Topeka is located at . According to the 2010 census, Topeka has a total area of, all land.
Demographics
2010 census
As of the census of 2010, there were 1,153 people, 421 households, and 291 families living in the town. The population density was. There were 456 housing units at an average density of. The racial makeup of the town was 94.4% White, 0.3% African American, 1.0% Asian, 1.6% from other races, and 2.7% from two or more races. Hispanic or Latino of any race were 3.6% of the population. There were 421 households of which 43.9% had children under the age of 18 living with them, 50.6% were married couplesliving together, 12.8% had a female householder with no husband present, 5.7% had a male householder with no wife present, and 30.9% were non-families. 26.8% of all households were made up of individuals and 10.2% 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 3.34. The median age in the town was 29.6 years. 33.9% of residents were under the age of 18; 8.7% were between the ages of 18 and 24; 28.2% were from 25 to 44; 21% were from 45 to 64; and 8.2% were 65 years of age or older. The gender makeup of the town was 47.8% male and 52.2% female.
2000 census
As of the census of 2000, there were 1,159 people, 448 households, and 310 families living in the town. The population density was 841.2 people per square mile. There were 482 housing units at an average density of 349.8 per square mile. The racial makeup of the town was 95.34% White, 0.69% Asian, 1.38% from other races, and 2.59% from two or more races. Hispanic or Latino of any race were 2.67% of the population. There were 448 households out of which 37.7% had children under the age of 18 living with them, 49.8% were married couples living together, 12.9% had a female householder with no husband present, and 30.6% were non-families. 26.6% of all households were made up of individuals and 8.3% had someone living alone who was 65 years of age or older. The average household size was 2.59 and the average family size was 3.10. In the town, the population was spread out with 31.1% under the age of 18, 11.4% from 18 to 24, 30.5% from 25 to 44, 17.1% from 45 to 64, and 9.9% who were 65 years of age or older. The median age was 29 years. For every 100 females, there were 95.8 males. For every 100 females age 18 and over, there were 95.1 males. The median income for a household in the town was $37,105, and the median income for a family was $42,232. Males had a median income of $32,356 versus $23,542 for females. The per capita income for the town was $17,269. About 7.3% of families and 9.1% of the population were below the poverty line, including 11.7% of those under age 18 and 10.1% of those age 65 or over.