{
  "zip": "51109",
  "type": "standard",
  "type_source": "inferred",
  "city": "Sioux City",
  "other_place_names": [],
  "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": 0.8972,
      "basis": "land_area"
    },
    {
      "county_fips": "19193",
      "name": "Woodbury County",
      "short_name": "Woodbury",
      "weight": 0.1028,
      "basis": "land_area"
    }
  ],
  "location": {
    "lat": 42.610335,
    "lng": -96.469977,
    "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": 3606,
    "households": 1447,
    "housing_units": 1488,
    "median_age": 39.4,
    "median_household_income": 79034,
    "median_home_value": 130900,
    "median_rent": 627,
    "pct_bachelors_plus": 3.4,
    "mean_commute_min": 16.4,
    "density_per_sqmi": 204.8
  },
  "business": {
    "establishments": 57,
    "employees": 349,
    "annual_payroll_thousands": 9468
  },
  "tax": {
    "irs_returns": 1440,
    "irs_agi_thousands": 80193
  },
  "area": {
    "land_sqmi": 17.609,
    "water_sqmi": 0.837
  },
  "nearest_zips": [
    {
      "zip": "57038",
      "miles": 5.9,
      "city": "Jefferson",
      "state": "SD"
    },
    {
      "zip": "51104",
      "miles": 6.2,
      "city": "Sioux City",
      "state": "IA"
    },
    {
      "zip": "57049",
      "miles": 6.3,
      "city": "North Sioux City",
      "state": "SD"
    },
    {
      "zip": "51103",
      "miles": 6.3,
      "city": "Sioux City",
      "state": "IA"
    },
    {
      "zip": "51108",
      "miles": 6.7,
      "city": "Sioux City",
      "state": "IA"
    },
    {
      "zip": "51062",
      "miles": 6.9,
      "city": "Westfield",
      "state": "IA"
    },
    {
      "zip": "51105",
      "miles": 8.8,
      "city": "Sioux City",
      "state": "IA"
    },
    {
      "zip": "51101",
      "miles": 8.9,
      "city": "Sioux City",
      "state": "IA"
    },
    {
      "zip": "51038",
      "miles": 10.1,
      "city": "Merrill",
      "state": "IA"
    },
    {
      "zip": "68776",
      "miles": 10.5,
      "city": "South Sioux City",
      "state": "NE"
    }
  ],
  "release": "2026-10-12",
  "attribution": {
    "source": "zipcodes.pro",
    "url": "https://zipcodes.pro/zip/51109",
    "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."
  }
}