ZIP Code 21640 - Henderson Maryland

ZIP Code 21640 is located in Henderson Maryland. 21640 is primarily within Caroline County, with some portions in Queen Annes County. Regionally, it is located in the DELMARVA Region.

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ZIP Code 21640 Quick Stats

ZIP Code NameHenderson
Primary CountyCaroline County
ZIP Code TypeStandard
Population (2022)1,374
Area Code(s)410 / 443 / 667
Current Time
EDT

ZIP Code 21640 Map

21640 Demographics

21640 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 21640 is White. The current unemployment level in 21640 is 3.4%.

Population1,374
Population Growth Rate0.00%
Population Density47 People per Square Mile
Total Households527
Median Houshold Income (2021)$70,875
Average Adjusted Gross Income (2020)$48,660
Current Unemployment Rate (February 2024)3.4%
Majority Race/EthnictyWhite - 68.65%

21640 Race/Ethnicty Breakdown

Race/EthnictyTotalPercentage
White1,27268.65%
Black00%
Hispanic55329.84%
Asian00%
Native American281.51%
Hawaiian/Pac. Islander00%

21640 Educational Attainment Levels

Highest Education Level AttainedTotalPercentage
Less Than 1 Year of College9111.59%
Bachelor Degree577.26%
High School Diploma37447.64%
No High School Diploma425.35%
GED or Alternate597.52%
1 or More Years of College11714.9%
Associates Degree182.29%
Masters Degree273.44%
Professional Degree00%
Doctorate Degree00%

21640 Geography

Coordinates39.06980515,-75.81958008
Adjacent ZIP Codes
Cities/Towns in 21640
RegionsDELMARVA Region
Metro Baltimore
Metropolitan/Micropolitan Stat AreaBaltimore-Columbia-Towson, MD
Time ZoneEastern Daylight Time
IANA TimezoneAmerica/New_York
Area29 Square Miles

21640 Politics

US Congressional Districts in 21640
Maryland State Senate Districts in 21640
Maryland State House of Delegates Districts in 21640

21640 Weather and Climate Data

Plant Hardiness ZoneZone 7a: 0F to 5F
Average First Frost DateOctober 21 - 31
Average Last Frost DateApril 11 - 20
Koppen-Geiger Climate ZoneCfa - Humid Subtropical Climate
Ecoregion63f - Delmarva Uplands

21640 Annual Climate Data

JanFebMarAprMayJunJulAugSepOctNovDecAnnual
Avg Min Temp (°F)25273442526166655846373045
Avg Max Temp (°F)43465566758388868069584866
Avg Precip (In.)3.762.944.143.44.23.743.984.14.23.343.273.5244.59

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