ZIP Code 21157 - Westminster Maryland

ZIP Code 21157 is located in Westminster Maryland. Portions of 21157 are also in Eldersburg. 21157 is entirely within Carroll County. Regionally, it is located in Metro Baltimore.

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ZIP Code 21157 Quick Stats

ZIP Code NameWestminster
Primary CountyCarroll County
ZIP Code TypeStandard
Population (2022)39,816
Area Code(s)410 / 443 / 667
Current Time
EDT

ZIP Code 21157 Map

21157 Demographics

21157 can be classified socioeconomically as 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 21157 is White. The majority race/ethnicity attending public schools in 21157 is White. The current unemployment level in 21157 is 2.9%.

Population39,816
Population Growth Rate7.49%
Population Density517 People per Square Mile
Total Households13,735
Percentage High Income Households5.3%
Median Houshold Income (2021)$92,846
Average Adjusted Gross Income (2020)$80,990
Current Unemployment Rate (February 2024)2.9%
Majority Race/EthnictyWhite - 90.82%
Public School Majority Race/EthnictyWhite - 76.35%

21157 Race/Ethnicty Breakdown

Race/EthnictyTotalPercentage
White36,31490.81%
Black1,5513.88%
Hispanic1,7254.31%
Asian3090.77%
Native American860.22%
Hawaiian/Pac. Islander60.02%

21157 Public School Race/Ethnicty Breakdown

Race/EthnictyTotalPercentage
White5,20479.84%
Black4216.46%
Hispanic69410.65%
Asian1782.73%
Native American100.15%
Hawaiian/Pac. Islander110.17%

21157 Educational Attainment Levels

Highest Education Level AttainedTotalPercentage
Less Than 1 Year of College1,8257.95%
Bachelor Degree4,62820.17%
High School Diploma7,14931.16%
No High School Diploma4201.83%
GED or Alternate8753.81%
1 or More Years of College3,14313.7%
Associates Degree1,9228.38%
Masters Degree2,2399.76%
Professional Degree5482.39%
Doctorate Degree1970.86%

21157 Geography

Coordinates39.54748917,-76.98146057
Adjacent ZIP Codes
Cities/Towns in 21157
RegionMetro Baltimore
Metropolitan/Micropolitan Stat AreaBaltimore-Columbia-Towson, MD
Time ZoneEastern Daylight Time
IANA TimezoneAmerica/New_York
Area77 Square Miles

21157 Politics

US Congressional Districts in 21157
Maryland State Senate Districts in 21157
Maryland State House of Delegates Districts in 21157

21157 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

21157 Annual Climate Data

JanFebMarAprMayJunJulAugSepOctNovDecAnnual
Avg Min Temp (°F)22243241505964625644352743
Avg Max Temp (°F)39435364748286847766544464
Avg Precip (In.)3.242.443.623.374.533.653.673.594.023.623.313.2242.28

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