# 2010-2014 ACS sample size

**URL:** <https://forum.ipums.org/t/2010-2014-acs-sample-size/1530>\
**Category:** General\
**Created:** [January 4, 2017, 7:18pm UTC](https://forum.ipums.org/t/2010-2014-acs-sample-size/1530 "2017-01-04T19:18:00Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![scottschubert10](https://avatars.discourse-cdn.com/v4/letter/s/779978/32.png) [@scottschubert10](https://forum.ipums.org/u/scottschubert10)\
**Post date:** [January 4, 2017, 7:18pm UTC](https://forum.ipums.org/t/2010-2014-acs-sample-size/1530/1 "2017-01-04T19:18:00Z")

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I am attempting to work fith data from the 2010-2014 5 year ACS. Downloading the extract from the IPUMS site I notice a total sample size of 15,552,144, while the technical documentation from teh ACS states a sample size of 15,719,324; after subtracting the Puerto Rico Community responses, I am still left with 15,636,088. Can you please explain the discrepancy? The source I am referencing is page 1 of the following document:

[https://www2.census.gov/programs-surveys/acs/tech\_docs/pums/accuracy/2010\_2014AccuracyPUMS.pdf](https://www2.census.gov/programs-surveys/acs/tech_docs/pums/accuracy/2010_2014AccuracyPUMS.pdf)