ZIP Code 21648 is located in Madison Maryland. 21648 is entirely within Dorchester County. Regionally, it is located in the DELMARVA Region.
| ZIP Code Name | Madison |
| Primary County | Dorchester County |
| ZIP Code Type | Standard |
| Population (2022) | 181 |
| Area Code(s) | 410 / 443 / 667 |
| Current Time | EDT |
21648 can be classified socioeconomically as Middle Class class compared to other ZIP Codes in Maryland. The majority race/ethnicity residing in 21648 is White. The current unemployment level in 21648 is 4.5%.
| Population | 181 |
| Population Growth Rate | 0.00% |
| Population Density | 9 People per Square Mile |
| Total Households | 128 |
| Median Household Income (2021) | $140,694 |
| Current Unemployment Rate (April 2024) | 4.5% |
| Majority Race/Ethnicty | White - 74.79% |
| Race/Ethnicty | Total | Percentage |
|---|---|---|
| White | 89 | 74.79% |
| Black | 13 | 10.92% |
| Hispanic | 6 | 5.04% |
| Asian | 11 | 9.24% |
| Native American | 0 | 0% |
| Hawaiian/Pac. Islander | 0 | 0% |
| Highest Education Level Attained | Total | Percentage |
|---|---|---|
| Less Than 1 Year of College | 13 | 6.44% |
| Bachelor Degree | 22 | 10.89% |
| High School Diploma | 118 | 58.42% |
| No High School Diploma | 0 | 0% |
| GED or Alternate | 0 | 0% |
| 1 or More Years of College | 39 | 19.31% |
| Associates Degree | 0 | 0% |
| Masters Degree | 10 | 4.95% |
| Professional Degree | 0 | 0% |
| Doctorate Degree | 0 | 0% |
| Coordinates | 38.48940277,-76.23693085 |
| Adjacent ZIP Codes | |
| Cities/Towns in 21648 | |
| Region | DELMARVA Region |
| Metropolitan/Micropolitan Stat Area | Cambridge, MD |
| Time Zone | Eastern Daylight Time |
| IANA Timezone | America/New_York |
| Area | 21 Square Miles |
| US Congressional Districts in 21648 | |
| Maryland State Senate Districts in 21648 | |
| Maryland State House of Delegates Districts in 21648 |
| School Districts in 21648 | |
| Elementary Schools in 21648 | |
| High Schools in 21648 |
| Plant Hardiness Zone | Zone 7b: 5F to 10F | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average First Frost Date | October 21 - 31 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average Last Frost Date | April 1 - 10 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Koppen-Geiger Climate Zone | Cfa - Humid Subtropical Climate | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ecoregion | 63b - Chesapeake-Pamlico Lowlands and Tidal Marshes | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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