{
  "zip": "21102",
  "type": "standard",
  "type_source": "inferred",
  "city": "Manchester",
  "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": 0.7666,
      "basis": "land_area"
    },
    {
      "county_fips": "24005",
      "name": "Baltimore County",
      "short_name": "Baltimore",
      "weight": 0.2334,
      "basis": "land_area"
    }
  ],
  "location": {
    "lat": 39.692165,
    "lng": -76.847645,
    "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": 12162,
    "households": 4413,
    "housing_units": 4511,
    "median_age": 44.5,
    "median_household_income": 135069,
    "median_home_value": 392800,
    "median_rent": 1484,
    "pct_bachelors_plus": 34.7,
    "mean_commute_min": 35.4,
    "density_per_sqmi": 299.3
  },
  "business": {
    "establishments": 229,
    "employees": 1297,
    "annual_payroll_thousands": 57543
  },
  "tax": {
    "irs_returns": 5970,
    "irs_agi_thousands": 537469
  },
  "area": {
    "land_sqmi": 40.638,
    "water_sqmi": 0.636
  },
  "nearest_zips": [
    {
      "zip": "21088",
      "miles": 1.8,
      "city": "Lineboro",
      "state": "MD"
    },
    {
      "zip": "17329",
      "miles": 4.6,
      "city": "Glenville",
      "state": "PA"
    },
    {
      "zip": "21074",
      "miles": 4.9,
      "city": "Hampstead",
      "state": "MD"
    },
    {
      "zip": "21053",
      "miles": 7.1,
      "city": "Freeland",
      "state": "MD"
    },
    {
      "zip": "17327",
      "miles": 7.8,
      "city": "Glen Rock",
      "state": "PA"
    },
    {
      "zip": "21155",
      "miles": 8.5,
      "city": "Upperco",
      "state": "MD"
    },
    {
      "zip": "17311",
      "miles": 8.6,
      "city": "Codorus",
      "state": "PA"
    },
    {
      "zip": "17355",
      "miles": 9.3,
      "city": "Railroad",
      "state": "PA"
    },
    {
      "zip": "17354",
      "miles": 9.6,
      "city": "Porters Sideling",
      "state": "PA"
    },
    {
      "zip": "21120",
      "miles": 9.7,
      "city": "Parkton",
      "state": "MD"
    }
  ],
  "release": "2026-10-12",
  "attribution": {
    "source": "zipcodes.pro",
    "url": "https://zipcodes.pro/zip/21102",
    "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."
  }
}