At the 2010 census there were 20,564 people, 6,969 households, and 5,362 families living in the township. The population density was 238.6 people per square mile. There were 11,163 housing units at an average density of 129.5/sq mi. The racial makeup of the township was 56.4% White, 27.8% African American, 0.7% Native American, 1.8% Asian, 0.1% Pacific Islander, 8.6% from other races, and 4.6% from two or more races. Hispanic or Latino of any race were 23.3%. There were 6,969 households, 37.6% had children under the age of 18 living with them, 54.3% were married couples living together, 16.6% had a female householder with no husband present, and 23.1% were non-families. 18.5% of households were made up of individuals, and 6.1% were one person aged 65 or older. The average household size was 2.95 and the average family size was 3.35. The age distribution was 28.5% under the age of 18, 61.3% from 18 to 64, and 10.2% 65 or older. The median age was 37.4 years. The median household income was $54,339 and the median family income was $59,139. Males had a median income of $42,813 versus $32,256 for females. The per capita income for the township was $19,816. About 15.1% of families and 17.2% of the population were below the poverty line, including 26.1% of those under age 18 and 4.8% of those age 65 or over.
At the 2000 census there were 15,205 people, 5,101 households, and 4,050 families living in the township. The population density was 177.3 people per square mile. There were 9,376 housing units at an average density of 109.4/sq mi. The racial makeup of the township was 71.58% White, 15.68% African American, 0.28% Native American, 1.01% Asian, 0.07% Pacific Islander, 7.34% from other races, and 4.04% from two or more races. Hispanic or Latino of any race were 15.30%. There were 5,101 households, 42.2% had children under the age of 18 living with them, 63.1% were married couples living together, 11.1% had a female householder with no husband present, and 20.6% were non-families. 16.3% of households were made up of individuals, and 5.8% were one person aged 65 or older. The average household size was 2.98 and the average family size was 3.34. The age distribution was 31.6% under the age of 18, 7.0% from 18 to 24, 28.4% from 25 to 44, 22.4% from 45 to 64, and 10.5% 65 or older. The median age was 36 years. For every 100 females, there were 97.7 males. For every 100 females age 18 and over, there were 93.5 males. The median household income was $46,684 and the median family income was $50,499. Males had a median income of $40,155 versus $22,592 for females. The per capita income for the township was $17,094. About 8.4% of families and 11.8% of the population were below the poverty line, including 15.0% of those under age 18 and 14.2% of those age 65 or over.
Climate
According to the Trewartha climate classification system, Coolbaugh Township has a Temperate Continental climate with warm summers, cold winters and year-around precipitation. Dcbo climates are characterized by at least one month having an average mean temperature ≤, four to seven months with an average mean temperature ≥, all months with an average mean temperature < and no significant precipitation difference between seasons. Although most summer days are comfortably humid in Coolbaugh Township, episodes of heat and high humidity can occur with heat index values >. Since 1981, the highest air temperature was on 07/15/1995, and the highest daily average mean dew point was on 08/01/2006. July is the peak month for thunderstorm activity which correlates with the average warmest month of the year. The average wettest month is September which correlates with tropical storm remnants during the peak month of the Atlantic hurricane season. Since 1981, the wettest calendar day was 6.74 inches on 09/30/2010. During the winter months, the plant hardiness zone is 5b with an average annual extreme minimum air temperature of. Since 1981, the coldest air temperature was on 01/22/1984. Episodes of extreme cold and wind can occur with wind chill values <. The average snowiest month is January which correlates with the average coldest month of the year. Ice storms and large snowstorms depositing ≥ 12 inches of snow occur nearly every year, particularly during nor’easters from December through March.
Ecology
According to the A. W. Kuchler U.S. potential natural vegetation types, Coolbaugh Township would have a dominant vegetation type of Northern Hardwood with a dominant vegetation form of Northern hardwood forest. The peak spring bloom typically occurs in early-May and peak fall color usually occurs in early-October. The plant hardiness zone is 5b with an average annual extreme minimum air temperature of.
