{
  "zip": "53563",
  "type": "standard",
  "type_source": "inferred",
  "city": "Milton",
  "other_place_names": [
    "Janesville",
    "Lake Koshkonong"
  ],
  "state": "WI",
  "state_name": "Wisconsin",
  "county": {
    "fips": "55105",
    "name": "Rock County",
    "short_name": "Rock"
  },
  "counties": [
    {
      "county_fips": "55105",
      "name": "Rock County",
      "short_name": "Rock",
      "weight": 0.9845,
      "basis": "land_area"
    },
    {
      "county_fips": "55055",
      "name": "Jefferson County",
      "short_name": "Jefferson",
      "weight": 0.0155,
      "basis": "land_area"
    }
  ],
  "location": {
    "lat": 42.781025,
    "lng": -88.933515,
    "source": "gazetteer_internal_point",
    "timezone": "America/Chicago"
  },
  "is_zcta": true,
  "parent_zcta": null,
  "metro": {
    "cbsa_code": "27500",
    "name": "Janesville-Beloit, WI",
    "type": "metro",
    "csa_code": "357",
    "csa_name": "Madison-Janesville-Beloit, WI"
  },
  "demographics": {
    "population": 11280,
    "households": 4632,
    "housing_units": 4858,
    "median_age": 42.5,
    "median_household_income": 89528,
    "median_home_value": 293800,
    "median_rent": 948,
    "pct_bachelors_plus": 29.4,
    "mean_commute_min": 27.5,
    "density_per_sqmi": 168.3
  },
  "business": {
    "establishments": 216,
    "employees": 2354,
    "annual_payroll_thousands": 129573
  },
  "tax": {
    "irs_returns": 6000,
    "irs_agi_thousands": 525053
  },
  "area": {
    "land_sqmi": 67.027,
    "water_sqmi": 2.24
  },
  "nearest_zips": [
    {
      "zip": "53547",
      "miles": 6.1,
      "city": "Janesville",
      "state": "WI"
    },
    {
      "zip": "53545",
      "miles": 6.2,
      "city": "Janesville",
      "state": "WI"
    },
    {
      "zip": "53546",
      "miles": 8.9,
      "city": "Janesville",
      "state": "WI"
    },
    {
      "zip": "53538",
      "miles": 9.4,
      "city": "Fort Atkinson",
      "state": "WI"
    },
    {
      "zip": "53534",
      "miles": 9.8,
      "city": "Edgerton",
      "state": "WI"
    },
    {
      "zip": "53505",
      "miles": 10.1,
      "city": "Avalon",
      "state": "WI"
    },
    {
      "zip": "53190",
      "miles": 10.2,
      "city": "Whitewater",
      "state": "WI"
    },
    {
      "zip": "53548",
      "miles": 11.9,
      "city": "Janesville",
      "state": "WI"
    },
    {
      "zip": "53501",
      "miles": 14.2,
      "city": "Afton",
      "state": "WI"
    },
    {
      "zip": "53523",
      "miles": 14.9,
      "city": "Cambridge",
      "state": "WI"
    }
  ],
  "release": "2026-10-12",
  "attribution": {
    "source": "zipcodes.pro",
    "url": "https://zipcodes.pro/zip/53563",
    "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."
  }
}