{
  "zip": "61603",
  "type": "standard",
  "type_source": "inferred",
  "city": "Peoria",
  "other_place_names": [],
  "state": "IL",
  "state_name": "Illinois",
  "county": {
    "fips": "17143",
    "name": "Peoria County",
    "short_name": "Peoria"
  },
  "counties": [
    {
      "county_fips": "17143",
      "name": "Peoria County",
      "short_name": "Peoria",
      "weight": 1,
      "basis": "land_area"
    }
  ],
  "location": {
    "lat": 40.709838,
    "lng": -89.575458,
    "source": "gazetteer_internal_point",
    "timezone": "America/Chicago"
  },
  "is_zcta": true,
  "parent_zcta": null,
  "metro": {
    "cbsa_code": "37900",
    "name": "Peoria, IL",
    "type": "metro",
    "csa_code": "427",
    "csa_name": "Peoria-Canton, IL"
  },
  "demographics": {
    "population": 15356,
    "households": 6674,
    "housing_units": 8088,
    "median_age": 34.1,
    "median_household_income": 41618,
    "median_home_value": 77500,
    "median_rent": 995,
    "pct_bachelors_plus": 14.7,
    "mean_commute_min": 17.5,
    "density_per_sqmi": 3634.6
  },
  "business": {
    "establishments": 272,
    "employees": 4426,
    "annual_payroll_thousands": 207657
  },
  "tax": {
    "irs_returns": 6400,
    "irs_agi_thousands": 246053
  },
  "area": {
    "land_sqmi": 4.225,
    "water_sqmi": 0.966
  },
  "nearest_zips": [
    {
      "zip": "61639",
      "miles": 0.6,
      "city": "Peoria",
      "state": "IL"
    },
    {
      "zip": "61637",
      "miles": 0.9,
      "city": "Peoria",
      "state": "IL"
    },
    {
      "zip": "61636",
      "miles": 1.2,
      "city": "Peoria",
      "state": "IL"
    },
    {
      "zip": "61601",
      "miles": 1.4,
      "city": "Peoria",
      "state": "IL"
    },
    {
      "zip": "61629",
      "miles": 1.4,
      "city": "Peoria",
      "state": "IL"
    },
    {
      "zip": "61634",
      "miles": 1.7,
      "city": "Peoria",
      "state": "IL"
    },
    {
      "zip": "61606",
      "miles": 2,
      "city": "Peoria",
      "state": "IL"
    },
    {
      "zip": "61633",
      "miles": 2.1,
      "city": "Peoria",
      "state": "IL"
    },
    {
      "zip": "61611",
      "miles": 2.1,
      "city": "East Peoria",
      "state": "IL"
    },
    {
      "zip": "61625",
      "miles": 2.2,
      "city": "Peoria",
      "state": "IL"
    }
  ],
  "release": "2026-10-12",
  "attribution": {
    "source": "zipcodes.pro",
    "url": "https://zipcodes.pro/zip/61603",
    "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."
  }
}