I’m aware that neither CPS nor ASEC is meant to be used for county-level analysis. However, when choosing between the two, is one of them preferred? For example, the fact sheet on differences between CPS and ASEC (see link below) says that ASEC actually surveys more households. Specifically, I’m looking for data on income, demographics and healthcare coverage which ASEC seems to better represent (particularly income and healthcare)
At the same time, here is what I found around county-level analysis:
The CPS data provide reliable estimates at the state level, and for 12 of the largest metropolitan statistical areas. The sample size does not allow proper estimates to be obtained at the county level, and in fact, data are not available for most counties sampled due to confidentiality laws.
The CPS ASEC sample does not include observations for most counties. The sample design provides consistent national-level estimates, but consideration is also given to providing reliable annual state-level estimates of unemployment. Of the more than 3,100 counties in the country, about 1,300 counties are in the sample.
CPS vs ASEC
Differences between the CPS and the CPS ASEC.