In 1825, John Mullet was among the first white settlers in Climax, along with Calvin White, and the Farnsworth brothers More Euro-American settlement of this area began in 1838. It was incorporated as a village in 1899. Climax is so known because when Daniel B. Eldred first visited the township he said, "This caps the climax." On December 3, 1896, Climax and the surrounding area was the first community to receive free rural mail service from the U.S. Post Office in the state of Michigan.
As of the census of 2010, there were 767 people, 280 households, and 213 families living in the village. The population density was. There were 303 housing units at an average density of. The racial makeup of the village was 98.3% White, 0.5% African American, 0.1% Asian, 0.3% from other races, and 0.8% from two or more races. Hispanic or Latino of any race were 2.0% of the population. There were 280 households, of which 37.5% had children under the age of 18 living with them, 56.8% were married couplesliving together, 11.8% had a female householder with no husband present, 7.5% had a male householder with no wife present, and 23.9% were non-families. 18.9% of all households were made up of individuals, and 6.5% had someone living alone who was 65 years of age or older. The average household size was 2.74 and the average family size was 3.11. The median age in the village was 37.9 years. 26.5% of residents were under the age of 18; 8.7% were between the ages of 18 and 24; 25.1% were from 25 to 44; 30.3% were from 45 to 64; and 9.4% 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 791 people, 279 households, and 212 families living in the village. The population density was 769.9 per square mile. There were 291 housing units at an average density of 283.2 per square mile. The racial makeup of the village was 96.08% White, 0.88% African American, 0.63% Native American, 1.14% from other races, and 1.26% from two or more races. Hispanic or Latino of any race were 3.16% of the population. There were 279 households, out of which 41.6% had children under the age of 18 living with them, 63.4% were married couples living together, 7.9% had a female householder with no husband present, and 24.0% were non-families. 19.0% of all households were made up of individuals, and 7.2% had someone living alone who was 65 years of age or older. The average household size was 2.84 and the average family size was 3.28. In the village, the population was spread out, with 31.9% under the age of 18, 8.7% from 18 to 24, 30.7% from 25 to 44, 21.1% from 45 to 64, and 7.6% who were 65 years of age or older. The median age was 32 years. For every 100 females, there were 91.1 males. For every 100 females age 18 and over, there were 96.7 males. The median income for a household in the village was $44,464, and the median income for a family was $50,625. Males had a median income of $35,833 versus $27,604 for females. The per capita income for the village was $18,658. About 2.8% of families and 4.7% of the population were below the poverty line, including 5.5% of those under age 18 and none of those age 65 or over.
