ZIP Code 21737 - Glenelg Maryland

21737 Overview

ZIP Code 21737 is located in Glenelg Maryland. 21737 is entirely within Howard County. Regionally, 21737 is located in Metro Baltimore.

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ZIP Code 21737 Quick Stats

ZIP Code NameGlenelg
Primary CountyHoward County
ZIP Code TypeStandard
Population (2022)2,406
Area Code(s)410 / 443 / 667
Current Time
10:50:56 PM
EST

ZIP Code 21737 Map

21737 Demographics

21737 can be classified socioeconomically as Upper 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 21737 is White. The majority race/ethnicity attending public schools in 21737 is White. The current unemployment level in 21737 is 3.3%.

Population2,406
Population Growth Rate0.00%
Population Density469 People per Square Mile
Total Households375
Percentage High Income Households23.7%
Median Household Income (2021)$250,001
Average Adjusted Gross Income (2021)$498,740
Current Unemployment Rate (January 2025)3.3%
Majority Race/EthnictyWhite - 90.43%
Public School Majority Race/EthnictyWhite - 70.31%

21737 Race/Ethnicty Breakdown

Race/EthnictyTotalPercentage
White2,11790.43%
Black40.17%
Hispanic311.32%
Asian1898.07%
Native American00%
Hawaiian/Pac. Islander00%

21737 Public School Race/Ethnicty Breakdown

Race/EthnictyTotalPercentage
White88874.12%
Black524.34%
Hispanic776.43%
Asian17914.94%
Native American20.17%
Hawaiian/Pac. Islander00%

21737 Educational Attainment Levels

Highest Education Level AttainedTotalPercentage
Less Than 1 Year of College192.97%
Bachelor Degree25039.06%
High School Diploma8112.66%
No High School Diploma00%
GED or Alternate00%
1 or More Years of College172.66%
Associates Degree00%
Masters Degree22034.38%
Professional Degree182.81%
Doctorate Degree355.47%

21737 Geography

Coordinates39.25626755,-77.01815796
Adjacent ZIP Codes
RegionMetro Baltimore
Metropolitan/Micropolitan Stat AreaBaltimore-Columbia-Towson, MD
Time ZoneEastern Standard Time
IANA TimezoneAmerica/New_York
Area5 Square Miles

21737 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

21737 Annual Climate Data

JanFebMarAprMayJunJulAugSepOctNovDecAnnual
Avg Min Temp (°F)23253241505964635643352743
Avg Max Temp (°F)41455465758287857867564565
Avg Precip (In.)3.423.044.23.374.643.893.963.524.083.553.583.4544.71

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