Does the country publish the statistical overview of voter lists online?

Brazil

Answer

Yes, at the municipal level
Yes, at the constituency level
Yes, at the national level

Source

Data has been confirmed by TSE on 28 June 2017

Comment

The voter statistics is available on the web. The search can be done by sex, age bands, literacy, party affiliations, precincts, municipalities, states, geographical region. The web link is here. Another site, but only for elections 2012/2014/2016 is here.