{
  "zip": "83251",
  "type": "standard",
  "type_source": "inferred",
  "city": "Mackay",
  "other_place_names": [
    "Lost River"
  ],
  "state": "ID",
  "state_name": "Idaho",
  "county": {
    "fips": "16037",
    "name": "Custer County",
    "short_name": "Custer"
  },
  "counties": [
    {
      "county_fips": "16037",
      "name": "Custer County",
      "short_name": "Custer",
      "weight": 1,
      "basis": "land_area"
    }
  ],
  "location": {
    "lat": 43.944697,
    "lng": -113.944659,
    "source": "gazetteer_internal_point",
    "timezone": "America/Boise"
  },
  "is_zcta": true,
  "parent_zcta": null,
  "metro": null,
  "demographics": {
    "population": 1443,
    "households": 603,
    "housing_units": 942,
    "median_age": 60.6,
    "median_household_income": 73482,
    "median_home_value": 366900,
    "median_rent": null,
    "pct_bachelors_plus": 31.8,
    "mean_commute_min": 20.7,
    "density_per_sqmi": 1.3
  },
  "business": {
    "establishments": 41,
    "employees": 215,
    "annual_payroll_thousands": 7289
  },
  "tax": {
    "irs_returns": 560,
    "irs_agi_thousands": 37860
  },
  "area": {
    "land_sqmi": 1124.153,
    "water_sqmi": 2.965
  },
  "nearest_zips": [
    {
      "zip": "83353",
      "miles": 25.8,
      "city": "Sun Valley",
      "state": "ID"
    },
    {
      "zip": "83354",
      "miles": 26.7,
      "city": "Sun Valley",
      "state": "ID"
    },
    {
      "zip": "83255",
      "miles": 29.1,
      "city": "Moore",
      "state": "ID"
    },
    {
      "zip": "83333",
      "miles": 29.7,
      "city": "Hailey",
      "state": "ID"
    },
    {
      "zip": "83226",
      "miles": 29.7,
      "city": "Challis",
      "state": "ID"
    },
    {
      "zip": "83227",
      "miles": 31.1,
      "city": "Clayton",
      "state": "ID"
    },
    {
      "zip": "83340",
      "miles": 34.9,
      "city": "Ketchum",
      "state": "ID"
    },
    {
      "zip": "83320",
      "miles": 37.4,
      "city": "Carey",
      "state": "ID"
    },
    {
      "zip": "83253",
      "miles": 41.9,
      "city": "May",
      "state": "ID"
    },
    {
      "zip": "83313",
      "miles": 43.1,
      "city": "Bellevue",
      "state": "ID"
    }
  ],
  "release": "2026-10-12",
  "attribution": {
    "source": "zipcodes.pro",
    "url": "https://zipcodes.pro/zip/83251",
    "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."
  }
}