Home > DE > New Castle County > Port Penn > Zip 19731

Zip Code 19731 — Port Penn, DE

19731 is a ZIP Code associated with Port Penn, DE, located within New Castle. The postal region supports an estimated population of 655 residents across Data Pending housing units, with a population density of 100.1 people per square mile.

WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (39.510200, -75.596160)

Data Metric	Local Statistic
Postal / Zip Code	19731
Primary City	Port Penn
State / Province	DE
County	New Castle
Total Population	655
Median Household Income	Data Pending
Total Housing Units	Data Pending
Population Density	100.1 people/sq mi
Timezone	America/New_York

How 19731 Compares

Metric	ZIP 19731	New Castle County	DE State Average
Population	655	573,431	1,021,605
Median Income	Data Pending	N/A	N/A
Population Density	100.1 /sq mi	--	--

Nearby ZIP Codes

ZIP Code	City	Distance	Population	Median Income
Zip 19706	Delaware City	4.2 mi	2,038	N/A
Zip 19733	Saint Georges	4.5 mi	186	N/A
Zip 19709	Middletown	4.9 mi	53,234	N/A
Zip 19730	Odessa	5.2 mi	425	N/A
Zip 19701	Bear	7.5 mi	42,984	N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →