Kappa is a village in Woodford County, Illinois, United States. The population was 227 at the 2010 census, up from 170 in 2000. It is part of the Peoria, Illinois Metropolitan Statistical Area. In 1833 Thomas Dixon became the first settler in the Kappa area. Over the next few years, other settlers moved in around the area, and eventually a railroad was built through the area. On May 23, 1853, rail service began, and postal service began. The first postmaster, William Jones, appointed the name Montrose, but the Illinois Central Railroad preferred Kappa. Kappa is the tenth letter in the Greek alphabet, and was applied to the town because it was the tenth town between Dunleith (modern-day East Dubuque, Illinois) and Bloomington. Kappa sits on the north side of the Mackinaw River. Approximately five miles to the southeast is Lake Bloomington, while five miles to the southwest is Evergreen Lake. Since its inception, the railroad line from East Dubuque to Bloomington has been decommissioned. In the early 1900s, SBI Route 2 was founded, and then changed to U.S. Route 51. U.S. 51 now bypasses the town to the west, leaving Illinois Route 251 as the main north–south road through town. Geography Kappa is located at (40.676439, -89.009349). According to the 2010 census, Kappa has a total area of , all land. Demographics As of the census of 2000, there were 170 people, 63 households, and 48 families residing in the village. The population density was . There were 67 housing units at an average density of . The racial makeup of the village was 97.06% White, 1.18% Native American, 1.76% from other races. Hispanic or Latino of any race were 2.35% of the population. There were 63 households, out of which 47.6% had children under the age of 18 living with them, 58.7% were married couples living together, 9.5% had a female householder with no husband present, and 23.8% were non-families. 20.6% of all households were made up of individuals, and 6.3% had someone living alone who was 65 years of age or older. The average household size was 2.70 and the average family size was 3.08. In the village, the population was spread out, with 32.4% under the age of 18, 5.9% from 18 to 24, 34.1% from 25 to 44, 19.4% from 45 to 64, and 8.2% who were 65 years of age or older. The median age