{
  "zip": "60548",
  "type": "standard",
  "type_source": "inferred",
  "city": "Sandwich",
  "other_place_names": [
    "Lake Holiday",
    "Somonauk"
  ],
  "state": "IL",
  "state_name": "Illinois",
  "county": {
    "fips": "17037",
    "name": "DeKalb County",
    "short_name": "DeKalb"
  },
  "counties": [
    {
      "county_fips": "17037",
      "name": "DeKalb County",
      "short_name": "DeKalb",
      "weight": 0.5413,
      "basis": "land_area"
    },
    {
      "county_fips": "17099",
      "name": "LaSalle County",
      "short_name": "LaSalle",
      "weight": 0.3391,
      "basis": "land_area"
    },
    {
      "county_fips": "17093",
      "name": "Kendall County",
      "short_name": "Kendall",
      "weight": 0.1196,
      "basis": "land_area"
    }
  ],
  "location": {
    "lat": 41.648667,
    "lng": -88.634691,
    "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": 11721,
    "households": 4548,
    "housing_units": 4842,
    "median_age": 40.8,
    "median_household_income": 82957,
    "median_home_value": 262100,
    "median_rent": 1045,
    "pct_bachelors_plus": 21.6,
    "mean_commute_min": 33.6,
    "density_per_sqmi": 283.3
  },
  "business": {
    "establishments": 244,
    "employees": 2448,
    "annual_payroll_thousands": 117146
  },
  "tax": {
    "irs_returns": 5900,
    "irs_agi_thousands": 424707
  },
  "area": {
    "land_sqmi": 41.376,
    "water_sqmi": 0.378
  },
  "nearest_zips": [
    {
      "zip": "60552",
      "miles": 3.9,
      "city": "Somonauk",
      "state": "IL"
    },
    {
      "zip": "60536",
      "miles": 5.5,
      "city": "Millbrook",
      "state": "IL"
    },
    {
      "zip": "60545",
      "miles": 5.5,
      "city": "Plano",
      "state": "IL"
    },
    {
      "zip": "60537",
      "miles": 6.3,
      "city": "Millington",
      "state": "IL"
    },
    {
      "zip": "60531",
      "miles": 8.1,
      "city": "Leland",
      "state": "IL"
    },
    {
      "zip": "60511",
      "miles": 8.7,
      "city": "Big Rock",
      "state": "IL"
    },
    {
      "zip": "60551",
      "miles": 9,
      "city": "Sheridan",
      "state": "IL"
    },
    {
      "zip": "60520",
      "miles": 9.7,
      "city": "Hinckley",
      "state": "IL"
    },
    {
      "zip": "60556",
      "miles": 10.6,
      "city": "Waterman",
      "state": "IL"
    },
    {
      "zip": "60512",
      "miles": 10.7,
      "city": "Bristol",
      "state": "IL"
    }
  ],
  "release": "2026-10-12",
  "attribution": {
    "source": "zipcodes.pro",
    "url": "https://zipcodes.pro/zip/60548",
    "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."
  }
}