{
  "zip": "52001",
  "type": "standard",
  "type_source": "inferred",
  "city": "Dubuque",
  "other_place_names": [
    "Sageville"
  ],
  "state": "IA",
  "state_name": "Iowa",
  "county": {
    "fips": "19061",
    "name": "Dubuque County",
    "short_name": "Dubuque"
  },
  "counties": [
    {
      "county_fips": "19061",
      "name": "Dubuque County",
      "short_name": "Dubuque",
      "weight": 1,
      "basis": "land_area"
    }
  ],
  "location": {
    "lat": 42.548323,
    "lng": -90.69367,
    "source": "gazetteer_internal_point",
    "timezone": "America/Chicago"
  },
  "is_zcta": true,
  "parent_zcta": null,
  "metro": {
    "cbsa_code": "20220",
    "name": "Dubuque, IA",
    "type": "metro",
    "csa_code": null,
    "csa_name": null
  },
  "demographics": {
    "population": 43101,
    "households": 18973,
    "housing_units": 20333,
    "median_age": 36.6,
    "median_household_income": 61643,
    "median_home_value": 178000,
    "median_rent": 924,
    "pct_bachelors_plus": 29.7,
    "mean_commute_min": 14.5,
    "density_per_sqmi": 1649.9
  },
  "business": {
    "establishments": 986,
    "employees": 24939,
    "annual_payroll_thousands": 1483031
  },
  "tax": {
    "irs_returns": 19480,
    "irs_agi_thousands": 1203226
  },
  "area": {
    "land_sqmi": 26.123,
    "water_sqmi": 2.707
  },
  "nearest_zips": [
    {
      "zip": "52004",
      "miles": 3.6,
      "city": "Dubuque",
      "state": "IA"
    },
    {
      "zip": "52099",
      "miles": 3.6,
      "city": "Dubuque",
      "state": "IA"
    },
    {
      "zip": "52002",
      "miles": 4.3,
      "city": "Dubuque",
      "state": "IA"
    },
    {
      "zip": "53812",
      "miles": 5.2,
      "city": "Kieler",
      "state": "WI"
    },
    {
      "zip": "53808",
      "miles": 8,
      "city": "Dickeyville",
      "state": "WI"
    },
    {
      "zip": "53824",
      "miles": 8,
      "city": "Sinsinawa",
      "state": "WI"
    },
    {
      "zip": "52073",
      "miles": 8.1,
      "city": "Sherrill",
      "state": "IA"
    },
    {
      "zip": "52003",
      "miles": 8.2,
      "city": "Dubuque",
      "state": "IA"
    },
    {
      "zip": "52039",
      "miles": 8.4,
      "city": "Durango",
      "state": "IA"
    },
    {
      "zip": "53811",
      "miles": 8.6,
      "city": "Hazel Green",
      "state": "WI"
    }
  ],
  "release": "2026-10-12",
  "attribution": {
    "source": "zipcodes.pro",
    "url": "https://zipcodes.pro/zip/52001",
    "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."
  }
}