Sioux County, ND ZIP Codes

8 ZIP codes cover all or part of Sioux County, North Dakota: 58538, 57642, 58528, 58568, 58570, 57641, 57645 and 57660. The Census Bureau counts 3,740 residents in the county, with a median household income of $42,083 and a median home value of $85,400. Median household income ranges from $34,858 in 58538 to $58,750 in 57642. Its largest communities include Cannon Ball, Selfridge, Porcupine and Fort Yates.

Sioux County (Census county figures)

MeasureCensus figure
Residents3,740
Households1,112
Median household income$42,083
Median home value$85,400
Median age28.2
Median rent$444

All 8 ZIP codes together

MeasureValue
Residents (sum of ZIP codes)6,308
Households (sum of ZIP codes)1,923
Median household income, range across ZIP codes$34,858 (58538) to $58,750 (57642)
Household-weighted average of ZIP medians (an approximation, not a true median)$45,752
Homeowners54.2%
Households with kids under 1843.4%
Moved in the past year6.2%
Carrier routes in EDDM2GO's route library8 routes, 478 homes (6 of 8 ZIP codes)

Top facts

Every ZIP code in Sioux County

ZIPMailing cityResidentsHouseholdsMedian incomeHome valueHomeownersWith kidsNew moversCarrier routesMailboxesWhy listed
58538Fort Yates2,171667$34,858$88,50041.5%44.2%9.6%277100% of its land
57642Mc Laughlin1,969559$58,750$70,00053.3%48.1%3.2%21493% of its land
58528Cannon Ball677168$33,333—33.3%53.6%7.5%128100% of its land
58568Selfridge544166$58,636$81,00059.6%45.8%5.4%195100% of its land
58570Solen437132$110,938$120,10096.2%37.9%4.8%110949% of its land
57641Mc Intosh215104$83,750$77,50081.7%18.3%3.7%——28% of its land
57645Morristown18478$56,667$52,10083.3%23.1%0.0%——21% of its land
57660Corson County11149$67,292$86,30071.4%36.7%6.7%13512% of its land

A ZIP code is listed for Sioux County when at least 10% of its land is in the county, when it holds at least 10% of the county's land, or when the county is its main county. Totals add up whole ZIP codes, including parts that cross the county line; the Census county figures above do not.

Cities and communities

Price a mailing to Sioux County ZIP codes

EDDM guides

Pick carrier routes on the EDDM route map

Frequently asked questions

What ZIP codes are in Sioux County, ND?
58538, 57642, 58528, 58568, 58570, 57641, 57645 and 57660. Some cross the county line; the table shows each ZIP's share of land in the county.
What is the population of Sioux County?
3,740 residents in 1,112 households (ACS 5-year estimates, 2020–2024).
What is the median household income in Sioux County?
$42,083 for the county as a whole. Its ZIP codes range from $34,858 (58538) to $58,750 (57642).
Which Sioux County ZIP code has the highest median household income?
57642, at $58,750, among ZIP codes with at least 1,000 residents.
How many carrier routes and mailboxes are in Sioux County?
For the 6 of 8 ZIP codes in EDDM2GO's stored route library: 8 carrier routes reaching 478 residential and 15 business mailboxes. The route map loads the rest when you search them.

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.