{
  "zip": "50240",
  "type": "standard",
  "type_source": "inferred",
  "city": "Saint Charles",
  "other_place_names": [
    "Martensdale"
  ],
  "state": "IA",
  "state_name": "Iowa",
  "county": {
    "fips": "19121",
    "name": "Madison County",
    "short_name": "Madison"
  },
  "counties": [
    {
      "county_fips": "19121",
      "name": "Madison County",
      "short_name": "Madison",
      "weight": 0.5139,
      "basis": "land_area"
    },
    {
      "county_fips": "19181",
      "name": "Warren County",
      "short_name": "Warren",
      "weight": 0.4861,
      "basis": "land_area"
    }
  ],
  "location": {
    "lat": 41.29709,
    "lng": -93.793028,
    "source": "gazetteer_internal_point",
    "timezone": "America/Chicago"
  },
  "is_zcta": true,
  "parent_zcta": null,
  "metro": {
    "cbsa_code": "19780",
    "name": "Des Moines-West Des Moines, IA",
    "type": "metro",
    "csa_code": "218",
    "csa_name": "Des Moines-West Des Moines-Ames, IA"
  },
  "demographics": {
    "population": 2393,
    "households": 861,
    "housing_units": 915,
    "median_age": 43.6,
    "median_household_income": 107563,
    "median_home_value": 305800,
    "median_rent": 855,
    "pct_bachelors_plus": 30.5,
    "mean_commute_min": 32.8,
    "density_per_sqmi": 31.8
  },
  "business": {
    "establishments": 44,
    "employees": 134,
    "annual_payroll_thousands": 5365
  },
  "tax": {
    "irs_returns": 1150,
    "irs_agi_thousands": 104925
  },
  "area": {
    "land_sqmi": 75.292,
    "water_sqmi": 0.243
  },
  "nearest_zips": [
    {
      "zip": "50241",
      "miles": 3.2,
      "city": "Saint Marys",
      "state": "IA"
    },
    {
      "zip": "50033",
      "miles": 4.4,
      "city": "Bevington",
      "state": "IA"
    },
    {
      "zip": "50218",
      "miles": 5.6,
      "city": "Patterson",
      "state": "IA"
    },
    {
      "zip": "50229",
      "miles": 5.7,
      "city": "Prole",
      "state": "IA"
    },
    {
      "zip": "50160",
      "miles": 6,
      "city": "Martensdale",
      "state": "IA"
    },
    {
      "zip": "50210",
      "miles": 8.6,
      "city": "New Virginia",
      "state": "IA"
    },
    {
      "zip": "50257",
      "miles": 8.6,
      "city": "Truro",
      "state": "IA"
    },
    {
      "zip": "50222",
      "miles": 10.3,
      "city": "Peru",
      "state": "IA"
    },
    {
      "zip": "50125",
      "miles": 11.1,
      "city": "Indianola",
      "state": "IA"
    },
    {
      "zip": "50211",
      "miles": 11.8,
      "city": "Norwalk",
      "state": "IA"
    }
  ],
  "release": "2026-10-12",
  "attribution": {
    "source": "zipcodes.pro",
    "url": "https://zipcodes.pro/zip/50240",
    "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."
  }
}