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.

UAA Mail Statistics Announcements

Announcements
04/27/2018
Monthly UAA Statistics by UAA Reason Report Modified beginning with April FY18

The Monthly UAA Statistics by UAA Reason Report will be modified beginning with April FY18.

Announcements
04/27/2018
Quarterly UAA Statistics by Mailing Industry Report Modified beginning with FY18 Quarter 3

The Quarterly UAA Statistics by Mailing Industry report beginning with FY18 quarter 3 has been modified.

Quarterly UAA Statistics by Mailing Industry

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
Data Files
01/15/2020
Data Files
01/15/2020
Data Files
01/15/2020
Data Files
01/15/2020
Data Files
12/03/2018
Data Files
12/03/2018
Data Files
04/02/2018
Data Files
01/02/2018
Data Files
10/03/2017
Data Files
01/31/2017
Undeliverable-as-Addressed (UAA) Statistics by Mailing Industry Quarterly Report (Q4 FY16)

This report provides UAA Reason statistics by mailing industry type for FY16 Q4. Industries represented include Financial, Marketing, Healthcare, Government, and others.

Monthly UAA Statistics by UAA Reason

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.

Data Files
01/02/2020
December 2019 Nixie Volume

This spreadsheet contains UAA statistics for December 2019.

Data Files
12/02/2019
November 2019 Nixie Volume

This spreadsheet contains UAA statistics for November 2019.

Data Files
11/01/2019
October 2019 Nixie Volume

This spreadsheet contains UAA statistics for October 2019.

Data Files
10/01/2019
September 2019 Nixie Volume

This spreadsheet contains UAA statistics for September 2019.

Data Files
09/01/2019
August 2019 Nixie Volume

This spreadsheet contains UAA statistics for August 2019.

Data Files
08/01/2019
July 2019 Nixie Volume

This spreadsheet contains UAA statistics for July 2019.

Data Files
07/01/2019
June 2019 Nixie Volume

This spreadsheet contains UAA statistics for June 2019.

Data Files
06/03/2019
May 2019 Nixie Volume

This spreadsheet contains UAA statistics for May 2019.

Data Files
05/01/2019
April 2019 Nixie Volume

This spreadsheet contains UAA statistics for April 2019.

Data Files
04/01/2019
March 2019 Nixie Volume

This spreadsheet contains UAA statistics for March 2019.

Data Files
03/01/2019
February 2019 Nixie Volume

This spreadsheet contains UAA statistics for February 2019.

Data Files
02/01/2019
January 2019 Nixie Volume

This spreadsheet contains UAA statistics for January 2019.

Data Files
01/02/2019
December 2018 Nixie Volume

This spreadsheet contains UAA statistics for December 2018.

Data Files
12/03/2018
November 2018 Nixie Volume

This spreadsheet contains UAA statistics for November 2018.

Data Files
11/01/2018
October 2018 Nixie Volume

This spreadsheet contains UAA statistics for October 2018.

Data Files
10/01/2018
September 2018 Nixie Volume

This spreadsheet contains UAA statistics for September 2018.

Data Files
09/10/2018
August 2018 Nixie Volume

This spreadsheet contains UAA statistics for August 2018.

Data Files
08/01/2018
July 2018 Nixie Volume

This spreadsheet contains UAA statistics for July 2018.

Data Files
07/02/2018
June 2018 Nixie Volume

This spreadsheet contains UAA statistics for June 2018.

Data Files
06/01/2018
May 2018 Nixie Volume

This spreadsheet contains UAA statistics for May 2018.

Data Files
05/02/2018
April 2018 Nixie Volume

This spreadsheet contains UAA statistics for April 2018.

Data Files
04/02/2018
March 2018 Nixie Volume

This spreadsheet contains UAA statistics for March 2018.

Data Files
03/01/2018
February 2018 Nixie Volume

This spreadsheet contains UAA statistics for February 2018.

Data Files
02/01/2018
January 2018 Nixie Volume

This spreadsheet contains UAA statistics for January 2018.

Data Files
12/01/2017
November 2017 Nixie Volume

This spreadsheet contains UAA statistics for November 2017.

Data Files
11/01/2017
October 2017 Nixie Volume

This spreadsheet contains UAA statistics for October 2017.

