ZIP Code 21723 - Cooksville Maryland

ZIP Code 21723 is located in Cooksville Maryland. 21723 is entirely within Howard County. Regionally, it is located in Metro Baltimore.

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ZIP Code 21723 Quick Stats

ZIP Code NameCooksville
Primary CountyHoward County
ZIP Code TypeStandard
Population (2022)689
Area Code(s)410 / 443 / 667
Current Time

ZIP Code 21723 Map

21723 Demographics

21723 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 21723 is White. The current unemployment level in 21723 is 2.8%.

Population Growth Rate13.28%
Population Density220 People per Square Mile
Total Households247
Percentage High Income Households21.5%
Median Household Income (2021)$247,284
Average Adjusted Gross Income (2021)$448,280
Current Unemployment Rate (May 2024)2.8%
Majority Race/EthnictyWhite - 67.17%

21723 Race/Ethnicty Breakdown

Native American00%
Hawaiian/Pac. Islander00%

21723 Educational Attainment Levels

Highest Education Level AttainedTotalPercentage
Less Than 1 Year of College275.06%
Bachelor Degree24345.51%
High School Diploma10619.85%
No High School Diploma203.75%
GED or Alternate112.06%
1 or More Years of College213.93%
Associates Degree112.06%
Masters Degree8515.92%
Professional Degree101.87%
Doctorate Degree00%

21723 Geography

Adjacent ZIP Codes
RegionMetro Baltimore
Metropolitan/Micropolitan Stat AreaBaltimore-Columbia-Towson, MD
Time ZoneEastern Daylight Time
IANA TimezoneAmerica/New_York
Area3 Square Miles

21723 Politics

US Congressional Districts in 21723
Maryland State Senate Districts in 21723
Maryland State House of Delegates Districts in 21723

21723 Schools

School Districts in 21723
Elementary Schools in 21723
Middle Schools in 21723
High Schools in 21723

21723 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

21723 Annual Climate Data

Avg Min Temp (°F)23243241515964635644352743
Avg Max Temp (°F)40445465748287857867554565
Avg Precip (In.)3.512.954.133.444.643.953.913.574.133.513.583.4344.75

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