The Constituency-Level Elections Archive (CLEA)

is a repository of detailed election results at the constituency level for lower chamber and upper chamber legislative elections from around the world.

Our motivation is to preserve and consolidate these valuable data in one comprehensive and reliable resource that is ready for analysis and publicly available at no cost. This public good is expected to be of use to a range of audiences for research, education, and policy-making.

Data & Documentation

Detailed data on legislative election results are available at the constituency level in multiple formats.

Frequently Asked Questions

Have a question about the study or data?

Check the FAQ.


The CLEA bibliography cites working papers, publications, and presentations known to use Daniele Caramani’s Elections in Western Europe since 1815: Electoral Results by Constituencies or public releases of CLEA.


CLEA Release 15 (20220111) includes updates to the Upper Chamber election data.


Overview of CLEA Release 15

CLEA Upper Chamber:
• Dataset now includes 181 election results from 24 countries.
• This release adds 56 new elections from 19 countries.
• We have added 11 new countries: Australia, Brazil, Colombia, Dominican Republic, Italy, Japan, Liberia, Philippines, Poland, Romania, and Uruguay.

The datasets are free and available for download in the following formats: Excel, R, SPSS, and Stata.

We would like to thank our users for bringing errors and new data to our attention. These have been addressed in the latest release, and the list of changes and corrections can be found in the ‘Data and Documentation‘ section of the website.