McCook County, SD ZIP Codes

9 ZIP codes cover all or part of McCook County, South Dakota. The Census Bureau counts 5,751 residents in the county, with a median household income of $83,852 and a median home value of $230,100. Median household income ranges from $64,375 in 57043 to $94,375 in 57012. Its largest communities include Salem, Canistota, Montrose, Bridgewater and Monroe.

McCook County (Census county figures)

MeasureCensus figure
Residents5,751
Households2,221
Median household income$83,852
Median home value$230,100
Median age39.5
Median rent$945

All 9 ZIP codes together

MeasureValue
Residents (sum of ZIP codes)8,751
Households (sum of ZIP codes)3,428
Median household income, range across ZIP codes$64,375 (57043) to $94,375 (57012)
Household-weighted average of ZIP medians (an approximation, not a true median)$80,538
Homeowners81.1%
Households with kids under 1827.2%
Moved in the past year8.6%
Carrier routes in EDDM2GO's route library8 routes, 1,677 homes (5 of 9 ZIP codes)

Top facts

Every ZIP code in McCook County

ZIPMailing cityResidentsHouseholdsMedian incomeHome valueHomeownersWith kidsNew moversCarrier routesMailboxesWhy listed
57058Salem1,881794$84,286$228,60073.0%23.0%14.1%365396% of its land
57043Marion1,630663$64,375$221,50079.5%26.2%13.0%——11% of its land
57048Montrose1,237447$84,081$348,00086.6%30.6%4.1%237390% of its land
57012Canistota1,168445$94,375$180,20081.1%35.3%8.5%1358100% of its land
57332Emery903303$69,583$160,70089.1%34.3%4.3%123116% of its land
57319Bridgewater881359$69,792$170,70079.4%21.2%5.7%——71% of its land
57321Canova390113$93,125$119,200100.0%24.8%4.1%——17% of its land
57047Monroe389196$55,417$68,30081.1%19.4%5.4%——77% of its land
57374Spencer272108$79,167$215,30091.7%33.3%0.7%110754% of its land

A ZIP code is listed for McCook 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 McCook County ZIP codes

EDDM guides

Pick carrier routes on the EDDM route map

Frequently asked questions

What ZIP codes are in McCook County, SD?
57058, 57043, 57048, 57012, 57332, 57319, 57321, 57047 and 57374. Some cross the county line; the table shows each ZIP's share of land in the county.
What is the population of McCook County?
5,751 residents in 2,221 households (ACS 5-year estimates, 2020–2024).
What is the median household income in McCook County?
$83,852 for the county as a whole. Its ZIP codes range from $64,375 (57043) to $94,375 (57012).
Which McCook County ZIP code has the highest median household income?
57012, at $94,375, among ZIP codes with at least 1,000 residents.
How many carrier routes and mailboxes are in McCook County?
For the 5 of 9 ZIP codes in EDDM2GO's stored route library: 8 carrier routes reaching 1,677 residential and 45 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.