ZIP Code 21912 - Warwick Maryland
Overview
ZIP Code 21912 is located in Warwick Maryland. 21912 is entirely within Cecil County. Regionally, 21912 is located in Metro Baltimore.
ZIP Code 21912 Quick Stats
| ZIP Code Name | Warwick |
| Primary County | Cecil County |
| ZIP Code Type | Standard |
| Population (2022) | 1,495 |
| Area Code(s) | 410 / 443 / 667 |
| Current Time | EDT |
ZIP Code 21912 Map
21912 Demographics
21912 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 21912 is White. The current unemployment level in 21912 is 4.4%.
| Population | 1,495 |
| Population Growth Rate | 25.5% |
| Population Density | 43 People per Square Mile |
| Total Households | 385 |
| Percentage High Income Households | 4.9% |
| Median Household Income (2021) | $71,995 |
| Average Adjusted Gross Income (2021) | $629,680 |
| Current Unemployment Rate (May 2026) | 4.4% |
| Sales Tax Rate (2025) | 6% |
| Majority Race/Ethnicity | White - 97.7% |
21912 Race/Ethnicity Breakdown
| Race/Ethnicity | Total | Percentage |
|---|---|---|
| White | 1,361 | 97.7% |
| Black | 32 | 2.3% |
| Hispanic | 0 | 0% |
| Asian | 0 | 0% |
| Native American | 0 | 0% |
| Hawaiian/Pac. Islander | 0 | 0% |
21912 Educational Attainment Levels
| Highest Education Level | Total | Percentage |
|---|---|---|
| Less Than 1 Year of College | 187 | 26.71% |
| Bachelor Degree | 73 | 10.43% |
| High School Diploma | 189 | 27% |
| No High School Diploma | 38 | 5.43% |
| GED or Alternate | 36 | 5.14% |
| 1 or More Years of College | 53 | 7.57% |
| Associates Degree | 105 | 15% |
| Masters Degree | 9 | 1.29% |
| Professional Degree | 10 | 1.43% |
| Doctorate Degree | 0 | 0% |
21912 Geography
| Coordinates | 39.42302704, -75.81743622 |
| 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 | 34 Square Miles |
21912 Schools
| School Districts in 21912 | |
| Elementary Schools in 21912 | |
| Middle Schools in 21912 | |
| High Schools in 21912 |
21912 Weather and Climate Data
| Plant Hardiness Zone | Zone 7a: 0F to 5F | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average First Frost Date | October 21 - 31 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average Last Frost Date | April 11 - 20 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Koppen-Geiger Climate Zone | Cfa - Humid Subtropical Climate | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ecoregion | 63f - Delmarva Uplands | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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