Its seat is located in the city of Kumla.

The present municipality was formed during the latest nationwide local government reform in Sweden, with the amalgamations taking place in 1966 and 1971.

This is a demographic table based on Kumla Municipality's electoral districts in the 2022 Swedish general election sourced from SVT's election platform, in turn taken from SCB official statistics.

Indicators are in percentage points except population totals and income.

Kumla's three twin towns with the year of its establishing: