ZIP code 21918: Conowingo, MD
21918 is a ZIP code in Conowingo, Maryland, mainly in Cecil County, part of the Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metro area. About 4,169 people live here.
- Population
- 4,169
- Median household income
- $84,587
- Typical home value
- $399,700+2.4% in 12 months
- Median rent
- $876gross, per month
- Median age
- 42.9
- Homeowners
- 88.6%of occupied homes
Shaded: ZIP code 21918's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 21918 details
| City | Conowingo |
|---|---|
| State | Maryland |
| County | Cecil 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 | 17.6 sq mi, plus 2.6 sq mi of water |
| Population density | 237 people per sq mi |
| Bachelor's degree or higher | 16.1% of adults 25+ |
| Average commute | 35.6 minutes |
| Center coordinates | 39.67819, -76.17589 |
Median rent in 21918 by bedrooms
| Size | Median gross rent |
|---|---|
| 2 bedrooms | $642/mo |
| 3 bedrooms | $2,167/mo |
Gross rent includes utilities paid by the tenant. ACS 2020–2024; sizes with too few rentals to estimate are left out.
ZIP codes near 21918
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 21034 | Darlington, MD | 3.6 mi | 2,846 |
| 21917 | Colora, MD | 4.2 mi | 2,233 |
| 17563 | Peach Bottom, PA | 5.8 mi | 3,952 |
| 21160 | Whiteford, MD | 7.1 mi | 2,441 |
| 21904 | Port Deposit, MD | 7.2 mi | 6,233 |
| 19362 | Nottingham, PA | 7.5 mi | 6,092 |
| 21911 | Rising Sun, MD | 7.7 mi | 10,551 |
| 21078 | Havre De Grace, MD | 8.4 mi | 20,030 |
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 21918?
A typical home in ZIP code 21918 is worth about $399,700 (Zillow Home Value Index). The median household here earns $84,587 a year. See what buying here would cost per month, with Maryland average taxes and insurance filled in.
Monthly payment for a $399,700 homeWhat can a $84,587 income afford?Rental property numbers
About ZIP code 21918
What city is ZIP code 21918?
ZIP code 21918 is in Conowingo, MD, in Cecil County.
What county is ZIP code 21918 in?
21918 is mainly in Cecil County, Maryland.
What is the population of ZIP code 21918?
About 4,169 people live in ZIP code 21918, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 21918 in?
21918 is in Eastern Time (UTC−5). It observes daylight saving time.