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Zip Code 57038 — Jefferson, SD

57038 is a ZIP Code associated with Jefferson, SD, located within Union. The postal region supports an estimated population of 1,796 residents across Data Pending housing units, with a population density of 13.7 people per square mile.

WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (42.579240, -96.579570)

Data Metric	Local Statistic
Postal / Zip Code	57038
Primary City	Jefferson
State / Province	SD
County	Union
Total Population	1,796
Median Household Income	Data Pending
Total Housing Units	Data Pending
Population Density	13.7 people/sq mi
Timezone	America/Chicago

How 57038 Compares

Metric	ZIP 57038	Union County	SD State Average
Population	1,796	14,418	906,188
Median Income	Data Pending	N/A	N/A
Population Density	13.7 /sq mi	--	--

Nearby ZIP Codes

ZIP Code	City	Distance	Population	Median Income
Zip 57049	North Sioux City	5.3 mi	7,962	N/A
Zip 57025	Elk Point	11.0 mi	3,120	N/A
Zip 57010	Burbank	20.3 mi	755	N/A
Zip 57069	Vermillion	27.6 mi	13,091	N/A
Zip 57001	Alcester	29.2 mi	1,540	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 →