A sectional center facility (SCF) is a processing and distribution center (P&DC) of the United States Postal Service (USPS) that serves a designated geographical area defined by one or more three-digit ZIP Code prefixes. A sectional center facility routes mail between local post offices, sorting and delivery centers (SDCs), to and from network distribution centers (NDCs), and to and from other sectional center facilities.

Note: Alabama 369 is served by Jackson, Mississippi; 353 is unassigned.

American Samoa is served by the SCF in Honolulu, Hawaii.

Note: AZ 864 served by Las Vegas, Nevada; AZ 865 served by Albuquerque, New Mexico; 854, 858, 861, and 862 are unassigned.

Note: Arkansas 723-724 served by Memphis, Tennessee; Arkansas 718 served by Shreveport, Louisiana.

Note: CA 961 is served by Reno, Nevada; CA 909 and 929 are unassigned.

Note: 066, 068, and 069 are served by Westchester, New York.

Note: Florida 343, 345, and 348 are unassigned. For 340, see Military below.