{
  "zip": "90603",
  "type": "standard",
  "type_source": "inferred",
  "city": "Whittier",
  "other_place_names": [
    "South Whittier"
  ],
  "state": "CA",
  "state_name": "California",
  "county": {
    "fips": "06037",
    "name": "Los Angeles County",
    "short_name": "Los Angeles"
  },
  "counties": [
    {
      "county_fips": "06037",
      "name": "Los Angeles County",
      "short_name": "Los Angeles",
      "weight": 1,
      "basis": "land_area"
    }
  ],
  "location": {
    "lat": 33.944866,
    "lng": -117.992338,
    "source": "gazetteer_internal_point",
    "timezone": "America/Los_Angeles"
  },
  "is_zcta": true,
  "parent_zcta": null,
  "metro": {
    "cbsa_code": "31080",
    "name": "Los Angeles-Long Beach-Anaheim, CA",
    "type": "metro",
    "csa_code": "348",
    "csa_name": "Los Angeles-Long Beach, CA"
  },
  "demographics": {
    "population": 21118,
    "households": 6504,
    "housing_units": 6746,
    "median_age": 40.8,
    "median_household_income": 136705,
    "median_home_value": 859000,
    "median_rent": 2344,
    "pct_bachelors_plus": 34.2,
    "mean_commute_min": 32,
    "density_per_sqmi": 6676.6
  },
  "business": {
    "establishments": 458,
    "employees": 5612,
    "annual_payroll_thousands": 269654
  },
  "tax": {
    "irs_returns": 10170,
    "irs_agi_thousands": 1038772
  },
  "area": {
    "land_sqmi": 3.163,
    "water_sqmi": 0
  },
  "nearest_zips": [
    {
      "zip": "90604",
      "miles": 1.7,
      "city": "Whittier",
      "state": "CA"
    },
    {
      "zip": "90605",
      "miles": 1.7,
      "city": "Whittier",
      "state": "CA"
    },
    {
      "zip": "90637",
      "miles": 2.2,
      "city": "La Mirada",
      "state": "CA"
    },
    {
      "zip": "90631",
      "miles": 2.3,
      "city": "La Habra",
      "state": "CA"
    },
    {
      "zip": "90602",
      "miles": 2.7,
      "city": "Whittier",
      "state": "CA"
    },
    {
      "zip": "90633",
      "miles": 2.8,
      "city": "La Habra",
      "state": "CA"
    },
    {
      "zip": "90639",
      "miles": 3,
      "city": "La Mirada",
      "state": "CA"
    },
    {
      "zip": "90632",
      "miles": 3,
      "city": "La Habra",
      "state": "CA"
    },
    {
      "zip": "90638",
      "miles": 3.1,
      "city": "La Mirada",
      "state": "CA"
    },
    {
      "zip": "90607",
      "miles": 3.3,
      "city": "Whittier",
      "state": "CA"
    }
  ],
  "release": "2026-10-12",
  "attribution": {
    "source": "zipcodes.pro",
    "url": "https://zipcodes.pro/zip/90603",
    "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."
  }
}