Blairsburg is a city in Hamilton County, Iowa, United States.

[3] According to the United States Census Bureau, the city has a total area of 0.65 square miles (1.68 km2), all land.

There were 81 housing units at an average density of 126.2 per square mile (48.7/km2).

There were 93 housing units at an average density of 143.1 per square mile (55.3/km2).

21.2% of all households were made up of individuals, and 5.9% had someone living alone who was 65 years of age or older.

There were 92 housing units at an average density of 142.5 per square mile (55.0/km2).

18.2% of all households were made up of individuals, and 10.2% had someone living alone who was 65 years of age or older.

None of the families and 0.9% of the population were living below the poverty line, including no under eighteens and 6.3% of those over 64.