{
  "zip": "57339",
  "type": "standard",
  "type_source": "inferred",
  "city": "Fort Thompson",
  "other_place_names": [],
  "state": "SD",
  "state_name": "South Dakota",
  "county": {
    "fips": "46017",
    "name": "Buffalo County",
    "short_name": "Buffalo"
  },
  "counties": [
    {
      "county_fips": "46017",
      "name": "Buffalo County",
      "short_name": "Buffalo",
      "weight": 1,
      "basis": "land_area"
    }
  ],
  "location": {
    "lat": 44.126676,
    "lng": -99.463922,
    "source": "gazetteer_internal_point",
    "timezone": "America/Chicago"
  },
  "is_zcta": true,
  "parent_zcta": null,
  "metro": null,
  "demographics": {
    "population": 1390,
    "households": 372,
    "housing_units": 427,
    "median_age": 21.3,
    "median_household_income": 46136,
    "median_home_value": 121700,
    "median_rent": 605,
    "pct_bachelors_plus": 7.2,
    "mean_commute_min": 10.8,
    "density_per_sqmi": 25.6
  },
  "business": {
    "establishments": 9,
    "employees": 129,
    "annual_payroll_thousands": 3838
  },
  "tax": {
    "irs_returns": 460,
    "irs_agi_thousands": 15292
  },
  "area": {
    "land_sqmi": 54.226,
    "water_sqmi": 10.518
  },
  "nearest_zips": [
    {
      "zip": "57548",
      "miles": 6.8,
      "city": "Lower Brule",
      "state": "SD"
    },
    {
      "zip": "57346",
      "miles": 8.5,
      "city": "Stephan",
      "state": "SD"
    },
    {
      "zip": "57341",
      "miles": 17.3,
      "city": "Gann Valley",
      "state": "SD"
    },
    {
      "zip": "57569",
      "miles": 19,
      "city": "Reliance",
      "state": "SD"
    },
    {
      "zip": "57325",
      "miles": 21.5,
      "city": "Chamberlain",
      "state": "SD"
    },
    {
      "zip": "57365",
      "miles": 21.9,
      "city": "Oacoma",
      "state": "SD"
    },
    {
      "zip": "57326",
      "miles": 22.8,
      "city": "Chamberlain",
      "state": "SD"
    },
    {
      "zip": "57540",
      "miles": 24.2,
      "city": "Holabird",
      "state": "SD"
    },
    {
      "zip": "57371",
      "miles": 24.6,
      "city": "Ree Heights",
      "state": "SD"
    },
    {
      "zip": "57544",
      "miles": 25.3,
      "city": "Kennebec",
      "state": "SD"
    }
  ],
  "release": "2026-10-12",
  "attribution": {
    "source": "zipcodes.pro",
    "url": "https://zipcodes.pro/zip/57339",
    "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."
  }
}