{
  "zip": "21528",
  "type": "unknown",
  "type_source": "inferred",
  "city": "Eckhart Mines",
  "other_place_names": [],
  "state": "MD",
  "state_name": "Maryland",
  "county": {
    "fips": "24001",
    "name": "Allegany County",
    "short_name": "Allegany"
  },
  "counties": [],
  "location": {
    "lat": 39.6528,
    "lng": -78.9014,
    "source": "geonames",
    "timezone": "America/New_York"
  },
  "is_zcta": false,
  "parent_zcta": "21532",
  "metro": {
    "cbsa_code": "19060",
    "name": "Cumberland, MD-WV",
    "type": "micro",
    "csa_code": null,
    "csa_name": null
  },
  "demographics": {
    "population": null,
    "households": null,
    "housing_units": null,
    "median_age": null,
    "median_household_income": null,
    "median_home_value": null,
    "median_rent": null,
    "pct_bachelors_plus": null,
    "mean_commute_min": null,
    "density_per_sqmi": null
  },
  "business": {
    "establishments": null,
    "employees": null,
    "annual_payroll_thousands": null
  },
  "tax": {
    "irs_returns": null,
    "irs_agi_thousands": null
  },
  "area": {
    "land_sqmi": null,
    "water_sqmi": null
  },
  "nearest_zips": [
    {
      "zip": "21543",
      "miles": 3.2,
      "city": "Midlothian",
      "state": "MD"
    },
    {
      "zip": "21545",
      "miles": 4.3,
      "city": "Mount Savage",
      "state": "MD"
    },
    {
      "zip": "21532",
      "miles": 4.4,
      "city": "Frostburg",
      "state": "MD"
    },
    {
      "zip": "21542",
      "miles": 5,
      "city": "Midland",
      "state": "MD"
    },
    {
      "zip": "21505",
      "miles": 5.1,
      "city": "Cumberland",
      "state": "MD"
    },
    {
      "zip": "15564",
      "miles": 6.1,
      "city": "Wellersburg",
      "state": "PA"
    },
    {
      "zip": "21556",
      "miles": 6.3,
      "city": "Pinto",
      "state": "MD"
    },
    {
      "zip": "21524",
      "miles": 6.5,
      "city": "Corriganville",
      "state": "MD"
    },
    {
      "zip": "21539",
      "miles": 7,
      "city": "Lonaconing",
      "state": "MD"
    },
    {
      "zip": "21501",
      "miles": 7.4,
      "city": "Cumberland",
      "state": "MD"
    }
  ],
  "release": "2026-10-12",
  "attribution": {
    "source": "zipcodes.pro",
    "url": "https://zipcodes.pro/zip/21528",
    "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."
  }
}