{
  "zip": "22031",
  "type": "standard",
  "type_source": "inferred",
  "city": "Fairfax",
  "other_place_names": [
    "Mantua",
    "Merrifield",
    "Oakton",
    "Woodburn",
    "Long Branch",
    "Wakefield",
    "Vienna"
  ],
  "state": "VA",
  "state_name": "Virginia",
  "county": {
    "fips": "51059",
    "name": "Fairfax County",
    "short_name": "Fairfax"
  },
  "counties": [
    {
      "county_fips": "51059",
      "name": "Fairfax County",
      "short_name": "Fairfax",
      "weight": 0.8239,
      "basis": "land_area"
    },
    {
      "county_fips": "51600",
      "name": "Fairfax city",
      "short_name": "Fairfax city",
      "weight": 0.1761,
      "basis": "land_area"
    }
  ],
  "location": {
    "lat": 38.85892,
    "lng": -77.260273,
    "source": "gazetteer_internal_point",
    "timezone": "America/New_York"
  },
  "is_zcta": true,
  "parent_zcta": null,
  "metro": {
    "cbsa_code": "47900",
    "name": "Washington-Arlington-Alexandria, DC-VA-MD-WV",
    "type": "metro",
    "csa_code": "548",
    "csa_name": "Washington-Baltimore-Arlington, DC-MD-VA-WV-PA"
  },
  "demographics": {
    "population": 37276,
    "households": 14825,
    "housing_units": 15431,
    "median_age": 35.3,
    "median_household_income": 134577,
    "median_home_value": 723600,
    "median_rent": 2258,
    "pct_bachelors_plus": 73.6,
    "mean_commute_min": 28.9,
    "density_per_sqmi": 5230.3
  },
  "business": {
    "establishments": 1545,
    "employees": 27080,
    "annual_payroll_thousands": 2044581
  },
  "tax": {
    "irs_returns": 17790,
    "irs_agi_thousands": 2197038
  },
  "area": {
    "land_sqmi": 7.127,
    "water_sqmi": 0.052
  },
  "nearest_zips": [
    {
      "zip": "22116",
      "miles": 1.6,
      "city": "Merrifield",
      "state": "VA"
    },
    {
      "zip": "22081",
      "miles": 1.7,
      "city": "Merrifield",
      "state": "VA"
    },
    {
      "zip": "22082",
      "miles": 2.1,
      "city": "Merrifield",
      "state": "VA"
    },
    {
      "zip": "22038",
      "miles": 2.3,
      "city": "Fairfax",
      "state": "VA"
    },
    {
      "zip": "20122",
      "miles": 2.4,
      "city": "Centreville",
      "state": "VA"
    },
    {
      "zip": "20153",
      "miles": 2.4,
      "city": "Chantilly",
      "state": "VA"
    },
    {
      "zip": "20192",
      "miles": 2.4,
      "city": "Herndon",
      "state": "VA"
    },
    {
      "zip": "20195",
      "miles": 2.4,
      "city": "Reston",
      "state": "VA"
    },
    {
      "zip": "20196",
      "miles": 2.4,
      "city": "Reston",
      "state": "VA"
    },
    {
      "zip": "22009",
      "miles": 2.4,
      "city": "Burke",
      "state": "VA"
    }
  ],
  "release": "2026-10-12",
  "attribution": {
    "source": "zipcodes.pro",
    "url": "https://zipcodes.pro/zip/22031",
    "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."
  }
}