{
  "zip": "57631",
  "type": "standard",
  "type_source": "inferred",
  "city": "Glenham",
  "other_place_names": [],
  "state": "SD",
  "state_name": "South Dakota",
  "county": {
    "fips": "46129",
    "name": "Walworth County",
    "short_name": "Walworth"
  },
  "counties": [
    {
      "county_fips": "46129",
      "name": "Walworth County",
      "short_name": "Walworth",
      "weight": 0.5197,
      "basis": "land_area"
    },
    {
      "county_fips": "46021",
      "name": "Campbell County",
      "short_name": "Campbell",
      "weight": 0.4803,
      "basis": "land_area"
    }
  ],
  "location": {
    "lat": 45.589095,
    "lng": -100.296128,
    "source": "gazetteer_internal_point",
    "timezone": "America/Chicago"
  },
  "is_zcta": true,
  "parent_zcta": null,
  "metro": null,
  "demographics": {
    "population": 364,
    "households": 207,
    "housing_units": 296,
    "median_age": 60.7,
    "median_household_income": 56827,
    "median_home_value": 162500,
    "median_rent": null,
    "pct_bachelors_plus": 21.6,
    "mean_commute_min": 15,
    "density_per_sqmi": 2.8
  },
  "business": {
    "establishments": 6,
    "employees": 18,
    "annual_payroll_thousands": 737
  },
  "tax": {
    "irs_returns": 170,
    "irs_agi_thousands": 16884
  },
  "area": {
    "land_sqmi": 130.04,
    "water_sqmi": 19.616
  },
  "nearest_zips": [
    {
      "zip": "57646",
      "miles": 13.1,
      "city": "Mound City",
      "state": "SD"
    },
    {
      "zip": "57658",
      "miles": 14,
      "city": "Wakpala",
      "state": "SD"
    },
    {
      "zip": "57472",
      "miles": 14.3,
      "city": "Selby",
      "state": "SD"
    },
    {
      "zip": "57601",
      "miles": 17.6,
      "city": "Mobridge",
      "state": "SD"
    },
    {
      "zip": "57632",
      "miles": 20.8,
      "city": "Herreid",
      "state": "SD"
    },
    {
      "zip": "57452",
      "miles": 21.4,
      "city": "Java",
      "state": "SD"
    },
    {
      "zip": "57420",
      "miles": 22.5,
      "city": "Akaska",
      "state": "SD"
    },
    {
      "zip": "57648",
      "miles": 23.6,
      "city": "Pollock",
      "state": "SD"
    },
    {
      "zip": "57657",
      "miles": 24.5,
      "city": "Trail City",
      "state": "SD"
    },
    {
      "zip": "57642",
      "miles": 24.5,
      "city": "Mc Laughlin",
      "state": "SD"
    }
  ],
  "release": "2026-10-12",
  "attribution": {
    "source": "zipcodes.pro",
    "url": "https://zipcodes.pro/zip/57631",
    "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."
  }
}