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Zip Code 57755 — Ludlow, SD

ZIP Code 57755 is associated with Ludlow, SD, in Harding County. The listed population estimate is 101; estimated density is 0.2 people per square mile. Among records with population estimates, it ranks #4 of 5 in Harding County and #347 of 372 in SD.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (45.837630, -103.357840)

Data MetricLocal Statistic
Postal / Zip Code57755
Primary CityLudlow
State / ProvinceSD
CountyHarding
Total Population101
Population Density0.2 people/sq mi
TimezoneAmerica/Denver

How 57755 Compares

MetricZIP 57755Harding County recordsSD records
Population estimate101994 (sum)906,188 (sum)
Population Density0.2 /sq mi----
County population rank#4 of 5----
State population rank#347 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 57650Ralph15.8 mi17
ZIP 57720Buffalo23.2 mi518
ZIP 57651Reva27.9 mi191
ZIP 57640Lodgepole31.9 mi41
ZIP 57649Prairie City33.9 mi273

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 →