| ZIP Code | 21918 |
| ZIP Code Name | Conowingo |
| Primary County | Cecil County |
| ZIP Code Type | Standard |
| Population (2021) | 4,428 |
| Area Code(s) | 410 / 443 / 667 |
| Current Time | EDT |
21918 is a United States ZIP Code located in Conowingo Maryland. 21918 is entirely within Cecil County. 21918 is within Metro Baltimore.
21918 can be classified socioeconically as a Middle Class class zipcode in comparison to other zipcodes in Maryland based on Median Household Income and Average Adjusted Gross Income. Measuring level of educational attainment the majority of adults in 21918 have at least a High School Diploma. 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 3.9%.
| Population | 4,428 |
| Population Growth Rate | 18.49% |
| Population Density | 225 People per Square Mile |
| Total Households | 1,436 |
| Percentage High Income Households | 3.5% |
| Median Houshold Income (2021) | $76,394 |
| Average Adjusted Gross Income (2019) | $65,520 |
| Current Unemployment Rate (February 2023) | 3.9% |
| Majority Race/Ethnicty | White - 95.99% |
| Public School Majority Race/Ethnicty | White - 91.65% |
| Race/Ethnicty | Total | Percentage |
|---|---|---|
| White | 4,096 | 95.99% |
| Black | 48 | 1.12% |
| Hispanic | 88 | 2.06% |
| Asian | 0 | 0% |
| Native American | 35 | 0.82% |
| Hawaiian/Pac. Islander | 0 | 0% |
| Race/Ethnicty | Total | Percentage |
|---|---|---|
| White | 373 | 93.95% |
| Black | 8 | 2.02% |
| Hispanic | 14 | 3.53% |
| Asian | 0 | 0% |
| Native American | 2 | 0.5% |
| Hawaiian/Pac. Islander | 0 | 0% |
| Highest Education Level Attained | Total | Percentage |
|---|---|---|
| Less Than 1 Year of College | 266 | 10.02% |
| Bachelor Degree | 302 | 11.37% |
| High School Diploma | 1,057 | 39.81% |
| No High School Diploma | 90 | 3.39% |
| GED or Alternate | 139 | 5.24% |
| 1 or More Years of College | 478 | 18% |
| Associates Degree | 226 | 8.51% |
| Masters Degree | 91 | 3.43% |
| Professional Degree | 0 | 0% |
| Doctorate Degree | 0 | 0% |
| Coordinates | 39.68452835,-76.16867828 |
| Adjacent ZIP Codes | |
| Region | Metro Baltimore |
| Metropolitan/Micropolitan Stat Area | Philadelphia-Camden-Wilmington, PA-NJ-DE-MD |
| Time Zone | Eastern Daylight Time |
| IANA Timezone | America/New_York |
| Area | 20 Square Miles |
| US Congressional Districts in 21918 | |
| Maryland State Senate Districts in 21918 | |
| Maryland State House of Delegates Districts in 21918 |
| School Districts in 21918 | |
| Elementary Schools in 21918 | |
| Middle Schools in 21918 | |
| High Schools in 21918 |