{
  "zip": "51431",
  "type": "standard",
  "type_source": "inferred",
  "city": "Arthur",
  "other_place_names": [],
  "state": "IA",
  "state_name": "Iowa",
  "county": {
    "fips": "19093",
    "name": "Ida County",
    "short_name": "Ida"
  },
  "counties": [
    {
      "county_fips": "19093",
      "name": "Ida County",
      "short_name": "Ida",
      "weight": 0.8903,
      "basis": "land_area"
    },
    {
      "county_fips": "19161",
      "name": "Sac County",
      "short_name": "Sac",
      "weight": 0.1097,
      "basis": "land_area"
    }
  ],
  "location": {
    "lat": 42.344418,
    "lng": -95.351451,
    "source": "gazetteer_internal_point",
    "timezone": "America/Chicago"
  },
  "is_zcta": true,
  "parent_zcta": null,
  "metro": null,
  "demographics": {
    "population": 430,
    "households": 187,
    "housing_units": 197,
    "median_age": 38.2,
    "median_household_income": 54258,
    "median_home_value": 80000,
    "median_rent": 676,
    "pct_bachelors_plus": 20,
    "mean_commute_min": 21.6,
    "density_per_sqmi": 11.4
  },
  "business": {
    "establishments": 11,
    "employees": 79,
    "annual_payroll_thousands": 4875
  },
  "tax": {
    "irs_returns": 180,
    "irs_agi_thousands": 12339
  },
  "area": {
    "land_sqmi": 37.858,
    "water_sqmi": 0
  },
  "nearest_zips": [
    {
      "zip": "51445",
      "miles": 6,
      "city": "Ida Grove",
      "state": "IA"
    },
    {
      "zip": "51458",
      "miles": 6.1,
      "city": "Odebolt",
      "state": "IA"
    },
    {
      "zip": "51448",
      "miles": 9.8,
      "city": "Kiron",
      "state": "IA"
    },
    {
      "zip": "51053",
      "miles": 10.9,
      "city": "Schaller",
      "state": "IA"
    },
    {
      "zip": "50535",
      "miles": 12.1,
      "city": "Early",
      "state": "IA"
    },
    {
      "zip": "51020",
      "miles": 12.2,
      "city": "Galva",
      "state": "IA"
    },
    {
      "zip": "51461",
      "miles": 13.3,
      "city": "Schleswig",
      "state": "IA"
    },
    {
      "zip": "51006",
      "miles": 13.5,
      "city": "Battle Creek",
      "state": "IA"
    },
    {
      "zip": "51466",
      "miles": 14.5,
      "city": "Wall Lake",
      "state": "IA"
    },
    {
      "zip": "51025",
      "miles": 14.9,
      "city": "Holstein",
      "state": "IA"
    }
  ],
  "release": "2026-10-12",
  "attribution": {
    "source": "zipcodes.pro",
    "url": "https://zipcodes.pro/zip/51431",
    "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."
  }
}