{
  "zip": "59531",
  "type": "standard",
  "type_source": "inferred",
  "city": "Joplin",
  "other_place_names": [],
  "state": "MT",
  "state_name": "Montana",
  "county": {
    "fips": "30051",
    "name": "Liberty County",
    "short_name": "Liberty"
  },
  "counties": [
    {
      "county_fips": "30051",
      "name": "Liberty County",
      "short_name": "Liberty",
      "weight": 0.7297,
      "basis": "land_area"
    },
    {
      "county_fips": "30041",
      "name": "Hill County",
      "short_name": "Hill",
      "weight": 0.2703,
      "basis": "land_area"
    }
  ],
  "location": {
    "lat": 48.776638,
    "lng": -110.794634,
    "source": "gazetteer_internal_point",
    "timezone": "America/Denver"
  },
  "is_zcta": true,
  "parent_zcta": null,
  "metro": null,
  "demographics": {
    "population": 351,
    "households": 129,
    "housing_units": 175,
    "median_age": 32.5,
    "median_household_income": 67891,
    "median_home_value": 110000,
    "median_rent": null,
    "pct_bachelors_plus": 21,
    "mean_commute_min": 21.2,
    "density_per_sqmi": 1.3
  },
  "business": {
    "establishments": 11,
    "employees": 34,
    "annual_payroll_thousands": 1519
  },
  "tax": {
    "irs_returns": 130,
    "irs_agi_thousands": 8087
  },
  "area": {
    "land_sqmi": 267.687,
    "water_sqmi": 0.154
  },
  "nearest_zips": [
    {
      "zip": "59530",
      "miles": 12.9,
      "city": "Inverness",
      "state": "MT"
    },
    {
      "zip": "59540",
      "miles": 15.9,
      "city": "Rudyard",
      "state": "MT"
    },
    {
      "zip": "59522",
      "miles": 17.3,
      "city": "Chester",
      "state": "MT"
    },
    {
      "zip": "59528",
      "miles": 19.8,
      "city": "Hingham",
      "state": "MT"
    },
    {
      "zip": "59545",
      "miles": 22.3,
      "city": "Whitlash",
      "state": "MT"
    },
    {
      "zip": "59525",
      "miles": 26,
      "city": "Gildford",
      "state": "MT"
    },
    {
      "zip": "59444",
      "miles": 28.1,
      "city": "Galata",
      "state": "MT"
    },
    {
      "zip": "59461",
      "miles": 28.4,
      "city": "Lothair",
      "state": "MT"
    },
    {
      "zip": "59532",
      "miles": 34.9,
      "city": "Kremlin",
      "state": "MT"
    },
    {
      "zip": "59484",
      "miles": 36.1,
      "city": "Sweet Grass",
      "state": "MT"
    }
  ],
  "release": "2026-10-12",
  "attribution": {
    "source": "zipcodes.pro",
    "url": "https://zipcodes.pro/zip/59531",
    "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."
  }
}