31. New Mexico
> Reddest county: Lea County
Despite a majority of New Mexico’s votes going to Obama, Romney won 73.7% of the 2012 votes cast in Lea County, the highest share of any county in New Mexico. The state’s 2nd District, which covers the southern half of the state and includes Lea County, is represented by Stevan Pearce, the only Republican of the state’s five delegates to Congress.
32. New York
> Reddest county: Allegany County
While a majority of Allegany County voted for Romney in the 2012 presidential election, the county’s voting record in congressional elections has not always supported Republicans. In two of the last five elections, county voters favored a Democrat to represent New York’s 23rd District. Republican Rep. Tom Reed II currently holds the seat. As in many other Republican-leaning counties, Allegany County residents are predominantly white, with nearly 95% of residents identifying solely as white.
33. North Carolina
> Reddest county: Yadkin County
While Romney garnered majority support in North Carolina during the 2012 presidential election, only three of North Carolina’s 13 representatives in the House are Democrats. Yadkin County residents are among the most conservative. Three-quarters of the county’s nearly 17,000 votes were cast for Romney in 2012. Additionally, the county is represented by Rep. Virginia Foxx of the 5th District, who ranked among the most conservative members of Congress in separate studies by the National Journal and the American Conservative Union.
34. North Dakota
> Reddest county: Dunn County
Romney won 74.6% of the votes cast in Dunn County in 2012, the highest share of any county in North Dakota. One of just a handful of states with only a single congressional district, competition for House representation is steep. Democrat Earl Pomeroy was defeated by Republican Rick Berg in 2010 after holding the seat for nine terms. Rather than seek re-election to the House, Berg unsuccessfully challenged Democrat Sen. Heidi Heitkamp for one of the state’s two Senate seats. Republican Rep. Kevin Cramer currently represents North Dakota in the House.
> Reddest county: Mercer County
Romney won 76.6% of the 2012 votes cast in Mercer County, the highest share of any county in Ohio. In addition, all three of the congressional districts making up parts of the country are represented by Republicans, including, until October 2015, former Speaker of the House Rep. John Boehner. Like many other Republican-leaning counties, more than 96% of Mercer County’s residents identify as white, well above the national composition.