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Zip Code 57457 — Long Lake, SD

ZIP Code 57457 is associated with Long Lake, SD, in McPherson County. The listed population estimate is 108; estimated density is 0.3 people per square mile. Among records with population estimates, it ranks #4 of 4 in McPherson County and #345 of 372 in SD.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (45.872810, -99.158120)

Data MetricLocal Statistic
Postal / Zip Code57457
Primary CityLong Lake
State / ProvinceSD
CountyMcPherson
Total Population108
Population Density0.3 people/sq mi
TimezoneAmerica/Chicago

How 57457 Compares

MetricZIP 57457McPherson County recordsSD records
Population estimate1082,256 (sum)906,188 (sum)
Population Density0.3 /sq mi----
County population rank#4 of 4----
State population rank#345 of 372----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in SD

ZIP CodeCityDistancePopulation estimate
ZIP 57456Leola13.1 mi670
ZIP 57448Hosmer22.0 mi404
ZIP 57437Eureka23.0 mi1,074
ZIP 57481Westport28.1 mi271
ZIP 57441Frederick31.2 mi670

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 →