[5] The county has a hot-summer humid continental climate (Dfa) and the hardiness zone is 7a, except in higher areas north of the Interstate 78 and 81 corridor, where it is 6b.The only other time since 1880 that the county has failed to support a Republican was in 1912, when the GOP was mortally divided and Theodore Roosevelt carried it on the Bull Moose ticket.In the 2006 election for U.S. Senate, the county cast 21,756 votes (55.1%) for Republican Rick Santorum and 17,737 (44.9%) for Democrat Bob Casey, Jr., who won the race.In that year's gubernatorial election, the county cast 22,775 votes (57.5%) for Republican Lynn Swann and 16,813 (42.5%) for Democrat Ed Rendell, who won the race.[18] In the 2004 presidential election, the county cast 37,089 votes (66.6%) for Republican George W. Bush and 18,109 (32.5%) for Democrat John Kerry.In that same year's election for U.S. Senate, the county cast 35,336 votes (66.8%) for Republican Arlen Specter, 13,182 for Democrat Joe Hoeffel, 3,320 (6.3%) for Constitution Party candidate Jim Clymer, and 1,083 (2.0%) for Libertarian Betsy Summers.[21] In the 2002 gubernatorial election, the county cast 22,659 votes (62.7%) for Republican Mike Fisher and 12,712 (35.2%) for Democrat Ed Rendell, who won the race.The following cities, boroughs and townships are located in Lebanon County: Census-designated places are geographical areas designated by the U.S. Census Bureau for the purposes of compiling demographic data.
Map of Lebanon County with municipal labels showing cities and boroughs (red), townships (white), and census-designated places (blue)