{
  "publisher": "ZipNumbers",
  "license": "CC BY 4.0",
  "zip": "37421",
  "city": "Chattanooga",
  "state": "TN",
  "state_slug": "tennessee",
  "county": "Hamilton County",
  "county_fips": "47065",
  "demographics": {
    "population": 52516,
    "median_household_income": 79958,
    "median_home_value": 299600,
    "median_gross_rent": 1313,
    "median_age": 41.1,
    "poverty_pct": 8.7,
    "owner_occupied_pct": 60.6,
    "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": 9.25,
    "components": [
      {
        "level": "state",
        "name": "Tennessee state",
        "rate": 7
      },
      {
        "level": "county",
        "name": "Hamilton County",
        "rate": 2.25
      }
    ],
    "effective_date": "2026-01-01",
    "confidence": "verified",
    "source": "Tennessee Department of Revenue",
    "source_url": "https://www.tn.gov/revenue/taxes/sales-and-use-tax.html",
    "note": "ZIP codes are postal routes, not tax boundaries. Verify at the delivery address for filing."
  },
  "area_codes": [
    "423"
  ],
  "pages": {
    "zip_profile": "https://zipnumbers.com/zips/tennessee/37421",
    "sales_tax": "https://zipnumbers.com/sales-tax/zip/37421"
  },
  "retrieved_from": "https://zipnumbers.com/api/public/zip/37421"
}