ZIP code 21912: Warwick, MD
21912 is a ZIP code in Warwick, Maryland, mainly in Cecil County, part of the Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metro area. About 1,536 people live here.
- Population
- 1,536
- Median household income
- $69,868
- Typical home value
- $579,200+4% in 12 months
- Median rent
- $817gross, per month
- Median age
- 58.2
- Homeowners
- 87.1%of occupied homes
Shaded: ZIP code 21912's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 21912 details
| City | Warwick |
|---|---|
| State | Maryland |
| County | Cecil County (also partly New Castle County) |
| Metro area | Philadelphia-Camden-Wilmington, PA-NJ-DE-MD |
| Time zone | Eastern Time (UTC−5), observes daylight saving time |
| Type | Standard (delivery area) |
| Land area | 33.9 sq mi, plus 1.8 sq mi of water |
| Population density | 45 people per sq mi |
| Bachelor's degree or higher | 25.3% of adults 25+ |
| Average commute | 30.8 minutes |
| Center coordinates | 39.41941, -75.81863 |
ZIP codes near 21912
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 21913 | Cecilton, MD | 2.8 mi | 820 |
| 21930 | Georgetown, MD | 5.0 mi | 25 |
| 21915 | Chesapeake City, MD | 5.5 mi | 2,471 |
| 21635 | Galena, MD | 6.0 mi | 2,085 |
| 21919 | Earleville, MD | 6.1 mi | 3,626 |
| 21650 | Massey, MD | 7.5 mi | 265 |
| 19730 | Odessa, DE | 8.8 mi | 425 |
| 19709 | Middletown, DE | 9.1 mi | 53,234 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Buying a home in 21912?
A typical home in ZIP code 21912 is worth about $579,200 (Zillow Home Value Index). The median household here earns $69,868 a year. See what buying here would cost per month, with Maryland average taxes and insurance filled in.
Monthly payment for a $579,200 homeWhat can a $69,868 income afford?Rental property numbers
About ZIP code 21912
What city is ZIP code 21912?
ZIP code 21912 is in Warwick, MD, in Cecil County.
What county is ZIP code 21912 in?
21912 is mainly in Cecil County, Maryland, and partly in New Castle County.
What is the population of ZIP code 21912?
About 1,536 people live in ZIP code 21912, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 21912 in?
21912 is in Eastern Time (UTC−5). It observes daylight saving time.