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U.S. Department of Health and Human Services
Health Resources and Services Administration
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MUA/Ps: Dictionary

TYPE: Geographic make-up of designation.


 Whole County


 Census Tract


 MCD (Minor Civil Division - a Census- recognized sub county area)


 State name with the 2-digit numeric FIPs state code


 County name with the 3-digit numeric FIPs county code


 5-digit numeric state and county FIPs code combined


 7-digit (including decimal place) census tract number

REGION: Each designation is assigned to a state. Each state is assigned to a region.

  • Region I: Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont
  • Region II: New Jersey, New York, Puerto Rico, Virgin Islands
  • Region III: Delaware, District of Columbia, Maryland, Pennsylvania, Virginia, West Virginia
  • Region IV: Alabama, Florida, Georgia, Kentucky, Mississippi, North Carolina, South Carolina, Tennessee
  • Region V: Illinois, Indiana, Minnesota, Michigan, Ohio, Wisconsin
  • Region VI: Arkansas, Louisiana, New Mexico, Oklahoma, Texas
  • Region VII: Iowa, Kansas, Missouri, Nebraska
  • Region VIII: Colorado, Montana, North Dakota, South Dakota, Utah, Wyoming
  • Region IX: Arizona, California, Hawaii, Nevada, American Samoa, CNMI, FSM, Guam, Republic of Palau, Republic of Marshall Islands, Trust Territories
  • Region X: Alaska, Idaho, Oregon, Washington

MCDCODE: 3-Digit Minor Census Division Code

MCDNAME: A name assigned to each Minor Census Division Code

SERVICEAREANAME: A name assigned to most MUA/Ps

SCORE: The Index of Medical Underservice (IMU) score. The lowest score (highest need) is 0; and the highest score (lowest need) is 100.

DESIGNATIONTYPE: The type of designation.


Area (designated for the Resident Civilian Population)


Population (designated for a specific population)


An MUP designated at the request of a State Governor based to documented unusual local conditions and barriers to accessing personal health services.

UPDATEDATE: The date that the designation was last updated

DESIGNATIONDATE: Date that the designation was originally designated

OLDMUAID: No longer used. 

ID: 5-digit number assigned to each designation

MUA_SRT: No longer used.

CURRENTSTATUS: Designation status.

  • D = Designated
  • W = Withdrawn

SERVICEAREATYPE: Geographic make-up of service area.

  • WH = whole county
  • PC = partial county
  • MC = multi-county
  • MS = multi-state