{
  "zip": "78663",
  "type": "standard",
  "type_source": "inferred",
  "city": "Round Mountain",
  "other_place_names": [],
  "state": "TX",
  "state_name": "Texas",
  "county": {
    "fips": "48031",
    "name": "Blanco County",
    "short_name": "Blanco"
  },
  "counties": [
    {
      "county_fips": "48031",
      "name": "Blanco County",
      "short_name": "Blanco",
      "weight": 0.9331,
      "basis": "land_area"
    },
    {
      "county_fips": "48453",
      "name": "Travis County",
      "short_name": "Travis",
      "weight": 0.0377,
      "basis": "land_area"
    },
    {
      "county_fips": "48209",
      "name": "Hays County",
      "short_name": "Hays",
      "weight": 0.0198,
      "basis": "land_area"
    },
    {
      "county_fips": "48053",
      "name": "Burnet County",
      "short_name": "Burnet",
      "weight": 0.0094,
      "basis": "land_area"
    }
  ],
  "location": {
    "lat": 30.415519,
    "lng": -98.311699,
    "source": "gazetteer_internal_point",
    "timezone": "America/Chicago"
  },
  "is_zcta": true,
  "parent_zcta": null,
  "metro": null,
  "demographics": {
    "population": 503,
    "households": 276,
    "housing_units": 288,
    "median_age": 65.4,
    "median_household_income": 168125,
    "median_home_value": 356800,
    "median_rent": 1688,
    "pct_bachelors_plus": 42.7,
    "mean_commute_min": 50.5,
    "density_per_sqmi": 4.6
  },
  "business": {
    "establishments": 32,
    "employees": 134,
    "annual_payroll_thousands": 12020
  },
  "tax": {
    "irs_returns": 470,
    "irs_agi_thousands": 73041
  },
  "area": {
    "land_sqmi": 108.479,
    "water_sqmi": 0.639
  },
  "nearest_zips": [
    {
      "zip": "78657",
      "miles": 9.1,
      "city": "Horseshoe Bay",
      "state": "TX"
    },
    {
      "zip": "78636",
      "miles": 9.6,
      "city": "Johnson City",
      "state": "TX"
    },
    {
      "zip": "78669",
      "miles": 11.4,
      "city": "Spicewood",
      "state": "TX"
    },
    {
      "zip": "78654",
      "miles": 12.4,
      "city": "Marble Falls",
      "state": "TX"
    },
    {
      "zip": "78620",
      "miles": 16.8,
      "city": "Dripping Springs",
      "state": "TX"
    },
    {
      "zip": "78639",
      "miles": 18.7,
      "city": "Kingsland",
      "state": "TX"
    },
    {
      "zip": "78635",
      "miles": 20.1,
      "city": "Hye",
      "state": "TX"
    },
    {
      "zip": "78645",
      "miles": 20.4,
      "city": "Leander",
      "state": "TX"
    },
    {
      "zip": "78738",
      "miles": 20.7,
      "city": "Austin",
      "state": "TX"
    },
    {
      "zip": "78734",
      "miles": 21.8,
      "city": "Austin",
      "state": "TX"
    }
  ],
  "release": "2026-10-12",
  "attribution": {
    "source": "zipcodes.pro",
    "url": "https://zipcodes.pro/zip/78663",
    "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."
  }
}