{
  "publisher": "ZipNumbers",
  "license": "CC BY 4.0",
  "zip": "57104",
  "city": "Sioux Falls",
  "state": "SD",
  "state_slug": "south-dakota",
  "county": "Minnehaha County",
  "county_fips": "46099",
  "demographics": {
    "population": 27406,
    "median_household_income": 59161,
    "median_home_value": 183700,
    "median_gross_rent": 849,
    "median_age": 34.5,
    "poverty_pct": 14.2,
    "owner_occupied_pct": 43.6,
    "vintage": "2019-2023 ACS 5-year",
    "source": "US Census Bureau, ACS 2019-2023 5-year estimates",
    "source_url": "https://www.census.gov/programs-surveys/acs"
  },
  "sales_tax": {
    "combined_rate": 6.2,
    "components": [
      {
        "level": "state",
        "name": "South Dakota state",
        "rate": 4.2
      },
      {
        "level": "city",
        "name": "City of Sioux Falls",
        "rate": 2
      }
    ],
    "effective_date": "2026-01-01",
    "confidence": "verified",
    "source": "South Dakota Department of Revenue",
    "source_url": "https://dor.sd.gov/businesses/taxes/sales-use-tax/",
    "note": "ZIP codes are postal routes, not tax boundaries. Verify at the delivery address for filing."
  },
  "area_codes": [
    "605"
  ],
  "pages": {
    "zip_profile": "https://zipnumbers.com/zips/south-dakota/57104",
    "sales_tax": "https://zipnumbers.com/sales-tax/zip/57104"
  },
  "retrieved_from": "https://zipnumbers.com/api/public/zip/57104"
}