{
  "zip": "06340",
  "type": "standard",
  "type_source": "inferred",
  "city": "Groton",
  "other_place_names": [
    "Conning Towers-Nautilus Park",
    "Long Hill",
    "Poquonock Bridge",
    "Noank",
    "Groton Long Point"
  ],
  "state": "CT",
  "state_name": "Connecticut",
  "county": {
    "fips": "09011",
    "name": "New London County",
    "short_name": "New London"
  },
  "counties": [
    {
      "county_fips": "09011",
      "name": "New London County",
      "short_name": "New London",
      "weight": 1,
      "basis": "land_area"
    }
  ],
  "location": {
    "lat": 41.354409,
    "lng": -72.040266,
    "source": "gazetteer_internal_point",
    "timezone": "America/New_York"
  },
  "is_zcta": true,
  "parent_zcta": null,
  "metro": null,
  "demographics": {
    "population": 29863,
    "households": 12879,
    "housing_units": 14359,
    "median_age": 33.7,
    "median_household_income": 81792,
    "median_home_value": 294700,
    "median_rent": 1599,
    "pct_bachelors_plus": 39.2,
    "mean_commute_min": 18.2,
    "density_per_sqmi": 1324.9
  },
  "business": {
    "establishments": 604,
    "employees": 22442,
    "annual_payroll_thousands": 2096855
  },
  "tax": {
    "irs_returns": 14120,
    "irs_agi_thousands": 1054514
  },
  "area": {
    "land_sqmi": 22.54,
    "water_sqmi": 4.722
  },
  "nearest_zips": [
    {
      "zip": "06320",
      "miles": 3.2,
      "city": "New London",
      "state": "CT"
    },
    {
      "zip": "06388",
      "miles": 3.4,
      "city": "West Mystic",
      "state": "CT"
    },
    {
      "zip": "06355",
      "miles": 3.6,
      "city": "Mystic",
      "state": "CT"
    },
    {
      "zip": "06349",
      "miles": 4.1,
      "city": "Groton",
      "state": "CT"
    },
    {
      "zip": "06372",
      "miles": 5.3,
      "city": "Old Mystic",
      "state": "CT"
    },
    {
      "zip": "06375",
      "miles": 5.6,
      "city": "Quaker Hill",
      "state": "CT"
    },
    {
      "zip": "06335",
      "miles": 5.6,
      "city": "Gales Ferry",
      "state": "CT"
    },
    {
      "zip": "06385",
      "miles": 6.1,
      "city": "Waterford",
      "state": "CT"
    },
    {
      "zip": "06339",
      "miles": 6.6,
      "city": "Ledyard",
      "state": "CT"
    },
    {
      "zip": "06378",
      "miles": 7.1,
      "city": "Stonington",
      "state": "CT"
    }
  ],
  "release": "2026-10-12",
  "attribution": {
    "source": "zipcodes.pro",
    "url": "https://zipcodes.pro/zip/06340",
    "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."
  }
}