Smithville Flats is a census-designated place and hamlet in the town of Smithville, Chenango County, New York, United States. The zipcode is 13841. As of the 2020 census, Smithville Flats had a population of 303.
In the 2020 census, Smithville Flats had 303 people, 164 households, and 158 housing units. The racial demographics were 92.7% White, 1.3% African American, 0.6% Asian, 0.6% from some other race, and 4.6% from two or more races. The median age was 38.4 years old. 11.9% of the population were 65 or older, 9.3% of the population were between the ages of 65 and 74, 2.0% between the ages of 75 and 84, and 0.6% were 85 or older.
The median income of Smithville Flats was $55,938. Families had a median income of $69,063 and non-families had a median income of $29,135. The CDP had a poverty rate of 11.9%. Children had a poverty rate of 20%, adults had a poverty rate of 9.1%, and seniors had a poverty rate of 7.3%.
The ancestry of the CDP was 26.2% Irish, 13.4% American, 11.9% Welsh, 7.6% English, 6.7% German, 3.8% Dutch, 3.5% Italian, and 2.3% West Indian.