{
  "zip": "57755",
  "type": "standard",
  "type_source": "inferred",
  "city": "Ludlow",
  "other_place_names": [],
  "state": "SD",
  "state_name": "South Dakota",
  "county": {
    "fips": "46063",
    "name": "Harding County",
    "short_name": "Harding"
  },
  "counties": [
    {
      "county_fips": "46063",
      "name": "Harding County",
      "short_name": "Harding",
      "weight": 1,
      "basis": "land_area"
    }
  ],
  "location": {
    "lat": 45.868326,
    "lng": -103.347178,
    "source": "gazetteer_internal_point",
    "timezone": "America/Denver"
  },
  "is_zcta": true,
  "parent_zcta": null,
  "metro": null,
  "demographics": {
    "population": 101,
    "households": 45,
    "housing_units": 57,
    "median_age": 40.8,
    "median_household_income": 68125,
    "median_home_value": 164100,
    "median_rent": null,
    "pct_bachelors_plus": 39,
    "mean_commute_min": 27.7,
    "density_per_sqmi": 0.4
  },
  "business": {
    "establishments": 3,
    "employees": 16,
    "annual_payroll_thousands": 1341
  },
  "tax": {
    "irs_returns": null,
    "irs_agi_thousands": null
  },
  "area": {
    "land_sqmi": 254.667,
    "water_sqmi": 0.3
  },
  "nearest_zips": [
    {
      "zip": "57650",
      "miles": 15.3,
      "city": "Ralph",
      "state": "SD"
    },
    {
      "zip": "58653",
      "miles": 18.6,
      "city": "Scranton",
      "state": "ND"
    },
    {
      "zip": "58623",
      "miles": 20.5,
      "city": "Bowman",
      "state": "ND"
    },
    {
      "zip": "57720",
      "miles": 25.6,
      "city": "Buffalo",
      "state": "SD"
    },
    {
      "zip": "58649",
      "miles": 28.4,
      "city": "Reeder",
      "state": "ND"
    },
    {
      "zip": "57651",
      "miles": 31,
      "city": "Reva",
      "state": "SD"
    },
    {
      "zip": "57640",
      "miles": 31.7,
      "city": "Lodgepole",
      "state": "SD"
    },
    {
      "zip": "58651",
      "miles": 33,
      "city": "Rhame",
      "state": "ND"
    },
    {
      "zip": "57649",
      "miles": 35.6,
      "city": "Prairie City",
      "state": "SD"
    },
    {
      "zip": "58639",
      "miles": 36.2,
      "city": "Hettinger",
      "state": "ND"
    }
  ],
  "release": "2026-10-12",
  "attribution": {
    "source": "zipcodes.pro",
    "url": "https://zipcodes.pro/zip/57755",
    "sources_url": "https://zipcodes.pro/sources",
    "license": "Facts derived from US public-domain data (Census, IRS) and GeoNames (CC BY 4.0). Attribution appreciated: zipcodes.pro",
    "note": "A null value means the source did not publish that figure for this ZIP code. It does not mean zero."
  }
}