how to use METFIPS


#1

This is a follow up question. I understand that Metfips is change over time.

I interested in data from 2005 to 2016. so I checked the “Codes” from the data description page.

And I realize that in this time period, the code has changed one time at 2014. And I find the following webpage:

Metropolitan area codes: May 2014 onward:

https://cps.ipums.org/cps/codes/metfi…

Metropolitan area codes: May 2004-April 2014:

https://cps.ipums.org/cps/codes/metfi…

I don’t know how to use this information. How do I match the codes in two pages?


#2

METFIPS provides the original metropolitan codes for each respondent’s residence. Because both these codes and the classification of metropolitan areas change over time, METFIPS is a difficult variable to use when analyzing samples across several years. The METAREA variable uses a standard coding system across time, and although terminology for metropolitan areas and the classification of specific areas changes over time, the general concept is consistent: a metropolitan area consists of a large population center and adjacent communities that have a high degree of economic and social interaction.

I hope this helps.