{
  "zip": "51351",
  "type": "standard",
  "type_source": "inferred",
  "city": "Milford",
  "other_place_names": [
    "West Okoboji",
    "Wahpeton",
    "Arnolds Park"
  ],
  "state": "IA",
  "state_name": "Iowa",
  "county": {
    "fips": "19059",
    "name": "Dickinson County",
    "short_name": "Dickinson"
  },
  "counties": [
    {
      "county_fips": "19059",
      "name": "Dickinson County",
      "short_name": "Dickinson",
      "weight": 1,
      "basis": "land_area"
    }
  ],
  "location": {
    "lat": 43.315064,
    "lng": -95.183646,
    "source": "gazetteer_internal_point",
    "timezone": "America/Chicago"
  },
  "is_zcta": true,
  "parent_zcta": null,
  "metro": {
    "cbsa_code": "44020",
    "name": "Spirit Lake, IA",
    "type": "micro",
    "csa_code": "517",
    "csa_name": "Spencer-Spirit Lake, IA"
  },
  "demographics": {
    "population": 4988,
    "households": 2354,
    "housing_units": 3203,
    "median_age": 48.2,
    "median_household_income": 73824,
    "median_home_value": 273100,
    "median_rent": 906,
    "pct_bachelors_plus": 29.3,
    "mean_commute_min": 18.7,
    "density_per_sqmi": 46.2
  },
  "business": {
    "establishments": 166,
    "employees": 1291,
    "annual_payroll_thousands": 59295
  },
  "tax": {
    "irs_returns": 2340,
    "irs_agi_thousands": 207202
  },
  "area": {
    "land_sqmi": 107.995,
    "water_sqmi": 3.175
  },
  "nearest_zips": [
    {
      "zip": "51331",
      "miles": 4.1,
      "city": "Arnolds Park",
      "state": "IA"
    },
    {
      "zip": "51340",
      "miles": 5.3,
      "city": "Fostoria",
      "state": "IA"
    },
    {
      "zip": "51355",
      "miles": 5.5,
      "city": "Okoboji",
      "state": "IA"
    },
    {
      "zip": "51360",
      "miles": 9.6,
      "city": "Spirit Lake",
      "state": "IA"
    },
    {
      "zip": "51347",
      "miles": 10,
      "city": "Lake Park",
      "state": "IA"
    },
    {
      "zip": "51338",
      "miles": 10.2,
      "city": "Everly",
      "state": "IA"
    },
    {
      "zip": "51364",
      "miles": 11.2,
      "city": "Terril",
      "state": "IA"
    },
    {
      "zip": "51301",
      "miles": 11.3,
      "city": "Spencer",
      "state": "IA"
    },
    {
      "zip": "51363",
      "miles": 14.4,
      "city": "Superior",
      "state": "IA"
    },
    {
      "zip": "51345",
      "miles": 14.7,
      "city": "Harris",
      "state": "IA"
    }
  ],
  "release": "2026-10-12",
  "attribution": {
    "source": "zipcodes.pro",
    "url": "https://zipcodes.pro/zip/51351",
    "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."
  }
}