{
  "zip": "45503",
  "type": "standard",
  "type_source": "inferred",
  "city": "Springfield",
  "other_place_names": [
    "Northridge"
  ],
  "state": "OH",
  "state_name": "Ohio",
  "county": {
    "fips": "39023",
    "name": "Clark County",
    "short_name": "Clark"
  },
  "counties": [
    {
      "county_fips": "39023",
      "name": "Clark County",
      "short_name": "Clark",
      "weight": 1,
      "basis": "land_area"
    }
  ],
  "location": {
    "lat": 39.965081,
    "lng": -83.767539,
    "source": "gazetteer_internal_point",
    "timezone": "America/New_York"
  },
  "is_zcta": true,
  "parent_zcta": null,
  "metro": {
    "cbsa_code": "44220",
    "name": "Springfield, OH",
    "type": "metro",
    "csa_code": "212",
    "csa_name": "Dayton-Springfield-Kettering, OH"
  },
  "demographics": {
    "population": 32638,
    "households": 14202,
    "housing_units": 15403,
    "median_age": 41.1,
    "median_household_income": 59595,
    "median_home_value": 168200,
    "median_rent": 892,
    "pct_bachelors_plus": 19.8,
    "mean_commute_min": 23.3,
    "density_per_sqmi": 1868.8
  },
  "business": {
    "establishments": 450,
    "employees": 7084,
    "annual_payroll_thousands": 264445
  },
  "tax": {
    "irs_returns": 15150,
    "irs_agi_thousands": 849431
  },
  "area": {
    "land_sqmi": 17.465,
    "water_sqmi": 3.204
  },
  "nearest_zips": [
    {
      "zip": "45501",
      "miles": 3.4,
      "city": "Springfield",
      "state": "OH"
    },
    {
      "zip": "45505",
      "miles": 4.4,
      "city": "Springfield",
      "state": "OH"
    },
    {
      "zip": "45372",
      "miles": 5,
      "city": "Tremont City",
      "state": "OH"
    },
    {
      "zip": "45504",
      "miles": 5.3,
      "city": "Springfield",
      "state": "OH"
    },
    {
      "zip": "45506",
      "miles": 5.4,
      "city": "Springfield",
      "state": "OH"
    },
    {
      "zip": "45502",
      "miles": 7.4,
      "city": "Springfield",
      "state": "OH"
    },
    {
      "zip": "43010",
      "miles": 8.1,
      "city": "Catawba",
      "state": "OH"
    },
    {
      "zip": "45369",
      "miles": 9.2,
      "city": "South Vienna",
      "state": "OH"
    },
    {
      "zip": "45349",
      "miles": 9.3,
      "city": "North Hampton",
      "state": "OH"
    },
    {
      "zip": "45319",
      "miles": 9.9,
      "city": "Donnelsville",
      "state": "OH"
    }
  ],
  "release": "2026-10-12",
  "attribution": {
    "source": "zipcodes.pro",
    "url": "https://zipcodes.pro/zip/45503",
    "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."
  }
}