ZIP Code 21918 - Conowingo Maryland

21918 Overview

ZIP Code 21918 is located in Conowingo Maryland. 21918 is entirely within Cecil County. Regionally, 21918 is located in Metro Baltimore. Data Updated October 2, 2024

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ZIP Code 21918 Quick Stats

ZIP Code NameConowingo
Primary CountyCecil County
ZIP Code TypeStandard
Population (2022)4,462
Area Code(s)410 / 443 / 667
Current Time
EDT

ZIP Code 21918 Map

21918 Demographics

21918 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 21918 is White. The majority race/ethnicity attending public schools in 21918 is White. The current unemployment level in 21918 is 3.3%.

Population4,462
Population Growth Rate0.00%
Population Density227 People per Square Mile
Total Households1,436
Percentage High Income Households3.5%
Median Household Income (2021)$76,394
Average Adjusted Gross Income (2021)$283,410
Current Unemployment Rate (September 2024)3.3%
Majority Race/EthnictyWhite - 95.99%
Public School Majority Race/EthnictyWhite - 91.65%

21918 Race/Ethnicty Breakdown

Race/EthnictyTotalPercentage
White4,09695.99%
Black481.12%
Hispanic882.06%
Asian00%
Native American350.82%
Hawaiian/Pac. Islander00%

21918 Public School Race/Ethnicty Breakdown

Race/EthnictyTotalPercentage
White37393.95%
Black82.02%
Hispanic143.53%
Asian00%
Native American20.5%
Hawaiian/Pac. Islander00%

21918 Educational Attainment Levels

Highest Education Level AttainedTotalPercentage
Less Than 1 Year of College26610.04%
Bachelor Degree30211.4%
High School Diploma1,05739.9%
No High School Diploma903.4%
GED or Alternate1395.25%
1 or More Years of College47818.04%
Associates Degree2268.53%
Masters Degree913.44%
Professional Degree00%
Doctorate Degree00%

21918 Geography

Coordinates39.68452835,-76.16867828
Adjacent ZIP Codes
RegionMetro Baltimore
Metropolitan/Micropolitan Stat AreaPhiladelphia-Camden-Wilmington, PA-NJ-DE-MD
Time ZoneEastern Daylight Time
IANA TimezoneAmerica/New_York
Area20 Square Miles

21918 Schools

21918 Weather and Climate Data

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

21918 Annual Climate Data

JanFebMarAprMayJunJulAugSepOctNovDecAnnual
Avg Min Temp (°F)22243241516065645744352743
Avg Max Temp (°F)40435364748287857867554464
Avg Precip (In.)3.92.884.083.644.524.144.224.354.763.453.713.8347.5

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