In the three Maritime provinces, schools were mainly Protestant, and a single Protestant oriented school system was established in each of them.

When the civil war began, the mainly Protestant Sunderland sided with Parliament against the mostly Catholic Newcastle.

After the Reformation Löwen became mainly Protestant, and the Catholic parish was disbanded.

The west of Twente is mainly Protestant.

The Bohemian population was mainly Protestant.

The south and west remained mainly Catholic, while north and east were mainly Protestant.

The remaining 10% are mainly Protestant (of which the Mennonite group is the largest), Mormons, Jewish, and Russian Orthodox.

Zeeman was born in Marken, a small, mainly Protestant town north of Amsterdam, in a pastor's family.

Manhattanville served the farms of this area in the 19th century, and it was mainly Protestant.

James II's ill-advised attempts to Catholicise the army, government and other institutions had proved increasingly unpopular with his (mainly Protestant) subjects.