{
  "zip": "48309",
  "type": "standard",
  "type_source": "inferred",
  "city": "Rochester",
  "other_place_names": [
    "Rochester Hills",
    "Auburn Hills"
  ],
  "state": "MI",
  "state_name": "Michigan",
  "county": {
    "fips": "26125",
    "name": "Oakland County",
    "short_name": "Oakland"
  },
  "counties": [
    {
      "county_fips": "26125",
      "name": "Oakland County",
      "short_name": "Oakland",
      "weight": 1,
      "basis": "land_area"
    }
  ],
  "location": {
    "lat": 42.657213,
    "lng": -83.186577,
    "source": "gazetteer_internal_point",
    "timezone": "America/Detroit"
  },
  "is_zcta": true,
  "parent_zcta": null,
  "metro": {
    "cbsa_code": "19820",
    "name": "Detroit-Warren-Dearborn, MI",
    "type": "metro",
    "csa_code": "220",
    "csa_name": "Detroit-Warren-Ann Arbor, MI"
  },
  "demographics": {
    "population": 30685,
    "households": 11278,
    "housing_units": 11847,
    "median_age": 42.5,
    "median_household_income": 121007,
    "median_home_value": 424600,
    "median_rent": 1686,
    "pct_bachelors_plus": 64.4,
    "mean_commute_min": 22.6,
    "density_per_sqmi": 1971.7
  },
  "business": {
    "establishments": 882,
    "employees": 16075,
    "annual_payroll_thousands": 1138940
  },
  "tax": {
    "irs_returns": 14580,
    "irs_agi_thousands": 1897005
  },
  "area": {
    "land_sqmi": 15.563,
    "water_sqmi": 0.017
  },
  "nearest_zips": [
    {
      "zip": "48308",
      "miles": 3.1,
      "city": "Rochester",
      "state": "MI"
    },
    {
      "zip": "48307",
      "miles": 3.3,
      "city": "Rochester",
      "state": "MI"
    },
    {
      "zip": "48326",
      "miles": 3.6,
      "city": "Auburn Hills",
      "state": "MI"
    },
    {
      "zip": "48098",
      "miles": 4.1,
      "city": "Troy",
      "state": "MI"
    },
    {
      "zip": "48342",
      "miles": 4.6,
      "city": "Pontiac",
      "state": "MI"
    },
    {
      "zip": "48099",
      "miles": 4.9,
      "city": "Troy",
      "state": "MI"
    },
    {
      "zip": "48085",
      "miles": 4.9,
      "city": "Troy",
      "state": "MI"
    },
    {
      "zip": "48306",
      "miles": 5,
      "city": "Rochester",
      "state": "MI"
    },
    {
      "zip": "48340",
      "miles": 5.3,
      "city": "Pontiac",
      "state": "MI"
    },
    {
      "zip": "48304",
      "miles": 5.3,
      "city": "Bloomfield Hills",
      "state": "MI"
    }
  ],
  "release": "2026-10-12",
  "attribution": {
    "source": "zipcodes.pro",
    "url": "https://zipcodes.pro/zip/48309",
    "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."
  }
}