Cumberland is drained by the Conodoguinet Creek, which winds its way west-to-east across the county into the Susquehanna. Climate Almost all of Cumberland has a hot-summer humid continental climate (Dfa) and its hardiness zone is 6b except in much of the eastern portion where it is 7a. Average monthly temperatures in Lemoyne range from 29.9° F in January to 74.9° F in July, in Carlisle they range from 29.8° F in January to 75.2° F in July, and in Shippensburg they range from 29.6° F in January to 74.6° F in July. The latest temperature averages show some low-lying eastern areas of the county to have a humid subtropical climate (Cfa.) Adjacent counties Perry County (north) Dauphin County (east) York County (southeast) Adams County (south) Franklin County (southwest) Major highways State protected areas Colonel Denning State Park Kings Gap Environmental Education and Training Center Pine Grove Furnace State Park Demographics As of the census of 2000, there were 213,674 people, 83,015 households, and 56,118 families residing in the county. The population density was 388 people per square mile (150/km2). There were 86,951 housing units at an average density of 158 per square mile (61/km2). The racial makeup of the county was 94.40% White, 2.36% Black or African American, 0.13% Native American, 1.67% Asian, 0.04% Pacific Islander, 0.43% from other races, and 0.97% from two or more races. 1.35% of the population were Hispanic or Latino of any race. 35.3% were of German, 10.6% American, 10.1% Irish, 7.5% English and 6.8% Italian ancestry. 94.7% spoke English and 1.4% Spanish as their first language. There were 83,015 households, out of which 29.50% had children under the age of 18 living with them, 56.50% were married couples living together, 8.00% had a female householder with no husband present, and 32.40% were non-families. 26.70% of all households were made up of individuals, and 10.30% had someone living alone who was 65 years of age or older. The average household size was 2.41 and the average family size was 2.92. In the county, the population was spread out, with 22.00% under the age of 18, 10.60% from 18 to 24, 28.50% from 25 to 44, 24.10% from 45 to 64, and 14.90% who were 65 years of age or older. The median age was 38 years. For every 100 females, there were 95.20 males. For every 100 females age 18 and over, there were 92.70