{
  "publisher": "ZipNumbers",
  "license": "CC BY 4.0",
  "zip": "80231",
  "city": "Denver",
  "state": "CO",
  "state_slug": "colorado",
  "county": "Denver County",
  "county_fips": "08031",
  "demographics": {
    "population": 35297,
    "median_household_income": 73961,
    "median_home_value": 489900,
    "median_gross_rent": 1727,
    "median_age": 34,
    "poverty_pct": 14.8,
    "owner_occupied_pct": 38.5,
    "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": 8.81,
    "components": [
      {
        "level": "state",
        "name": "Colorado state",
        "rate": 2.9
      },
      {
        "level": "city",
        "name": "City and County of Denver",
        "rate": 4.81
      },
      {
        "level": "district",
        "name": "Regional Transportation District (RTD)",
        "rate": 1
      },
      {
        "level": "district",
        "name": "Scientific and Cultural Facilities District",
        "rate": 0.1
      }
    ],
    "effective_date": "2026-01-01",
    "confidence": "verified",
    "source": "Colorado Department of Revenue",
    "source_url": "https://tax.colorado.gov/sales-use-tax",
    "note": "ZIP codes are postal routes, not tax boundaries. Verify at the delivery address for filing."
  },
  "area_codes": [
    "303",
    "720"
  ],
  "pages": {
    "zip_profile": "https://zipnumbers.com/zips/colorado/80231",
    "sales_tax": "https://zipnumbers.com/sales-tax/zip/80231"
  },
  "retrieved_from": "https://zipnumbers.com/api/public/zip/80231"
}