Delaware Zip Codes
63 zip codes in Delaware. Capital: Dover. Nickname: First State.
Quick Facts
- Total ZIP codes
- 63
- Counties covered
- 3
- Cities and places
- 44
- Top cities by ZIP count
- Wilmington, Felton, Bear
- Time zone
- Eastern Time (ET)
- Capital
- Dover
Top ZIP Rankings in Delaware
Ranked top 10 lists by household income, population, and home value.
About Delaware Zip Codes
Delaware (DE), known as the First State, with its capital in Dover, contains 63 unique USPS ZIP codes distributed across 3 counties and 44 distinct cities and places. The state observes Eastern Time (ET). ZIP codes here cover residential addresses, PO box ranges, business districts, and unique large-volume customer codes.
The cities with the most ZIP codes in Delaware are Wilmington, Felton, Bear, Hockessin, Middletown. Larger metro areas use multiple ZIP codes to separate neighborhoods, business districts, and PO box ranges. The counties with the highest ZIP density are New Castle County, Sussex County, Kent County, reflecting both population and geographic spread.
Delaware ZIP codes range from 19701 to 19979. The first digit reflects the USPS national region and the next two narrow down to a sectional center facility that routes mail across the state. Use the lists below to browse every ZIP code by county or by city, or jump straight to a ZIP for population, income, housing, weather, and cost of living details.
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Browse by County
- Kent County (15)
- New Castle County (26)
- Sussex County (22)
Browse by Top Cities
- Wilmington (10)
- Felton (3)
- Bear (2)
- Hockessin (2)
- Middletown (2)
- Newark (2)
- Dover (2)
- Frankford (2)
- Georgetown (2)
- Ocean View (2)
- Claymont (1)
- Delaware City (1)
- Montchanin (1)
- Historic New Castle (1)
- Odessa (1)
- Port Penn (1)
- Rockland (1)
- Saint Georges (1)
- Dover AFB (1)
- Bethany Beach (1)
- Bethel (1)
- Bridgeville (1)
- Camden Wyoming (1)
- Clayton (1)
- Dagsboro (1)
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All Zip Codes in Delaware
Kent County (15 ZIP codes)
New Castle County (26 ZIP codes)
| Zip Code | City |
|---|---|
| 19701 | Bear |
| 19702 | Bear |
| 19703 | Claymont |
| 19706 | Delaware City |
| 19707 | Hockessin |
| 19709 | Middletown |
| 19710 | Montchanin |
| 19711 | Newark |
| 19713 | Newark |
| 19720 | Historic New Castle |
| 19730 | Odessa |
| 19731 | Port Penn |
| 19732 | Rockland |
| 19733 | Saint Georges |
| 19734 | Middletown |
| 19736 | Hockessin |
| 19801 | Wilmington |
| 19802 | Wilmington |
| 19803 | Wilmington |
| 19804 | Wilmington |
| 19805 | Wilmington |
| 19806 | Wilmington |
| 19807 | Wilmington |
| 19808 | Wilmington |
| 19809 | Wilmington |
| 19810 | Wilmington |
Sussex County (22 ZIP codes)
| Zip Code | City |
|---|---|
| 19930 | Bethany Beach |
| 19931 | Bethel |
| 19933 | Bridgeville |
| 19939 | Dagsboro |
| 19940 | Delmar |
| 19941 | Ellendale |
| 19944 | Frankford |
| 19945 | Frankford |
| 19947 | Georgetown |
| 19950 | Greenwood |
| 19951 | Georgetown |
| 19956 | Laurel |
| 19958 | Lewes |
| 19960 | Lincoln |
| 19963 | Milford |
| 19966 | Millsboro |
| 19967 | Ocean View |
| 19968 | Milton |
| 19970 | Ocean View |
| 19971 | Rehoboth Beach |
| 19973 | Seaford |
| 19975 | Selbyville |
Frequently Asked Questions
How many ZIP codes does Delaware have?
Delaware has 63 ZIP codes spanning 44 cities and places across 3 counties.
What are the major cities in Delaware?
The cities with the most ZIP codes in Delaware are Wilmington, Felton, Bear, Hockessin, Middletown. Larger metro areas use multiple ZIP codes to cover individual neighborhoods.
Which county has the most ZIP codes in Delaware?
New Castle County has the most with 26 ZIP codes. The next largest counties are Sussex County, Kent County.
What time zone is Delaware in?
Delaware observes Eastern Time (ET).
What is the smallest ZIP code number in Delaware?
The lowest ZIP code in Delaware is 19701.
What is the largest ZIP code number in Delaware?
The highest ZIP code in Delaware is 19979.
How are ZIP codes structured in Delaware?
USPS ZIP codes are five digit numbers. The first digit indicates a broad U.S. region, the second and third narrow to a sectional center facility, and the last two identify a specific post office or delivery area. Delaware ZIP codes typically begin with "1".
What states border Delaware?
Delaware borders Maryland, Pennsylvania, New Jersey.
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Nearby States
Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.