People who do not go to church.
This word is neutral, but it might describe a group of people who have different beliefs or habits than people who go to church.
Examples:
Nonchurchgoers do not attend church services.
My neighbors are nonchurchgoers.
Nonchurchgoers have their own ways of spending Sunday mornings.
The park is full of nonchurchgoers on Sunday mornings.
In this town, nonchurchgoers outnumber churchgoers.
Nonchurchgoers have their own community events.