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Seaford, DE ZIP code

The ZIP code for Seaford, Delaware is 19973. It is in Sussex County.

Population in these ZIPs
26,834
Avg. median income
$64,400population-weighted
Typical home value
$314,400population-weighted
Metro area
Seaford, DE
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ZIP codes within 10 miles

Seaford, DE ZIP code list

Seaford, DE ZIP codes
ZIP codePopulationMedian incomeTypical home value
1997326,834$64,387$314,400

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

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Frequently asked questions

What is the ZIP code for Seaford, DE?

The ZIP code for Seaford, DE is 19973.

What county is Seaford, Delaware in?

Seaford ZIP codes are in Sussex County.