 About 6.80% of families and 8.60% of the population were below the poverty line, including 11.10% of those under age 18 and 10.40% of those age 65 or over.Ellis is a staunchly Republican county in presidential elections.The last Democratic presidential candidate to carry the county was Jimmy Carter in 1976, and since 2000, Republican presidential candidates have won with more than two-thirds of the vote.