Loch Lomond is a reservoir built on Newell Creek.
The Western Climate Center reports that Ben Lomond has an average annual rainfall of 52.09 inches and an average annual snowfall of 0.2 inch. January is the coldest month with a normal maximum of 55.9° and a normal minimum of 35.3°. August is the warmest month with a normal maximum of 81.8° and a normal minimum of 48.2°.
As of the censusGR2 of 2000, there were 2,364 people, 873 households, and 577 families residing in the CDP. The population density was 1,086.6/km² (2,802.2/mi²). There were 924 housing units at an average density of 424.7/km² (1,095.3/mi²). The racial makeup of the CDP was 91.16% White, 0.17% African American, 0.68% Native American, 1.65% Asian, 0.13% Pacific Islander, 2.37% from other races, and 3.85% from two or more races. Hispanic or Latino of any race were 6.43% of the population.
There were 873 households out of which 36.4% had children under the age of 18 living with them, 48.2% were married couples living together, 11.6% had a female householder with no husband present, and 33.8% were non-families. 21.9% of all households were made up of individuals and 3.6% had someone living alone who was 65 years of age or older. The average household size was 2.66 and the average family size was 3.09.
In the CDP the population was spread out with 25.9% under the age of 18, 9.0% from 18 to 24, 32.7% from 25 to 44, 27.5% from 45 to 64, and 5.0% who were 65 years of age or older. The median age was 36 years. For every 100 females there were 105.7 males. For every 100 females age 18 and over, there were 100.0 males.
The median income for a household in the CDP was $57,241, and the median income for a family was $59,412. Males had a median income of $40,602 versus $28,042 for females. The per capita income for the CDP was $25,691. About 2.7% of families and 7.3% of the population were below the poverty line, including 1.7% of those under age 18 and none of those age 65 or over.