A simply query to find users in your city or country. Added user links to the original version.
Q&A about the site for electronic hardware hacking enthusiasts
select DISTINCT u.Id [User Link], u.Reputation, u.DisplayName, u.Location, u.AboutMe from (Users as u LEFT JOIN Comments as c on u.id = c.userId) LEFT JOIN Posts as p on c.PostId = p.id where upper(u.Location) like '%##Location##%' AND ( upper(u.AboutMe) like '%##LANG##%' OR upper(p.Tags) like '%##LANG##%' ) order by Reputation desc