{
  "zip": "63123",
  "type": "standard",
  "type_source": "inferred",
  "city": "Saint Louis",
  "other_place_names": [
    "Affton",
    "Green Park",
    "Concord",
    "Grantwood Village",
    "Crestwood",
    "St. George",
    "Lakeshire",
    "Lemay",
    "Marlborough",
    "Wilbur Park",
    "Shrewsbury",
    "Mehlville"
  ],
  "state": "MO",
  "state_name": "Missouri",
  "county": {
    "fips": "29189",
    "name": "St. Louis County",
    "short_name": "St. Louis"
  },
  "counties": [
    {
      "county_fips": "29189",
      "name": "St. Louis County",
      "short_name": "St. Louis",
      "weight": 0.9505,
      "basis": "land_area"
    },
    {
      "county_fips": "29510",
      "name": "St. Louis city",
      "short_name": "St. Louis city",
      "weight": 0.0495,
      "basis": "land_area"
    }
  ],
  "location": {
    "lat": 38.547432,
    "lng": -90.328109,
    "source": "gazetteer_internal_point",
    "timezone": "America/Chicago"
  },
  "is_zcta": true,
  "parent_zcta": null,
  "metro": {
    "cbsa_code": "41180",
    "name": "St. Louis, MO-IL",
    "type": "metro",
    "csa_code": "476",
    "csa_name": "St. Louis-St. Charles-Farmington, MO-IL"
  },
  "demographics": {
    "population": 49077,
    "households": 21755,
    "housing_units": 23178,
    "median_age": 40.9,
    "median_household_income": 77055,
    "median_home_value": 219400,
    "median_rent": 1006,
    "pct_bachelors_plus": 37.6,
    "mean_commute_min": 23.7,
    "density_per_sqmi": 3940.7
  },
  "business": {
    "establishments": 915,
    "employees": 13475,
    "annual_payroll_thousands": 767582
  },
  "tax": {
    "irs_returns": 26750,
    "irs_agi_thousands": 1860495
  },
  "area": {
    "land_sqmi": 12.454,
    "water_sqmi": 0.1
  },
  "nearest_zips": [
    {
      "zip": "63125",
      "miles": 2.7,
      "city": "Saint Louis",
      "state": "MO"
    },
    {
      "zip": "63126",
      "miles": 2.7,
      "city": "Saint Louis",
      "state": "MO"
    },
    {
      "zip": "63109",
      "miles": 3.1,
      "city": "Saint Louis",
      "state": "MO"
    },
    {
      "zip": "63119",
      "miles": 3.2,
      "city": "Saint Louis",
      "state": "MO"
    },
    {
      "zip": "63116",
      "miles": 4.1,
      "city": "Saint Louis",
      "state": "MO"
    },
    {
      "zip": "63111",
      "miles": 4.3,
      "city": "Saint Louis",
      "state": "MO"
    },
    {
      "zip": "63143",
      "miles": 4.5,
      "city": "Saint Louis",
      "state": "MO"
    },
    {
      "zip": "63139",
      "miles": 4.8,
      "city": "Saint Louis",
      "state": "MO"
    },
    {
      "zip": "63127",
      "miles": 4.9,
      "city": "Saint Louis",
      "state": "MO"
    },
    {
      "zip": "63128",
      "miles": 5,
      "city": "Saint Louis",
      "state": "MO"
    }
  ],
  "release": "2026-10-12",
  "attribution": {
    "source": "zipcodes.pro",
    "url": "https://zipcodes.pro/zip/63123",
    "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."
  }
}