{
  "zip": "18951",
  "type": "standard",
  "type_source": "inferred",
  "city": "Quakertown",
  "other_place_names": [
    "Spinnerstown",
    "Milford Square",
    "Trumbauersville"
  ],
  "state": "PA",
  "state_name": "Pennsylvania",
  "county": {
    "fips": "42017",
    "name": "Bucks County",
    "short_name": "Bucks"
  },
  "counties": [
    {
      "county_fips": "42017",
      "name": "Bucks County",
      "short_name": "Bucks",
      "weight": 0.9956,
      "basis": "land_area"
    },
    {
      "county_fips": "42077",
      "name": "Lehigh County",
      "short_name": "Lehigh",
      "weight": 0.0044,
      "basis": "land_area"
    }
  ],
  "location": {
    "lat": 40.45918,
    "lng": -75.347434,
    "source": "gazetteer_internal_point",
    "timezone": "America/New_York"
  },
  "is_zcta": true,
  "parent_zcta": null,
  "metro": {
    "cbsa_code": "37980",
    "name": "Philadelphia-Camden-Wilmington, PA-NJ-DE-MD",
    "type": "metro",
    "csa_code": "428",
    "csa_name": "Philadelphia-Reading-Camden, PA-NJ-DE-MD"
  },
  "demographics": {
    "population": 36568,
    "households": 14202,
    "housing_units": 14881,
    "median_age": 44.2,
    "median_household_income": 98268,
    "median_home_value": 363200,
    "median_rent": 1441,
    "pct_bachelors_plus": 32.5,
    "mean_commute_min": 28.3,
    "density_per_sqmi": 510.1
  },
  "business": {
    "establishments": 1015,
    "employees": 15471,
    "annual_payroll_thousands": 781019
  },
  "tax": {
    "irs_returns": 18480,
    "irs_agi_thousands": 1553976
  },
  "area": {
    "land_sqmi": 71.689,
    "water_sqmi": 1.542
  },
  "nearest_zips": [
    {
      "zip": "18955",
      "miles": 2.5,
      "city": "Richlandtown",
      "state": "PA"
    },
    {
      "zip": "18981",
      "miles": 3,
      "city": "Zionhill",
      "state": "PA"
    },
    {
      "zip": "18935",
      "miles": 3.1,
      "city": "Milford Square",
      "state": "PA"
    },
    {
      "zip": "18970",
      "miles": 3.7,
      "city": "Trumbauersville",
      "state": "PA"
    },
    {
      "zip": "18036",
      "miles": 4.1,
      "city": "Coopersburg",
      "state": "PA"
    },
    {
      "zip": "18968",
      "miles": 4.9,
      "city": "Spinnerstown",
      "state": "PA"
    },
    {
      "zip": "18060",
      "miles": 6.3,
      "city": "Limeport",
      "state": "PA"
    },
    {
      "zip": "18960",
      "miles": 6.5,
      "city": "Sellersville",
      "state": "PA"
    },
    {
      "zip": "18034",
      "miles": 6.8,
      "city": "Center Valley",
      "state": "PA"
    },
    {
      "zip": "18944",
      "miles": 7.5,
      "city": "Perkasie",
      "state": "PA"
    }
  ],
  "release": "2026-10-12",
  "attribution": {
    "source": "zipcodes.pro",
    "url": "https://zipcodes.pro/zip/18951",
    "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."
  }
}