{
  "zip": "51023",
  "type": "standard",
  "type_source": "inferred",
  "city": "Hawarden",
  "other_place_names": [
    "Chatsworth"
  ],
  "state": "IA",
  "state_name": "Iowa",
  "county": {
    "fips": "19167",
    "name": "Sioux County",
    "short_name": "Sioux"
  },
  "counties": [
    {
      "county_fips": "19167",
      "name": "Sioux County",
      "short_name": "Sioux",
      "weight": 0.702,
      "basis": "land_area"
    },
    {
      "county_fips": "46127",
      "name": "Union County",
      "short_name": "Union",
      "weight": 0.298,
      "basis": "land_area"
    }
  ],
  "location": {
    "lat": 43.00674,
    "lng": -96.463475,
    "source": "gazetteer_internal_point",
    "timezone": "America/Chicago"
  },
  "is_zcta": true,
  "parent_zcta": null,
  "metro": null,
  "demographics": {
    "population": 3473,
    "households": 1236,
    "housing_units": 1347,
    "median_age": 36.9,
    "median_household_income": 80357,
    "median_home_value": 173300,
    "median_rent": 926,
    "pct_bachelors_plus": 21.3,
    "mean_commute_min": 16,
    "density_per_sqmi": 29
  },
  "business": {
    "establishments": 88,
    "employees": 920,
    "annual_payroll_thousands": 36474
  },
  "tax": {
    "irs_returns": 1350,
    "irs_agi_thousands": 87756
  },
  "area": {
    "land_sqmi": 119.859,
    "water_sqmi": 0.827
  },
  "nearest_zips": [
    {
      "zip": "51011",
      "miles": 6.8,
      "city": "Chatsworth",
      "state": "IA"
    },
    {
      "zip": "51027",
      "miles": 7.4,
      "city": "Ireton",
      "state": "IA"
    },
    {
      "zip": "57034",
      "miles": 8.7,
      "city": "Hudson",
      "state": "SD"
    },
    {
      "zip": "57001",
      "miles": 9.8,
      "city": "Alcester",
      "state": "SD"
    },
    {
      "zip": "51001",
      "miles": 12.2,
      "city": "Akron",
      "state": "IA"
    },
    {
      "zip": "57027",
      "miles": 13.1,
      "city": "Fairview",
      "state": "SD"
    },
    {
      "zip": "51036",
      "miles": 14.1,
      "city": "Maurice",
      "state": "IA"
    },
    {
      "zip": "51250",
      "miles": 14.3,
      "city": "Sioux Center",
      "state": "IA"
    },
    {
      "zip": "51247",
      "miles": 14.4,
      "city": "Rock Valley",
      "state": "IA"
    },
    {
      "zip": "51008",
      "miles": 16.8,
      "city": "Brunsville",
      "state": "IA"
    }
  ],
  "release": "2026-10-12",
  "attribution": {
    "source": "zipcodes.pro",
    "url": "https://zipcodes.pro/zip/51023",
    "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."
  }
}