Kim Jong-Un's overwhelming victory to represent his district in North Korea's parliament this weekend — 100 percent turnout, 100 percent of the vote — is an outlier in electoral politics. (To the extent that it seems … suspicious.) But overwhelming support (if not 100 percent) for a candidate even happens here in the United States.
In 2012, 238 counties gave at least 80 percent of their votes to either Mitt Romney or Barack Obama. Of the counties Romney won (over 2,400), 7.6 percent he won with at least 80 percent of the vote. Of his 1,500-plus counties, Obama won 3.43 percent with at least that margin.
Romney's best county was King County, Texas, which he won with 95.9 percent of the votes cast — but there were fewer than 200 votes in total. His widest margin in a county of more than 10,000 votes was Madison County, Idaho, where Romney got 93.3 percent.
Obama's best county was Shannon, South Dakota (somewhat suprisingly), where he got over 93.4 percent of the vote. His widest margin of a county casting more than 10,000 votes was in Washington, DC, which he won with 91.4 percent of the vote.
All of the 80-percent-plus counties are mapped below. You'll notice some geographic delineations.