma38918.24%
No High School Diploma150.7%
GED or Alternate361.69%
1 or More Years of College27412.85%
Associates Degree1306.09%
Masters Degree30514.3%
Professional Degree120.56%
Doctorate Degree301.41%

21738 Geography

Coordinates39.27885056,-77.02616882
Adjacent ZIP Codes
RegionMetro Baltimore
Metropolitan/Micropolitan Stat AreaBaltimore-Columbia-Towson, MD
Time ZoneEastern Daylight Time
IANA TimezoneAmerica/New_York
Area6 Square Miles

21738 Politics

US Congressional Districts in 21738
Maryland State Senate Districts in 21738
Maryland State House of Delegates Districts in 21738

21738 Schools

21738 Weather and Climate Data

Plant Hardiness ZoneZone 7a: 0F to 5F
Average First Frost DateOctober 11 - 20
Average Last Frost DateApril 21 - 31
Koppen-Geiger Climate ZoneDfa - Humid Continental Hot Summers
Ecoregion64c - Piedmont Uplands

21738 Annual Climate Data

JanFebMarAprMayJunJulAugSepOctNovDecAnnual
Avg Min Temp (°F)23253241516064635644352743
Avg Max Temp (°F)40445465748286857867554565
Avg Precip (In.)3.432.984.143.44.623.923.913.544.13.533.563.4244.53

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