There are many ways to adjust zcta data "down to" blockgroups.  This simplest way to do this is to scale by the factor  block group population/ zcta population.  However you can do much better than this.  You can build a model (multiway tabulation…

Additional comment.  If you want people living alone with/without a phone you will need to use the PUMS (microdata) file.  PUMS files don't go down to the county level only to the PUMA level (public use microdata area) These have to be at least 100,000…

If you used the ACS PUMS data you could create a similar result to the CHAS data. You'd just create a new variable that only populates once if any of the four conditions were met. 

Thank you for your response! This is very helpful perspective.

I should have mentioned, despite using this formula found in the PUMS accuracy document, I am studying a few aggregated census tracts in my city.  Consequently, my data is indeed limited to…

If you’re using R, tidycensus has tools to download and analyze PUMS data walker-data.com/.../pums-data.html

Juan:

Diana's recommendations are totally spot-on / correct. A county level tabulation on households by owner/renter tenure by race/ethnicity of householder by household income level, is just not (directly) available from the ACS.

I would recommend…

Brittany, use PUMS data with the three Dane County PUMAS for geo from 2017-21 ACS.  You'll find Hmong in variable RAC2P- code 46.  I just ran this recently, so I know it's available.  Please contact me if you need help doing this.  eric

Dear Derek,

Another thought. PUMAs may or may not cross county lines. For example Suffolk County MA comprises exactly 5 PUMAs. But Norfolk County MA contains tracts where the corresponding PUMA crosses county lines.  If the counties that you are looking…

Can I use PUMS to get data by county by race/ethnicity? Single parent households with children, -by county- by race/ethnicity ?

1. Census does not produce some tables at the block group level for certain population characteristics deemed sensitive. Disability has been listed as a sensitive topic since the first 5-year disability tables in 2012.

2. I think at one point there was…