{
  "zip": "18109",
  "type": "standard",
  "type_source": "inferred",
  "city": "Allentown",
  "other_place_names": [],
  "state": "PA",
  "state_name": "Pennsylvania",
  "county": {
    "fips": "42077",
    "name": "Lehigh County",
    "short_name": "Lehigh"
  },
  "counties": [
    {
      "county_fips": "42077",
      "name": "Lehigh County",
      "short_name": "Lehigh",
      "weight": 0.9491,
      "basis": "land_area"
    },
    {
      "county_fips": "42095",
      "name": "Northampton County",
      "short_name": "Northampton",
      "weight": 0.0509,
      "basis": "land_area"
    }
  ],
  "location": {
    "lat": 40.635486,
    "lng": -75.441922,
    "source": "gazetteer_internal_point",
    "timezone": "America/New_York"
  },
  "is_zcta": true,
  "parent_zcta": null,
  "metro": {
    "cbsa_code": "10900",
    "name": "Allentown-Bethlehem-Easton, PA-NJ",
    "type": "metro",
    "csa_code": "106",
    "csa_name": "Allentown-Bethlehem-East Stroudsburg, PA-NJ"
  },
  "demographics": {
    "population": 18446,
    "households": 7030,
    "housing_units": 7519,
    "median_age": 36.6,
    "median_household_income": 58031,
    "median_home_value": 198800,
    "median_rent": 1331,
    "pct_bachelors_plus": 16,
    "mean_commute_min": 23.3,
    "density_per_sqmi": 2236.4
  },
  "business": {
    "establishments": 802,
    "employees": 17337,
    "annual_payroll_thousands": 1083731
  },
  "tax": {
    "irs_returns": 9670,
    "irs_agi_thousands": 431270
  },
  "area": {
    "land_sqmi": 8.248,
    "water_sqmi": 0.23
  },
  "nearest_zips": [
    {
      "zip": "18032",
      "miles": 2,
      "city": "Catasauqua",
      "state": "PA"
    },
    {
      "zip": "18002",
      "miles": 2.2,
      "city": "Lehigh Valley",
      "state": "PA"
    },
    {
      "zip": "18018",
      "miles": 2.5,
      "city": "Bethlehem",
      "state": "PA"
    },
    {
      "zip": "18102",
      "miles": 2.6,
      "city": "Allentown",
      "state": "PA"
    },
    {
      "zip": "18101",
      "miles": 2.7,
      "city": "Allentown",
      "state": "PA"
    },
    {
      "zip": "18105",
      "miles": 3.1,
      "city": "Allentown",
      "state": "PA"
    },
    {
      "zip": "18017",
      "miles": 3.3,
      "city": "Bethlehem",
      "state": "PA"
    },
    {
      "zip": "18052",
      "miles": 3.6,
      "city": "Whitehall",
      "state": "PA"
    },
    {
      "zip": "18025",
      "miles": 3.8,
      "city": "Bethlehem",
      "state": "PA"
    },
    {
      "zip": "18001",
      "miles": 4.3,
      "city": "Lehigh Valley",
      "state": "PA"
    }
  ],
  "release": "2026-10-12",
  "attribution": {
    "source": "zipcodes.pro",
    "url": "https://zipcodes.pro/zip/18109",
    "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."
  }
}