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Wilmington, DE ZIP codes

Wilmington, Delaware has 25 ZIP codes, including 15 PO Box ZIPs. They are in New Castle County.

Population in these ZIPs
222,353
Avg. median income
$86,200population-weighted
Typical home value
$347,200population-weighted
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Click anywhere on the map to see which ZIP code it's in.

ZIP codes within 10 miles

Wilmington, DE ZIP codes list

Wilmington, DE ZIP codes
ZIP codeCountyPopulationMedian incomeTypical home value
19801New Castle County16,327$52,810$178,400
19802New Castle County26,051$53,812$198,700
19803New Castle County22,279$135,218$513,300
19804New Castle County18,779$79,701$276,300
19805New Castle County41,402$60,221$216,100
19806New Castle County9,777$88,855$361,500
19807New Castle County7,815$153,341$1,109,400
19808New Castle County39,082$94,234$368,600
19809New Castle County14,311$81,288$319,100
19810New Castle County26,530$112,775$466,300
19850 PO BoxNew Castle County———
19880 PO BoxNew Castle County———
19884 PO BoxNew Castle County———
19885 PO BoxNew Castle County———
19886 PO BoxNew Castle County———
19890 PO BoxNew Castle County———
19891 PO BoxNew Castle County———
19892 PO BoxNew Castle County———
19893 PO BoxNew Castle County———
19894 PO BoxNew Castle County———
19895 PO BoxNew Castle County———
19896 PO BoxNew Castle County———
19897 PO BoxNew Castle County———
19898 PO BoxNew Castle County———
19899 PO BoxNew Castle County———

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

Cities near Wilmington

Frequently asked questions

What is the ZIP code for Wilmington, DE?

Wilmington, DE has 25 ZIP codes: 19801, 19802, 19803, 19804, 19805, 19806, 19807, 19808, 19809, 19810, 19850, 19880, 19884, 19885, 19886, 19890, 19891, 19892, 19893, 19894, 19895, 19896, 19897, 19898 and 19899.

What county is Wilmington, Delaware in?

Wilmington ZIP codes are in New Castle County.

Which Wilmington ZIP codes are PO Boxes?

19850, 19880, 19884, 19885, 19886, 19890, 19891, 19892, 19893, 19894, 19895, 19896, 19897, 19898 and 19899 are PO Box or single-organization ZIP codes; they have no residential delivery area.