Undeliverable-as-Addressed (UAA) Mail Statistics

The USPS provides an on-going study of Undeliverable-as-Addressed (UAA) mail. This study provides comprehensive information on the volumes, characteristics and costs of processing UAA mail.

What is UAA Mail?

UAA mail is all mail that cannot be delivered to the name and address specified on the mailpiece, and must be forwarded, returned to sender or properly treated as waste, as authorized for the class of mail and ancillary service endorsement on the mailpiece. The actions required to process UAA mail create additional cost for the Postal Service and have an impact on postal operations. In addition, UAA mail affects the timeliness of mail delivery. Mail may be considered UAA because:

  • The individual, family, or business to which it is addressed has moved
  • The address is incomplete, incorrect, or illegible
  • The addressee is unknown or deceased
  • The addressee refuses or fails to claim the mail
  • The necessary postage has not been paid

While all UAA causes are considered and reported, the primary focus of the UAA mail study is on the address-quality-related reasons; that is, UAA occurring because the addressee has moved, or because the address is incomplete, incorrect or illegible.

UAA Mail Statistics by Industry Type

Have you ever wondered how your undeliverable as addressed mail volume compares to others in the same industry? A report has been added that provides UAA Reason statistics by mailing industry type. Industries represented include Financial, Marketing, Healthcare, Government, and others. Access this report below.

UAA Mail Study Tables

The study is broken into four primary spreadsheets: (1) ACS Volume and Cost (12 tables), (2) Base Tables focusing on postal operations cost and volume of handling UAA mail (44 tables), (3) Class Tables that provides cost and volume by class of mail, presort category and then by shape (64 tables), (4) Volume Tables that provides summary data by class of mail, shape, presort category, and disposition of UAA by Local vs. CFS sites (4 tables).

In the FY2004 group, you will find two datasets of UAA information. One set is the actual 2004 data called "PrePARS" and the other ("PostPARS") is an estimation of what UAA cost and volume will be in FY2008 after full deployment of PARS. Also included is the PRC testimony describing each dataset.

Quarterly UAA Statistics by Mailing Industry

Data Files
10/02/2024
Data Files
07/02/2024
Data Files
04/02/2024
Data Files
01/03/2024
Data Files
10/02/2023
Data Files
07/03/2023
Data Files
04/03/2023
Data Files
01/03/2023
Data Files
10/03/2022
Data Files
07/05/2022
Data Files
04/04/2022
Data Files
01/03/2022
Data Files
10/04/2021
Data Files
07/02/2021
Data Files
04/02/2021
Data Files
03/19/2021
Data Files
03/19/2021
Data Files
07/02/2020
Data Files
07/02/2020
Data Files
01/15/2020

Monthly UAA Statistics by UAA Reason

Data Files
10/01/2024
September 2024 Nixie Volume

This spreadsheet contains the UAA statistics for September 2024.

Data Files
09/03/2024
August 2024 Nixie Volume

This spreadsheet contains the UAA statistics for August 2024.

Data Files
08/01/2024
July 2024 Nixie Volume

This spreadsheet contains the UAA statistics for July 2024.

Data Files
07/01/2024
June 2024 Nixie Volume

This spreadsheet contains the UAA statistics for June 2024.

Data Files
06/03/2024
May 2024 Nixie Volume

This spreadsheet contains the UAA statistics for May 2024.

Data Files
05/01/2024
April 2024 Nixie Volume

This spreadsheet contains the UAA statistics for April 2024.

Data Files
04/02/2024
March 2024 Nixie Volume

This spreadsheet contains the UAA statistics for March 2024.

Data Files
03/01/2024
February 2024 Nixie Volume

This spreadsheet contains the UAA statistics for February 2024.

Data Files
02/01/2024
January 2024 Nixie Volume

This spreadsheet contains the UAA statistics for January 2024.

Data Files
01/03/2024
December 2023 Nixie Volume

This spreadsheet contains the UAA statistics for December 2023.

Data Files
12/01/2023
November 2023 Nixie Volume

This spreadsheet contains the UAA statistics for November 2023.

Data Files
11/01/2023
October 2023 Nixie Volume

This spreadsheet contains the UAA statistics for October 2023.

Data Files
10/02/2023
September 2023 Nixie Volume

This spreadsheet contains the UAA statistics for September 2023.

