Lynnville is a city in Jasper County, Iowa, United States.

[6] According to the United States Census Bureau, the city has a total area of 1.11 square miles (2.87 km2), all land.

There were 168 housing units at an average density of 152.9 per square mile (59.0/km2).

Hispanic or Latino persons of any race comprised 1.6% of the population.

23.8% of all households were made up of individuals, 14.4% had someone living alone who was 65 years old or older.

There were 174 housing units at an average density of 156.8 per square mile (60.5/km2).

28.2% of all households were made up of individuals, and 12.3% had someone living alone who was 65 years of age or older.

There were 160 housing units at an average density of 265.9 per square mile (102.7/km2).

28.1% of all households were made up of individuals, and 17.0% had someone living alone who was 65 years of age or older.