# Interpreting 1906 county-level population data

**URL:** <https://forum.ipums.org/t/interpreting-1906-county-level-population-data/4373>\
**Category:** NHGIS\
**Created:** [November 4, 2021, 2:18pm UTC](https://forum.ipums.org/t/interpreting-1906-county-level-population-data/4373 "2021-11-04T14:18:03Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Carly\_Levitz](https://avatars.discourse-cdn.com/v4/letter/c/f08c70/32.png) [@Carly\_Levitz](https://forum.ipums.org/u/Carly_Levitz)\
**Post date:** [November 4, 2021, 2:18pm UTC](https://forum.ipums.org/t/interpreting-1906-county-level-population-data/4373/1 "2021-11-04T14:18:03Z")

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In the 1906 Census of Religious Bodies: Religious Bodies Data [States & Counties] dataset, there are two columns (AZ8001 and AZ8002). I’m looking for county-level population data, what does each column mean? What data should I use for total population?

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**Author:** ![Ivan\_Strahof](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.ipums.org/ivan_strahof/32/626_2.png) [@Ivan\_Strahof](https://forum.ipums.org/u/Ivan_Strahof)\
**Post date:** [November 9, 2021, 1:16am UTC](https://forum.ipums.org/t/interpreting-1906-county-level-population-data/4373/2 "2021-11-09T01:16:46Z")

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Your extract should have included a codebook with a data dictionary that defines all of the selected variables. Checking the codebook, it notes that columns AZ8001 and AZ8002 are the county-level total populations for 1900 and 1910, respectively.