Data Files
09/01/2023
August 2023 Nixie Volume

This spreadsheet contains the UAA statistics for August 2023.

Data Files
08/01/2023
July 2023 Nixie Volume

This spreadsheet contains the UAA statistics for July 2023.

Data Files
07/03/2023
June 2023 Nixie Volume

This spreadsheet contains the UAA statistics for June 2023.

Data Files
06/01/2023
May 2023 Nixie Volume

This spreadsheet contains the UAA statistics for May 2023.

Data Files
05/01/2023
April 2023 Nixie Volume

This spreadsheet contains the UAA statistics for April 2023.

Data Files
04/03/2023
March 2023 Nixie Volume

This spreadsheet contains the UAA statistics for March 2023.

Data Files
03/01/2023
February 2023 Nixie Volume

This spreadsheet contains the UAA statistics for February 2023.

Data Files
02/01/2023
January 2023 Nixie Volume

This spreadsheet contains the UAA statistics for January 2023.

Data Files
01/03/2023
December 2022 Nixie Volume

This spreadsheet contains the UAA statistics for December 2022.

Data Files
12/01/2022
November 2022 Nixie Volume

This spreadsheet contains the UAA statistics for November 2022.

Data Files
11/01/2022
October 2022 Nixie Volume

This spreadsheet contains the UAA statistics for October 2022.

Data Files
10/03/2022
September 2022 Nixie Volume

This spreadsheet contains the UAA statistics for September 2022.

Data Files
09/01/2022
August 2022 Nixie Volume

This spreadsheet contains the UAA statistics for August 2022.

Data Files
08/01/2022
July 2022 Nixie Volume

This spreadsheet contains the UAA statistics for July 2022.

Data Files
07/01/2022
June 2022 Nixie Volume

This spreadsheet contains the UAA statistics for June 2022.

Data Files
06/01/2022
May 2022 Nixie Volume

This spreadsheet contains the UAA statistics for May 2022.

Data Files
05/02/2022
April 2022 Nixie Volume

This spreadsheet contains the UAA statistics for April 2022.

Data Files
04/01/2022
March 2022 Nixie Volume

This spreadsheet contains the UAA statistics for March 2022.

Data Files
03/01/2022
February 2022 Nixie Volume

This spreadsheet contains the UAA statistics for February 2022.

Data Files
02/01/2022
January 2022 Nixie Volume

This spreadsheet contains the UAA statistics for January 2022.

Data Files
01/03/2022
December 2021 Nixie Volume

This spreadsheet contains the UAA statistics for December 2021.

Data Files
12/01/2021
November 2021 Nixie Volume

This spreadsheet contains the UAA statistics for November 2021.

Data Files
11/01/2021
October 2021 Nixie Volume

This spreadsheet contains the UAA statistics for October 2021.

Data Files
10/01/2021
September 2021 Nixie Volume

This spreadsheet contains the UAA statistics for September 2021.

Data Files
09/01/2021
August 2021 Nixie Volume

This spreadsheet contains the UAA statistics for August 2021.

Data Files
08/02/2021
July 2021 Nixie Volume

This spreadsheet contains the UAA statistics for July 2021.

Data Files
07/01/2021
June 2021 Nixie Volume

This spreadsheet contains the UAA statistics for June 2021.

Data Files
06/17/2021
May 2021 Nixie Volume

This spreadsheet contains the UAA statistics for May 2021.

Data Files
06/17/2021
April 2021 Nixie Volume

This spreadsheet contains the UAA statistics for April 2021.

Data Files
04/02/2021
March 2021 Nixie Volume

This spreadsheet contains the UAA statistics for March 2021.

Data Files
04/02/2021
February 2021 Nixie Volume

This spreadsheet contains UAA statistics for February 2021.

Data Files
06/17/2021
January 2021 Nixie Volume

This spreadsheet contains UAA statistics for January 2021.

Data Files
01/04/2021
December 2020 Nixie Volume

This spreadsheet contains UAA statistics for December 2020.

Data Files
12/01/2020
November 2020 Nixie Volume

This spreadsheet contains UAA statistics for November 2020.

Data Files
11/02/2020
October 2020 Nixie Volume

This spreadsheet contains UAA statistics for October 2020.

Data Files
10/01/2020
September 2020 Nixie Volume

This spreadsheet contains UAA statistics for September 2020.

