{
  "zip": "51230",
  "type": "standard",
  "type_source": "inferred",
  "city": "Alvord",
  "other_place_names": [],
  "state": "IA",
  "state_name": "Iowa",
  "county": {
    "fips": "19119",
    "name": "Lyon County",
    "short_name": "Lyon"
  },
  "counties": [
    {
      "county_fips": "19119",
      "name": "Lyon County",
      "short_name": "Lyon",
      "weight": 1,
      "basis": "land_area"
    }
  ],
  "location": {
    "lat": 43.356197,
    "lng": -96.322121,
    "source": "gazetteer_internal_point",
    "timezone": "America/Chicago"
  },
  "is_zcta": true,
  "parent_zcta": null,
  "metro": null,
  "demographics": {
    "population": 478,
    "households": 185,
    "housing_units": 207,
    "median_age": 51.2,
    "median_household_income": 75625,
    "median_home_value": 190800,
    "median_rent": null,
    "pct_bachelors_plus": 19.6,
    "mean_commute_min": 26.8,
    "density_per_sqmi": 20.3
  },
  "business": {
    "establishments": 14,
    "employees": 29,
    "annual_payroll_thousands": 1368
  },
  "tax": {
    "irs_returns": 230,
    "irs_agi_thousands": 21274
  },
  "area": {
    "land_sqmi": 23.551,
    "water_sqmi": 0
  },
  "nearest_zips": [
    {
      "zip": "51242",
      "miles": 5.3,
      "city": "Lester",
      "state": "IA"
    },
    {
      "zip": "51235",
      "miles": 6.8,
      "city": "Doon",
      "state": "IA"
    },
    {
      "zip": "51240",
      "miles": 7.6,
      "city": "Inwood",
      "state": "IA"
    },
    {
      "zip": "51246",
      "miles": 9.4,
      "city": "Rock Rapids",
      "state": "IA"
    },
    {
      "zip": "51241",
      "miles": 9.6,
      "city": "Larchwood",
      "state": "IA"
    },
    {
      "zip": "51247",
      "miles": 11.3,
      "city": "Rock Valley",
      "state": "IA"
    },
    {
      "zip": "56173",
      "miles": 12.3,
      "city": "Steen",
      "state": "MN"
    },
    {
      "zip": "56138",
      "miles": 12.8,
      "city": "Hills",
      "state": "MN"
    },
    {
      "zip": "51239",
      "miles": 13.7,
      "city": "Hull",
      "state": "IA"
    },
    {
      "zip": "57027",
      "miles": 15.1,
      "city": "Fairview",
      "state": "SD"
    }
  ],
  "release": "2026-10-12",
  "attribution": {
    "source": "zipcodes.pro",
    "url": "https://zipcodes.pro/zip/51230",
    "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."
  }
}