{
  "zip": "21757",
  "type": "standard",
  "type_source": "inferred",
  "city": "Keymar",
  "other_place_names": [],
  "state": "MD",
  "state_name": "Maryland",
  "county": {
    "fips": "24013",
    "name": "Carroll County",
    "short_name": "Carroll"
  },
  "counties": [
    {
      "county_fips": "24013",
      "name": "Carroll County",
      "short_name": "Carroll",
      "weight": 0.5235,
      "basis": "land_area"
    },
    {
      "county_fips": "24021",
      "name": "Frederick County",
      "short_name": "Frederick",
      "weight": 0.4765,
      "basis": "land_area"
    }
  ],
  "location": {
    "lat": 39.593861,
    "lng": -77.258139,
    "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": 2671,
    "households": 1018,
    "housing_units": 1072,
    "median_age": 37.8,
    "median_household_income": 100500,
    "median_home_value": 466100,
    "median_rent": 1408,
    "pct_bachelors_plus": 29.5,
    "mean_commute_min": 31.4,
    "density_per_sqmi": 75.9
  },
  "business": {
    "establishments": 64,
    "employees": 457,
    "annual_payroll_thousands": 24356
  },
  "tax": {
    "irs_returns": 1400,
    "irs_agi_thousands": 113847
  },
  "area": {
    "land_sqmi": 35.173,
    "water_sqmi": 0.094
  },
  "nearest_zips": [
    {
      "zip": "21759",
      "miles": 2.4,
      "city": "Ladiesburg",
      "state": "MD"
    },
    {
      "zip": "21775",
      "miles": 2.8,
      "city": "New Midway",
      "state": "MD"
    },
    {
      "zip": "21778",
      "miles": 4,
      "city": "Rocky Ridge",
      "state": "MD"
    },
    {
      "zip": "21798",
      "miles": 4.3,
      "city": "Woodsboro",
      "state": "MD"
    },
    {
      "zip": "21791",
      "miles": 5.6,
      "city": "Union Bridge",
      "state": "MD"
    },
    {
      "zip": "21787",
      "miles": 7.4,
      "city": "Taneytown",
      "state": "MD"
    },
    {
      "zip": "21727",
      "miles": 7.6,
      "city": "Emmitsburg",
      "state": "MD"
    },
    {
      "zip": "21762",
      "miles": 7.8,
      "city": "Libertytown",
      "state": "MD"
    },
    {
      "zip": "21788",
      "miles": 8.3,
      "city": "Thurmont",
      "state": "MD"
    },
    {
      "zip": "21793",
      "miles": 8.6,
      "city": "Walkersville",
      "state": "MD"
    }
  ],
  "release": "2026-10-12",
  "attribution": {
    "source": "zipcodes.pro",
    "url": "https://zipcodes.pro/zip/21757",
    "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."
  }
}