Data Files
09/01/2020
August 2020 Nixie Volume

This spreadsheet contains UAA statistics for August 2020.

Data Files
08/03/2020
July 2020 Nixie Volume

This spreadsheet contains UAA statistics for July 2020.

Data Files
07/01/2020
June 2020 Nixie Volume

This spreadsheet contains UAA statistics for June 2020.

Data Files
06/01/2020
May 2020 Nixie Volume

This spreadsheet contains UAA statistics for May 2020.

Data Files
05/01/2020
April 2020 Nixie Volume

This spreadsheet contains UAA statistics for April 2020.

Data Files
04/01/2020
March 2020 Nixie Volume

This spreadsheet contains UAA statistics for March 2020.

Data Files
03/02/2020
February 2020 Nixie Volume

This spreadsheet contains UAA statistics for February 2020.

Data Files
02/03/2020
January 2020 Nixie Volume

This spreadsheet contains UAA statistics for January 2020.

UAA Mail Roll-Up

Data Files
12/18/2023
Undeliverable-as-Addressed (UAA) Mail Roll-Up 1998-2023

This spreadsheet provides a breakdown of Total UAA mail by mail class from FY1998 thru FY2023.

UAA Mail Labels

Fact Sheets
03/07/2018
Fact Sheets
03/07/2018
Fact Sheets
03/07/2018
Fact Sheets
03/07/2018

UAA Mail: FY2023

Data Files
12/18/2023
Volume Tables: PARS 2023

This spreadsheet contains 3 volume tables that provide summary data by class of mail, shape, presort category, and disposition of UAA Mail.

Data Files
12/18/2023
Class Tables: PARS 2023

This spreadsheet contains 64 class tables that provide cost and volume by class of mail, presort category, and shape from FY2023.

Data Files
12/18/2023
Base Tables: PARS 2023

This spreadsheet contains 44 base tables focusing on postal operations, cost, and volume of handling UAA mail from FY2023.

Data Files
12/18/2023
ACS Tables: PARS 2023

This spreadsheet contains 12 tables outlining ACS volume and cost for UAA Mail from FY2023.

UAA Mail: FY2022

Data Files
12/30/2022
Volume Tables: PARS 2022

This spreadsheet contains 3 volume tables that provide summary data by class of mail, shape, presort category, and disposition of UAA Mail.

Data Files
12/30/2022
Class Tables: PARS 2022

This spreadsheet contains 64 class tables that provide cost and volume by class of mail, presort category, and shape from FY2022.

Data Files
12/30/2022
Base Tables: PARS 2022

This spreadsheet contains 44 base tables focusing on postal operations, cost, and volume of handling UAA mail from FY2022.

Data Files
12/30/2022
ACS Tables: PARS 2022

This spreadsheet contains 12 tables outlining ACS volume and cost for UAA Mail from FY2022.

UAA Mail: FY2021

Data Files
02/28/2022
Volume Tables: PARS 2021

This spreadsheet contains 3 volume tables that provide summary data by class of mail, shape, presort category, and disposition of UAA Mail.

Data Files
02/28/2022
Class Tables: PARS 2021

This spreadsheet contains 64 class tables that provide cost and volume by class of mail, presort category, and shape from FY2021.

Data Files
02/28/2022
Base Tables: PARS 2021

This spreadsheet contains 44 base tables focusing on postal operations, cost, and volume of handling UAA mail from FY2021.

Data Files
02/28/2022
ACS Tables: PARS 2021

This spreadsheet contains 12 tables outlining ACS volume and cost for UAA Mail from FY2021.

UAA Mail: FY2020

Data Files
01/29/2021
Volume Tables: PARS 2020

This spreadsheet contains 3 volume tables that provide summary data by class of mail, shape, presort category, and disposition of UAA Mail.

Data Files
01/29/2021
Class Tables: PARS 2020

This spreadsheet contains 64 class tables that provide cost and volume by class of mail, presort category, and shape from FY2020.

Data Files
01/29/2021
Base Tables: PARS 2020

This spreadsheet contains 44 base tables focusing on postal operations, cost, and volume of handling UAA mail from FY2020.

Data Files
01/29/2021
ACS Tables: PARS 2020

This spreadsheet contains 12 tables outlining ACS volume and cost for UAA Mail from FY2020.