Seneca, SD ZIP code

The ZIP code for Seneca, South Dakota is 57473. It is in Faulk County.

57473

Population in these ZIPs: 246
Avg. median income: $23,800population-weighted
Typical home value: $177,600population-weighted

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Seneca, SD ZIP code list

Seneca, SD ZIP codes
ZIP code	Population	Median income	Typical home value
57473	246	$23,750	$177,600

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 Seneca

Lebanon 10 mi
Onaka 14 mi
Faulkton 16 mi
Tolstoy 18 mi
Orient 18 mi
Hoven 23 mi
Highmore 29 mi
Rockham 29 mi
Cresbard 29 mi
Roscoe 29 mi
Onida 32 mi
Bowdle 33 mi

Frequently asked questions

What is the ZIP code for Seneca, SD?

The ZIP code for Seneca, SD is 57473.

What county is Seneca, South Dakota in?

Seneca ZIP codes are in Faulk County.