{
  "zip": "51009",
  "type": "standard",
  "type_source": "inferred",
  "city": "Calumet",
  "other_place_names": [],
  "state": "IA",
  "state_name": "Iowa",
  "county": {
    "fips": "19141",
    "name": "O'Brien County",
    "short_name": "O'Brien"
  },
  "counties": [
    {
      "county_fips": "19141",
      "name": "O'Brien County",
      "short_name": "O'Brien",
      "weight": 1,
      "basis": "land_area"
    }
  ],
  "location": {
    "lat": 42.945024,
    "lng": -95.551435,
    "source": "gazetteer_internal_point",
    "timezone": "America/Chicago"
  },
  "is_zcta": true,
  "parent_zcta": null,
  "metro": null,
  "demographics": {
    "population": 113,
    "households": 50,
    "housing_units": 57,
    "median_age": 38.3,
    "median_household_income": 58750,
    "median_home_value": 83300,
    "median_rent": null,
    "pct_bachelors_plus": 21.1,
    "mean_commute_min": 20,
    "density_per_sqmi": 424.8
  },
  "business": {
    "establishments": 5,
    "employees": 28,
    "annual_payroll_thousands": 2082
  },
  "tax": {
    "irs_returns": null,
    "irs_agi_thousands": null
  },
  "area": {
    "land_sqmi": 0.266,
    "water_sqmi": 0
  },
  "nearest_zips": [
    {
      "zip": "51029",
      "miles": 4.1,
      "city": "Larrabee",
      "state": "IA"
    },
    {
      "zip": "51058",
      "miles": 4.9,
      "city": "Sutherland",
      "state": "IA"
    },
    {
      "zip": "51046",
      "miles": 6.5,
      "city": "Paullina",
      "state": "IA"
    },
    {
      "zip": "51047",
      "miles": 9.2,
      "city": "Peterson",
      "state": "IA"
    },
    {
      "zip": "51037",
      "miles": 9.5,
      "city": "Meriden",
      "state": "IA"
    },
    {
      "zip": "51245",
      "miles": 9.5,
      "city": "Primghar",
      "state": "IA"
    },
    {
      "zip": "51014",
      "miles": 13.4,
      "city": "Cleghorn",
      "state": "IA"
    },
    {
      "zip": "51012",
      "miles": 13.8,
      "city": "Cherokee",
      "state": "IA"
    },
    {
      "zip": "51231",
      "miles": 14.7,
      "city": "Archer",
      "state": "IA"
    },
    {
      "zip": "51022",
      "miles": 15.1,
      "city": "Granville",
      "state": "IA"
    }
  ],
  "release": "2026-10-12",
  "attribution": {
    "source": "zipcodes.pro",
    "url": "https://zipcodes.pro/zip/51009",
    "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."
  }
}