Originally called Pine Grove Siding and Pine Grove, the present name honors a local landowner named Whitelaw. A post office called Whitelaw has been in operation since 1892.
As of the census of 2010, there were 757 people, 301 households, and 225 families living in the village. The population density was. There were 314 housing units at an average density of. The racial makeup of the village was 95.4% White, 0.4% African American, 0.7% Native American, 1.7% from other races, and 1.8% from two or more races. Hispanic or Latino of any race were 2.6% of the population. There were 301 households of which 31.2% had children under the age of 18 living with them, 64.1% were married couplesliving together, 6.0% had a female householder with no husband present, 4.7% had a male householder with no wife present, and 25.2% were non-families. 21.3% of all households were made up of individuals and 7% had someone living alone who was 65 years of age or older. The average household size was 2.51 and the average family size was 2.93. The median age in the village was 41.6 years. 23.9% of residents were under the age of 18; 6.7% were between the ages of 18 and 24; 24.8% were from 25 to 44; 31.2% were from 45 to 64; and 13.5% were 65 years of age or older. The gender makeup of the village was 50.3% male and 49.7% female.
2000 census
As of the census of 2000, there were 730 people, 278 households, and 205 families living in the village. The population density was 1,312.0 people per square mile. There were 284 housing units at an average density of 510.4 per square mile. The racial makeup of the village was 99.32% White, 0.27% African American, 0.27% Native American and 0.14% Asian. Hispanic or Latino of any race were 0.55% of the population. There were 278 households out of which 33.1% had children under the age of 18 living with them, 62.9% were married couples living together, 6.8% had a female householder with no husband present, and 25.9% were non-families. 20.5% of all households were made up of individuals and 11.5% had someone living alone who was 65 years of age or older. The average household size was 2.62 and the average family size was 3.02. In the village, the population was spread out with 26.2% under the age of 18, 7.7% from 18 to 24, 30.5% from 25 to 44, 22.9% from 45 to 64, and 12.7% who were 65 years of age or older. The median age was 36 years. For every 100 females, there were 101.7 males. For every 100 females age 18 and over, there were 98.9 males. The median income for a household in the village was $51,029, and the median income for a family was $53,036. Males had a median income of $36,971 versus $25,833 for females. The per capita income for the village was $20,249. About 3.5% of families and 5.4% of the population were below the poverty line, including 5.4% of those under age 18 and 13.9% of those age 65 or over.
