{
  "zip": "57720",
  "type": "standard",
  "type_source": "inferred",
  "city": "Buffalo",
  "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": 45.537168,
    "lng": -103.586067,
    "source": "gazetteer_internal_point",
    "timezone": "America/Denver"
  },
  "is_zcta": true,
  "parent_zcta": null,
  "metro": null,
  "demographics": {
    "population": 518,
    "households": 264,
    "housing_units": 378,
    "median_age": 52.3,
    "median_household_income": 79091,
    "median_home_value": 157000,
    "median_rent": 586,
    "pct_bachelors_plus": 25,
    "mean_commute_min": 14,
    "density_per_sqmi": 0.4
  },
  "business": {
    "establishments": 35,
    "employees": 318,
    "annual_payroll_thousands": 21715
  },
  "tax": {
    "irs_returns": 310,
    "irs_agi_thousands": 24949
  },
  "area": {
    "land_sqmi": 1296.162,
    "water_sqmi": 4.194
  },
  "nearest_zips": [
    {
      "zip": "57724",
      "miles": 20.2,
      "city": "Camp Crook",
      "state": "SD"
    },
    {
      "zip": "57776",
      "miles": 21.1,
      "city": "Redig",
      "state": "SD"
    },
    {
      "zip": "57755",
      "miles": 25.6,
      "city": "Ludlow",
      "state": "SD"
    },
    {
      "zip": "57651",
      "miles": 27,
      "city": "Reva",
      "state": "SD"
    },
    {
      "zip": "59319",
      "miles": 29.4,
      "city": "Capitol",
      "state": "MT"
    },
    {
      "zip": "57650",
      "miles": 33.5,
      "city": "Ralph",
      "state": "SD"
    },
    {
      "zip": "57649",
      "miles": 35.8,
      "city": "Prairie City",
      "state": "SD"
    },
    {
      "zip": "58623",
      "miles": 43.8,
      "city": "Bowman",
      "state": "ND"
    },
    {
      "zip": "58653",
      "miles": 44.1,
      "city": "Scranton",
      "state": "ND"
    },
    {
      "zip": "57717",
      "miles": 44.3,
      "city": "Belle Fourche",
      "state": "SD"
    }
  ],
  "release": "2026-10-12",
  "attribution": {
    "source": "zipcodes.pro",
    "url": "https://zipcodes.pro/zip/57720",
    "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."
  }
}