Data Files
10/03/2017
September 2017 Nixie Volume

This spreadsheet contains UAA statistics for September 2017.

Data Files
09/01/2017
August 2017 Nixie Volume

This spreadsheet contains UAA statistics for August 2017.

Data Files
08/01/2017
July 2017 Nixie Volume

This spreadsheet contains UAA statistics for July 2017.

Data Files
06/01/2017
May 2017 Nixie Volume

This spreadsheet contains UAA statistics for May 2017.

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.

UAA Mail: FY2019

Data Files
01/28/2020
Volume Tables: PARS 2019

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

Data Files
01/28/2020
Class Tables: PARS 2019

This spreadsheet contains 64 class tables that provide cost and volume by class of mail, presort category, and shape from FY2019.

Data Files
01/28/2020
Base Tables: PARS 2019

This spreadsheet contains 44 base tables focusing on postal operations cost and volume of handling UAA mail from FY2019.

Data Files
01/28/2020
ACS Tables: PARS 2019

This spreadsheet contains 12 tables outlining ACS Volume and Cost for UAA Mail from FY2019.

UAA Mail: FY2018

Data Files
02/01/2019
Volume Tables: PARS 2018

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

Data Files
02/01/2019
Class Tables: PARS 2018

This spreadsheet contains 64 class tables that provide cost and volume by class of mail, presort category, and shape from FY2018.

Data Files
02/01/2019
Base Tables: PARS 2018

This spreadsheet contains 44 base tables focusing on postal operations cost and volume of handling UAA mail from FY2018.

Data Files
02/01/2019
ACS Tables: PARS 2018

This spreadsheet contains 12 tables outlining ACS Volume and Cost for UAA Mail from FY2018.

UAA Mail: FY2017

Data Files
12/18/2017
Volume Tables: PARS 2017

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

Data Files
01/18/2018
Class Tables: PARS 2017

This spreadsheet contains 64 class tables that provide cost and volume by class of mail, presort category, and shape from FY2017.

Data Files
01/18/2018
Base Tables: PARS 2017

This spreadsheet contains 44 base tables focusing on postal operations cost and volume of handling UAA mail from FY2017.

Data Files
01/18/2018
ACS Tables: PARS 2017

This spreadsheet contains 12 tables outlining ACS Volume and Cost for UAA Mail from FY2017.

UAA Mail: FY2016

Data Files
01/30/2017
Volume Tables: PARS 2016

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

Data Files
01/30/2017
Class Tables: PARS 2016

This spreadsheet contains 64 class tables that provide cost and volume by class of mail, presort category, and shape from FY2016.

Data Files
01/30/2017
Base Tables: PARS 2016

This spreadsheet contains 44 base tables focusing on postal operations cost and volume of handling UAA mail from FY2016.

Data Files
01/30/2017
ACS Tables: PARS 2016

This spreadsheet contains 12 tables outlining ACS Volume and Cost for UAA Mail from FY2016.

UAA Mail: FY2015

Data Files
01/07/2016
Volume Tables: PARS 2015

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

Data Files
01/07/2016
Class Tables: PARS 2015

This spreadsheet contains 64 class tables that provide cost and volume by class of mail, presort category, and shape from FY2015.

Data Files
01/07/2016
Base Tables: PARS 2015

This spreadsheet contains 44 base tables focusing on postal operations cost and volume of handling UAA mail from FY2015.

Data Files
01/07/2016
ACS Tables: PARS 2015

This spreadsheet contains 12 tables outlining ACS Volume and Cost for UAA Mail from FY2015.

UAA Mail: FY2014 - FY2008

Data Files
UAA Mail: FY2014

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Data Files
UAA Mail: FY2013

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Data Files
UAA Mail: FY2012

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Data Files
UAA Mail: FY2011

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Data Files
UAA Mail: FY2010

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Data Files
UAA Mail: FY2009

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Data Files
UAA Mail: FY2008

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UAA Mail: FY2004

Data Files
01/10/2014
Data Files
01/10/2014
Data Files
01/10/2014
Data Files
01/10/2014
Data Files
01/06/2014
Data Files
06/26/2006
Data Files
01/10/2014
Data Files
01/10/2014
Data Files
06/26/2006