# Merging IPUMS USA (ACS) and CPS monthly by group of households **URL:** \ **Category:** General\ **Created:** [March 14, 2021, 4:12pm UTC](https://forum.ipums.org/t/merging-ipums-usa-acs-and-cps-monthly-by-group-of-households/4038 "2021-03-14T16:12:33Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![MEHLIKA\_OZSOY](https://avatars.discourse-cdn.com/v4/letter/m/82dd89/32.png) [@MEHLIKA\_OZSOY](https://forum.ipums.org/u/MEHLIKA_OZSOY)\ **Post date:** [March 14, 2021, 4:12pm UTC](https://forum.ipums.org/t/merging-ipums-usa-acs-and-cps-monthly-by-group-of-households/4038/1 "2021-03-14T16:12:33Z")
Dear IPUMS, Is it possible to merge CPS monthly with ACS yearly data? I know they are different data sets and one is monthly and the other is yearly and cannot be merged fully but, yet is it possible to detect if a specific family in monthly CPS, let’s say 2013-march, is in the 2013 ACS yearly also? Thanks ---
**Author:** ![KariWilliams](https://avatars.discourse-cdn.com/v4/letter/k/82dd89/32.png) [@KariWilliams](https://forum.ipums.org/u/KariWilliams)\ **Post date:** [March 16, 2021, 8:26pm UTC](https://forum.ipums.org/t/merging-ipums-usa-acs-and-cps-monthly-by-group-of-households/4038/2 "2021-03-16T20:26:21Z")
The CPS and ACS are separate surveys with different target populations and sample designs; they do not interview the same households or persons. While it is theoretically possible that a household could be in both, it is unlikely and there is no way of systematically linking the household between the two surveys. ---
**Author:** ![MEHLIKA\_OZSOY](https://avatars.discourse-cdn.com/v4/letter/m/82dd89/32.png) [@MEHLIKA\_OZSOY](https://forum.ipums.org/u/MEHLIKA_OZSOY)\ **Post date:** [March 16, 2021, 8:32pm UTC](https://forum.ipums.org/t/merging-ipums-usa-acs-and-cps-monthly-by-group-of-households/4038/3 "2021-03-16T20:32:12Z")
Oh I understood it better, Thank you a lot !