The rural municipality Timrå was made a market town (köping) in 1947.

The present municipality was created in 1971 when Timrå was amalgamated with Hässjö.

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

[3] In total there were 17,904 residents, including 13,943 Swedish citizens of voting age.

Indicators are in percentage points except population totals and income.