The Question and Answer section for The Lottery and Other Stories is a great resource to ask questions, find answers, and discuss the novel.
This is really asking for your opinion rather than mine. I recall a sense of nervous apprehension as Tess Hutchinson appears into the crowd making excuses about being late because she had to do the dishes.
The writer makes an initial mention of stones - "Bobby Martin had already stuffed his pockets full of stones..." - but then not again until the end of the story. What might have been the purpose in doing this?
This would involve the literary technique of foreshadowing.
I would describe the community as traditional, unchanging, stuck in time, and complacent.