EEUU » MARYLAND » SOCIAL-SECURITY-ADMIN » 21290

ZIP Code 21290 - Social-security-admin, MARYLAND

Detailed information about ZIP code 21290 located in Social-security-admin, Maryland. This postal code covers unique areas with a population of an undefined number of residents.

About 21290 ZIP Code Area

The ZIP code 21290 is part of the USPS (United States Postal Service) system serving the Social-security-admin area. This code ensures efficient mail delivery and geographic organization within Maryland.

Código Postal MARYLAND city SOCIAL-SECURITY-ADMIN - zip code Estados Unidos USA
ZIP Code (Zip Code) - Representación de área del código postal de los correos de los Estados Unidos.

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Código Postal EEUU - MARYLAND - SOCIAL-SECURITY-ADMIN - 21290

ZIP Code 21290 - Social-security-admin, MARYLAND

Detailed information about ZIP code 21290 located in Social-security-admin, Maryland. This postal code covers unique areas with a population of an undefined number of residents.

About 21290 ZIP Code Area

The ZIP code 21290 is part of the USPS (United States Postal Service) system serving the Social-security-admin area. This code ensures efficient mail delivery and geographic organization within Maryland.

City Name Zip Code Type Population
Baltimore, MD PRIMARY 21290 UNIQUE indefined
Social Security Admin, MD IMPROPER 21290 UNIQUE indefined
City Name Zip Code Type
Baltimore, MD PRIMARY 21290 UNIQUE
Social Security Admin, MD IMPROPER 21290 UNIQUE
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Definitions of Status

  • PRIMARY: Refers to the main name of the city, typically its official designation. Although the city might have an ACCEPTABLE alternative name, the primary name remains the official one.
  • ACCEPTABLE: Indicates a suitable alternative city name. Commonly abbreviated city names are often listed as unacceptable because abbreviations are not considered an acceptable city name format.
  • IMPROPER/NOT ACCEPTABLE: Denotes that an inappropriate city name was entered or received based on the provided information.
  • UNIQUE: Assigned to a business, government agency, or entity with a significant mail volume. This designation depends on the average daily volume of letter-sized mail received, the availability of ZIP code numbers in the postal area, and a cost-benefit analysis by the postal service.