{
  "zip": "60031",
  "type": "standard",
  "type_source": "inferred",
  "city": "Gurnee",
  "other_place_names": [
    "Grandwood Park",
    "Gages Lake",
    "Wadsworth",
    "Waukegan",
    "Old Mill Creek",
    "Park City"
  ],
  "state": "IL",
  "state_name": "Illinois",
  "county": {
    "fips": "17097",
    "name": "Lake County",
    "short_name": "Lake"
  },
  "counties": [
    {
      "county_fips": "17097",
      "name": "Lake County",
      "short_name": "Lake",
      "weight": 1,
      "basis": "land_area"
    }
  ],
  "location": {
    "lat": 42.373189,
    "lng": -87.939664,
    "source": "gazetteer_internal_point",
    "timezone": "America/Chicago"
  },
  "is_zcta": true,
  "parent_zcta": null,
  "metro": {
    "cbsa_code": "16980",
    "name": "Chicago-Naperville-Elgin, IL-IN",
    "type": "metro",
    "csa_code": "176",
    "csa_name": "Chicago-Naperville, IL-IN-WI"
  },
  "demographics": {
    "population": 37107,
    "households": 14307,
    "housing_units": 14701,
    "median_age": 40.4,
    "median_household_income": 111034,
    "median_home_value": 335100,
    "median_rent": 1657,
    "pct_bachelors_plus": 56.2,
    "mean_commute_min": 28.9,
    "density_per_sqmi": 1950.9
  },
  "business": {
    "establishments": 1288,
    "employees": 20055,
    "annual_payroll_thousands": 994465
  },
  "tax": {
    "irs_returns": 19400,
    "irs_agi_thousands": 1958282
  },
  "area": {
    "land_sqmi": 19.02,
    "water_sqmi": 0.291
  },
  "nearest_zips": [
    {
      "zip": "60085",
      "miles": 4.2,
      "city": "Waukegan",
      "state": "IL"
    },
    {
      "zip": "60083",
      "miles": 4.4,
      "city": "Wadsworth",
      "state": "IL"
    },
    {
      "zip": "60087",
      "miles": 4.9,
      "city": "Waukegan",
      "state": "IL"
    },
    {
      "zip": "60079",
      "miles": 4.9,
      "city": "Waukegan",
      "state": "IL"
    },
    {
      "zip": "60064",
      "miles": 5.2,
      "city": "North Chicago",
      "state": "IL"
    },
    {
      "zip": "60048",
      "miles": 5.6,
      "city": "Libertyville",
      "state": "IL"
    },
    {
      "zip": "60030",
      "miles": 6.1,
      "city": "Grayslake",
      "state": "IL"
    },
    {
      "zip": "60088",
      "miles": 6.6,
      "city": "Great Lakes",
      "state": "IL"
    },
    {
      "zip": "60046",
      "miles": 7.1,
      "city": "Lake Villa",
      "state": "IL"
    },
    {
      "zip": "60099",
      "miles": 7.1,
      "city": "Zion",
      "state": "IL"
    }
  ],
  "release": "2026-10-12",
  "attribution": {
    "source": "zipcodes.pro",
    "url": "https://zipcodes.pro/zip/60031",
    "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."
  }
}