{
  "zip": "21029",
  "type": "standard",
  "type_source": "inferred",
  "city": "Clarksville",
  "other_place_names": [
    "Columbia",
    "Fulton"
  ],
  "state": "MD",
  "state_name": "Maryland",
  "county": {
    "fips": "24027",
    "name": "Howard County",
    "short_name": "Howard"
  },
  "counties": [
    {
      "county_fips": "24027",
      "name": "Howard County",
      "short_name": "Howard",
      "weight": 1,
      "basis": "land_area"
    }
  ],
  "location": {
    "lat": 39.21356,
    "lng": -76.959392,
    "source": "gazetteer_internal_point",
    "timezone": "America/New_York"
  },
  "is_zcta": true,
  "parent_zcta": null,
  "metro": {
    "cbsa_code": "12580",
    "name": "Baltimore-Columbia-Towson, MD",
    "type": "metro",
    "csa_code": "548",
    "csa_name": "Washington-Baltimore-Arlington, DC-MD-VA-WV-PA"
  },
  "demographics": {
    "population": 13607,
    "households": 4056,
    "housing_units": 4124,
    "median_age": 43.1,
    "median_household_income": 243542,
    "median_home_value": 912100,
    "median_rent": 3501,
    "pct_bachelors_plus": 81.4,
    "mean_commute_min": 32.4,
    "density_per_sqmi": 804.3
  },
  "business": {
    "establishments": 401,
    "employees": 3928,
    "annual_payroll_thousands": 214930
  },
  "tax": {
    "irs_returns": 6100,
    "irs_agi_thousands": 1478728
  },
  "area": {
    "land_sqmi": 16.917,
    "water_sqmi": 0.332
  },
  "nearest_zips": [
    {
      "zip": "21041",
      "miles": 1.8,
      "city": "Ellicott City",
      "state": "MD"
    },
    {
      "zip": "21150",
      "miles": 1.8,
      "city": "Simpsonville",
      "state": "MD"
    },
    {
      "zip": "20777",
      "miles": 2.7,
      "city": "Highland",
      "state": "MD"
    },
    {
      "zip": "21036",
      "miles": 2.9,
      "city": "Dayton",
      "state": "MD"
    },
    {
      "zip": "20862",
      "miles": 3.8,
      "city": "Brinklow",
      "state": "MD"
    },
    {
      "zip": "21737",
      "miles": 4.3,
      "city": "Glenelg",
      "state": "MD"
    },
    {
      "zip": "21044",
      "miles": 4.4,
      "city": "Columbia",
      "state": "MD"
    },
    {
      "zip": "20759",
      "miles": 4.4,
      "city": "Fulton",
      "state": "MD"
    },
    {
      "zip": "20861",
      "miles": 5,
      "city": "Ashton",
      "state": "MD"
    },
    {
      "zip": "20833",
      "miles": 5.5,
      "city": "Brookeville",
      "state": "MD"
    }
  ],
  "release": "2026-10-12",
  "attribution": {
    "source": "zipcodes.pro",
    "url": "https://zipcodes.pro/zip/21029",
    "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."
  }
}