{
  "zip": "91737",
  "type": "standard",
  "type_source": "inferred",
  "city": "Rancho Cucamonga",
  "other_place_names": [],
  "state": "CA",
  "state_name": "California",
  "county": {
    "fips": "06071",
    "name": "San Bernardino County",
    "short_name": "San Bernardino"
  },
  "counties": [
    {
      "county_fips": "06071",
      "name": "San Bernardino County",
      "short_name": "San Bernardino",
      "weight": 1,
      "basis": "land_area"
    }
  ],
  "location": {
    "lat": 34.155238,
    "lng": -117.578097,
    "source": "gazetteer_internal_point",
    "timezone": "America/Los_Angeles"
  },
  "is_zcta": true,
  "parent_zcta": null,
  "metro": {
    "cbsa_code": "40140",
    "name": "Riverside-San Bernardino-Ontario, CA",
    "type": "metro",
    "csa_code": "348",
    "csa_name": "Los Angeles-Long Beach, CA"
  },
  "demographics": {
    "population": 22958,
    "households": 7995,
    "housing_units": 8340,
    "median_age": 44.8,
    "median_household_income": 122334,
    "median_home_value": 878400,
    "median_rent": 2371,
    "pct_bachelors_plus": 41.4,
    "mean_commute_min": 31.6,
    "density_per_sqmi": 2275.3
  },
  "business": {
    "establishments": 393,
    "employees": 3913,
    "annual_payroll_thousands": 127403
  },
  "tax": {
    "irs_returns": 11390,
    "irs_agi_thousands": 1351316
  },
  "area": {
    "land_sqmi": 10.09,
    "water_sqmi": 0
  },
  "nearest_zips": [
    {
      "zip": "91701",
      "miles": 1.7,
      "city": "Rancho Cucamonga",
      "state": "CA"
    },
    {
      "zip": "91729",
      "miles": 3.5,
      "city": "Rancho Cucamonga",
      "state": "CA"
    },
    {
      "zip": "91739",
      "miles": 3.5,
      "city": "Rancho Cucamonga",
      "state": "CA"
    },
    {
      "zip": "91730",
      "miles": 3.8,
      "city": "Rancho Cucamonga",
      "state": "CA"
    },
    {
      "zip": "91784",
      "miles": 4.5,
      "city": "Upland",
      "state": "CA"
    },
    {
      "zip": "91785",
      "miles": 5.4,
      "city": "Upland",
      "state": "CA"
    },
    {
      "zip": "91764",
      "miles": 5.8,
      "city": "Ontario",
      "state": "CA"
    },
    {
      "zip": "91786",
      "miles": 5.9,
      "city": "Upland",
      "state": "CA"
    },
    {
      "zip": "91743",
      "miles": 6.3,
      "city": "Guasti",
      "state": "CA"
    },
    {
      "zip": "92358",
      "miles": 6.3,
      "city": "Lytle Creek",
      "state": "CA"
    }
  ],
  "release": "2026-10-12",
  "attribution": {
    "source": "zipcodes.pro",
    "url": "https://zipcodes.pro/zip/91737",
    "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."
  }
}