{
  "zip": "51031",
  "type": "standard",
  "type_source": "inferred",
  "city": "Le Mars",
  "other_place_names": [
    "Struble",
    "Craig",
    "Oyens"
  ],
  "state": "IA",
  "state_name": "Iowa",
  "county": {
    "fips": "19149",
    "name": "Plymouth County",
    "short_name": "Plymouth"
  },
  "counties": [
    {
      "county_fips": "19149",
      "name": "Plymouth County",
      "short_name": "Plymouth",
      "weight": 0.9892,
      "basis": "land_area"
    },
    {
      "county_fips": "19167",
      "name": "Sioux County",
      "short_name": "Sioux",
      "weight": 0.0108,
      "basis": "land_area"
    }
  ],
  "location": {
    "lat": 42.80324,
    "lng": -96.186428,
    "source": "gazetteer_internal_point",
    "timezone": "America/Chicago"
  },
  "is_zcta": true,
  "parent_zcta": null,
  "metro": {
    "cbsa_code": "30180",
    "name": "Le Mars, IA",
    "type": "micro",
    "csa_code": "512",
    "csa_name": "Sioux City-Le Mars, IA-NE-SD"
  },
  "demographics": {
    "population": 12808,
    "households": 5217,
    "housing_units": 5461,
    "median_age": 39,
    "median_household_income": 76525,
    "median_home_value": 222800,
    "median_rent": 928,
    "pct_bachelors_plus": 21.9,
    "mean_commute_min": 16.8,
    "density_per_sqmi": 54.7
  },
  "business": {
    "establishments": 383,
    "employees": 8591,
    "annual_payroll_thousands": 629571
  },
  "tax": {
    "irs_returns": 6220,
    "irs_agi_thousands": 574574
  },
  "area": {
    "land_sqmi": 234.143,
    "water_sqmi": 0.009
  },
  "nearest_zips": [
    {
      "zip": "51008",
      "miles": 4.1,
      "city": "Brunsville",
      "state": "IA"
    },
    {
      "zip": "51045",
      "miles": 6.6,
      "city": "Oyens",
      "state": "IA"
    },
    {
      "zip": "51038",
      "miles": 9.6,
      "city": "Merrill",
      "state": "IA"
    },
    {
      "zip": "51036",
      "miles": 11.5,
      "city": "Maurice",
      "state": "IA"
    },
    {
      "zip": "51050",
      "miles": 12.1,
      "city": "Remsen",
      "state": "IA"
    },
    {
      "zip": "51024",
      "miles": 12.8,
      "city": "Hinton",
      "state": "IA"
    },
    {
      "zip": "51027",
      "miles": 13.3,
      "city": "Ireton",
      "state": "IA"
    },
    {
      "zip": "51041",
      "miles": 16.3,
      "city": "Orange City",
      "state": "IA"
    },
    {
      "zip": "51003",
      "miles": 16.4,
      "city": "Alton",
      "state": "IA"
    },
    {
      "zip": "51028",
      "miles": 17.5,
      "city": "Kingsley",
      "state": "IA"
    }
  ],
  "release": "2026-10-12",
  "attribution": {
    "source": "zipcodes.pro",
    "url": "https://zipcodes.pro/zip/51031",
    "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."
  }
}