{
  "zip": "37030",
  "type": "standard",
  "type_source": "inferred",
  "city": "Carthage",
  "other_place_names": [
    "South Carthage"
  ],
  "state": "TN",
  "state_name": "Tennessee",
  "county": {
    "fips": "47159",
    "name": "Smith County",
    "short_name": "Smith"
  },
  "counties": [
    {
      "county_fips": "47159",
      "name": "Smith County",
      "short_name": "Smith",
      "weight": 0.9979,
      "basis": "land_area"
    },
    {
      "county_fips": "47087",
      "name": "Jackson County",
      "short_name": "Jackson",
      "weight": 0.0021,
      "basis": "land_area"
    }
  ],
  "location": {
    "lat": 36.271671,
    "lng": -85.942372,
    "source": "gazetteer_internal_point",
    "timezone": "America/Chicago"
  },
  "is_zcta": true,
  "parent_zcta": null,
  "metro": {
    "cbsa_code": "34980",
    "name": "Nashville-Davidson--Murfreesboro--Franklin, TN",
    "type": "metro",
    "csa_code": "400",
    "csa_name": "Nashville-Davidson--Murfreesboro, TN"
  },
  "demographics": {
    "population": 8183,
    "households": 3171,
    "housing_units": 3386,
    "median_age": 40,
    "median_household_income": 61800,
    "median_home_value": 252600,
    "median_rent": 962,
    "pct_bachelors_plus": 20.1,
    "mean_commute_min": 31.4,
    "density_per_sqmi": 125.8
  },
  "business": {
    "establishments": 171,
    "employees": 2738,
    "annual_payroll_thousands": 128170
  },
  "tax": {
    "irs_returns": 3230,
    "irs_agi_thousands": 233572
  },
  "area": {
    "land_sqmi": 65.023,
    "water_sqmi": 4.933
  },
  "nearest_zips": [
    {
      "zip": "38560",
      "miles": 5.9,
      "city": "Elmwood",
      "state": "TN"
    },
    {
      "zip": "38563",
      "miles": 6.2,
      "city": "Gordonsville",
      "state": "TN"
    },
    {
      "zip": "37151",
      "miles": 6.2,
      "city": "Riddleton",
      "state": "TN"
    },
    {
      "zip": "37145",
      "miles": 7.7,
      "city": "Pleasant Shade",
      "state": "TN"
    },
    {
      "zip": "38552",
      "miles": 8.1,
      "city": "Chestnut Mound",
      "state": "TN"
    },
    {
      "zip": "38547",
      "miles": 8.9,
      "city": "Brush Creek",
      "state": "TN"
    },
    {
      "zip": "38567",
      "miles": 9.6,
      "city": "Hickman",
      "state": "TN"
    },
    {
      "zip": "38564",
      "miles": 10.5,
      "city": "Granville",
      "state": "TN"
    },
    {
      "zip": "38548",
      "miles": 10.7,
      "city": "Buffalo Valley",
      "state": "TN"
    },
    {
      "zip": "37057",
      "miles": 11.2,
      "city": "Dixon Springs",
      "state": "TN"
    }
  ],
  "release": "2026-10-12",
  "attribution": {
    "source": "zipcodes.pro",
    "url": "https://zipcodes.pro/zip/37030",
    "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."
  }
}