Clayton ZIP code, Delaware
The ZIP code for Clayton, DE is 19938, and its area code is 302.
- USPS city name
- 1 ZIP code
- Overlapping the city
- 1 more
- Population
- 4,222
- Area code
- 302
- County
- Kent County
- State
- Delaware
NANPA lists no telephone rate centre for Clayton itself, so these are the area codes of the nearest one, Hartly (7.2 miles). A town on an area-code boundary can differ from its neighbour.
Mail addressed to Clayton uses the ZIP code above. 1 more ZIP code covers part of the city but is addressed as somewhere else; they are listed separately below.
Clayton in numbers
About 4,222 people live in Clayton, in 1,195 households, the 22nd-largest of Delaware's 79 census places. The median household income is $107,307 a year, 26% above the Delaware median of $84,954 (US: $80,734). The median owner-occupied home is valued at $361,300 (about the same as the Delaware median), and median gross rent is $1,621 a month. The median age is 37.1; 32.1% of adults 25 and over hold a bachelor's degree or higher (35.8% across Delaware); the average commute takes 33 minutes.
| Population | 4,222 |
|---|---|
| Households | 1,195 |
| Median age | 37.1 |
| Median household income | $107,307 |
| Median home value | $361,300 |
| Median gross rent | $1,621 |
| Bachelor's degree or higher | 32.1% |
| Mean commute | 32.9 min |
| Population density | 2,167 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Clayton town. Survey estimates carry margins of error, wider for small places. Sources and methods.
ZIP codes addressed as Clayton
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
19938 | Clayton , DE | Standard | 9,561 | $99,596 | $381,000 |
Other ZIP codes overlapping Clayton
These ZIP codes cover part of Clayton but are addressed as somewhere else.
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
19977 | Smyrna , DE | Standard | 27,704 | $76,826 | $341,000 |
Map of Clayton ZIP codes
The ZIP codes of Clayton, DE, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Towns near Clayton
The nearest larger towns are Smyrna (13,165 people, 1.9 mi), Dover (39,837 people, 9.8 mi) and Middletown (24,661 people, 13 mi).
| Town | Population | Distance |
|---|---|---|
| Smyrna | 13,165 | 1.9 mi |
| Townsend | 2,832 | 9.7 mi |
| Dover | 39,837 | 9.8 mi |
| Highland Acres | 3,752 | 12.5 mi |
| Middletown | 24,661 | 12.6 mi |
| Camden | 4,106 | 12.7 mi |
| Dover Base Housing | 2,962 | 13.5 mi |
| Rising Sun-Lebanon | 4,163 | 13.8 mi |
| Riverview | 2,596 | 17.9 mi |
| Salem, NJ | 5,322 | 22.0 mi |
| Greensboro, MD | 2,634 | 22.6 mi |
| Glasgow | 15,546 | 23.5 mi |
| Bear | 22,370 | 24.0 mi |
| Chestertown, MD | 5,594 | 24.0 mi |
More nearby: every ZIP code in Kent County · Delaware ZIP codes
Cite this page
zipcodes.pro. “Clayton, DE ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/de/clayton
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