{
  "zip": "01938",
  "type": "standard",
  "type_source": "inferred",
  "city": "Ipswich",
  "other_place_names": [],
  "state": "MA",
  "state_name": "Massachusetts",
  "county": {
    "fips": "25009",
    "name": "Essex County",
    "short_name": "Essex"
  },
  "counties": [
    {
      "county_fips": "25009",
      "name": "Essex County",
      "short_name": "Essex",
      "weight": 1,
      "basis": "land_area"
    }
  ],
  "location": {
    "lat": 42.686464,
    "lng": -70.839594,
    "source": "gazetteer_internal_point",
    "timezone": "America/New_York"
  },
  "is_zcta": true,
  "parent_zcta": null,
  "metro": {
    "cbsa_code": "14460",
    "name": "Boston-Cambridge-Newton, MA-NH",
    "type": "metro",
    "csa_code": "148",
    "csa_name": "Boston-Worcester-Providence, MA-RI-NH"
  },
  "demographics": {
    "population": 13930,
    "households": 5709,
    "housing_units": 6224,
    "median_age": 47.2,
    "median_household_income": 138750,
    "median_home_value": 745400,
    "median_rent": 1598,
    "pct_bachelors_plus": 60.2,
    "mean_commute_min": 29.4,
    "density_per_sqmi": 433.9
  },
  "business": {
    "establishments": 372,
    "employees": 5007,
    "annual_payroll_thousands": 438570
  },
  "tax": {
    "irs_returns": 7570,
    "irs_agi_thousands": 1118656
  },
  "area": {
    "land_sqmi": 32.105,
    "water_sqmi": 6.421
  },
  "nearest_zips": [
    {
      "zip": "01969",
      "miles": 3.4,
      "city": "Rowley",
      "state": "MA"
    },
    {
      "zip": "01936",
      "miles": 4.1,
      "city": "Hamilton",
      "state": "MA"
    },
    {
      "zip": "01961",
      "miles": 4.1,
      "city": "Peabody",
      "state": "MA"
    },
    {
      "zip": "01971",
      "miles": 4.1,
      "city": "Salem",
      "state": "MA"
    },
    {
      "zip": "01982",
      "miles": 4.3,
      "city": "South Hamilton",
      "state": "MA"
    },
    {
      "zip": "01929",
      "miles": 4.7,
      "city": "Essex",
      "state": "MA"
    },
    {
      "zip": "01951",
      "miles": 6,
      "city": "Newbury",
      "state": "MA"
    },
    {
      "zip": "01983",
      "miles": 6.1,
      "city": "Topsfield",
      "state": "MA"
    },
    {
      "zip": "01922",
      "miles": 6.2,
      "city": "Byfield",
      "state": "MA"
    },
    {
      "zip": "01984",
      "miles": 6.3,
      "city": "Wenham",
      "state": "MA"
    }
  ],
  "release": "2026-10-12",
  "attribution": {
    "source": "zipcodes.pro",
    "url": "https://zipcodes.pro/zip/01938",
    "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."
  }
}