{
  "zip": "62539",
  "type": "standard",
  "type_source": "inferred",
  "city": "Illiopolis",
  "other_place_names": [],
  "state": "IL",
  "state_name": "Illinois",
  "county": {
    "fips": "17167",
    "name": "Sangamon County",
    "short_name": "Sangamon"
  },
  "counties": [
    {
      "county_fips": "17167",
      "name": "Sangamon County",
      "short_name": "Sangamon",
      "weight": 0.7685,
      "basis": "land_area"
    },
    {
      "county_fips": "17115",
      "name": "Macon County",
      "short_name": "Macon",
      "weight": 0.2315,
      "basis": "land_area"
    }
  ],
  "location": {
    "lat": 39.866801,
    "lng": -89.249159,
    "source": "gazetteer_internal_point",
    "timezone": "America/Chicago"
  },
  "is_zcta": true,
  "parent_zcta": null,
  "metro": {
    "cbsa_code": "44100",
    "name": "Springfield, IL",
    "type": "metro",
    "csa_code": "522",
    "csa_name": "Springfield-Jacksonville-Lincoln, IL"
  },
  "demographics": {
    "population": 1412,
    "households": 564,
    "housing_units": 588,
    "median_age": 39.8,
    "median_household_income": 82750,
    "median_home_value": 123400,
    "median_rent": 663,
    "pct_bachelors_plus": 31.6,
    "mean_commute_min": 22.3,
    "density_per_sqmi": 30.5
  },
  "business": {
    "establishments": 16,
    "employees": 69,
    "annual_payroll_thousands": 1704
  },
  "tax": {
    "irs_returns": 590,
    "irs_agi_thousands": 46463
  },
  "area": {
    "land_sqmi": 46.356,
    "water_sqmi": 0
  },
  "nearest_zips": [
    {
      "zip": "62551",
      "miles": 5,
      "city": "Niantic",
      "state": "IL"
    },
    {
      "zip": "62515",
      "miles": 6.2,
      "city": "Buffalo",
      "state": "IL"
    },
    {
      "zip": "62547",
      "miles": 6.7,
      "city": "Mount Auburn",
      "state": "IL"
    },
    {
      "zip": "62548",
      "miles": 8.1,
      "city": "Mount Pulaski",
      "state": "IL"
    },
    {
      "zip": "62537",
      "miles": 8.3,
      "city": "Harristown",
      "state": "IL"
    },
    {
      "zip": "62543",
      "miles": 8.8,
      "city": "Latham",
      "state": "IL"
    },
    {
      "zip": "62519",
      "miles": 8.9,
      "city": "Cornland",
      "state": "IL"
    },
    {
      "zip": "62541",
      "miles": 8.9,
      "city": "Lake Fork",
      "state": "IL"
    },
    {
      "zip": "62545",
      "miles": 9.9,
      "city": "Mechanicsburg",
      "state": "IL"
    },
    {
      "zip": "62573",
      "miles": 10.8,
      "city": "Warrensburg",
      "state": "IL"
    }
  ],
  "release": "2026-10-12",
  "attribution": {
    "source": "zipcodes.pro",
    "url": "https://zipcodes.pro/zip/62539",
    "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."
  }
}