In my experience, there is no difference at all.
I've lived in both the North and South, as an 'out' atheist.
The responses to me have basically been the same and amounted to,
"you're going to burn in hell for not believing in god".
In the South, they'll say "bless your heart", in the North, it's "fuck you".
They are one and the same thing.

One lives in the south and one lives in the north.

I really think you’re stretching things to call it a culture. It’s more of a philosophical position.

It’s easier to be openly atheist in communities that don’t ostracize you for dancing with reality, Bigger cities are more tolorant than rural areas. I don’t think you can draw a line, it’s pockets.

Yes.They talk funny up there. ☺

I don't think of it that way. We who don't believe aren't really a group. We don't really have any specific cultures, because we are all different. We're not trying to be willingly shoved into a box like believers.

Having lived around the country/world...the location might be different, but there will always be factions of people who will scorn you and even harm you if you do not believe in any religious teachings...you have to find your people and stick with them to support your beliefs. While we are "coming out" more and more, it is still a bit of an underground culture for good reason.

That’s a good question. I think the difference may be “y’all and you’s“.

In the South, AFAIK, "Where do you worship?" is a perfectly polite question. In NYC where I live, it would be considered rude.

I grew up in the west. I didn't come to the south until just before my 21st birthday. The difference is to me that in the west there seemed to be a lot more of the "live and let live" attitude, where here in the south there seems to be a lot more... what's the right word or phrase... perhaps a less authentic "hospitable" sweetness and faith? Maybe?

I was actually drawn in by the southern charm at first but it didn't seem to take long to realize there was a falseness to it. If you stepped out of expectations on any level you were suddenly ostracized. For me it was religion. I wasn't a baptist so I was either treated like I was bringing in the plague or was smothered with sweetness by those just wanting me to come to their church. When those of the inviting side realized I wasn't going, period, they pretty much disappeared also.

Don't get me wrong, I don't mind. I honestly rather enjoy being left alone to do my own thing. I just found that extremely unappealing on the deeper levels.

I guess all that was to say, here in the south it's met with a bit of disdain. Back west it didn't seem to matter much.

I’m a few miles from the Mason Dixon line and there are a ton of churches here. I’ve been callled some of the worst things by Northerners and Southerners. Ignorance knows no borders.

There are vast cultural differences between people of the northern hemisphere and people from the southern hemisphere. Oh wait ... you're talking about the good ole USofA? The thing that unites the North and South is their shared sense of privelege and isolationist political stance ?

Purely anecdotal and even then limited exposure, but so far Atheists in Utah seem to be a little more aggressive and hard-line liberal than atheists I found in other areas.

That could be a reaction to how much LDS influenced daily life and politics until recently, they still influence politics too much but IME it's not hard to ignore them in daily life.

I tend to accept that we only have one thing ing in common. That is the lack of evidence for a god or gods. However the cultural differences between northerners and southerners question is most fascinating.

From what I see there are far more atheists in the north than the south, due to culture difference. But, up north (northern Wisconsin) we just have a lot of churches with just as many if not more bars to even the score ??

The thing to be atheist is not believing in gods there are so many different things that can be different

I grew up in the bible belt of north Florida, and lived in the north for almost 25 years. I see no difference. There may be differences in he route, but non-belief is non-belief.

Location.

There's little difference geographically between one person standing just north of the Mason-Dixon line and another standing just to the south of it. Yet, an Eskimo and central-American Indian have the same thing as the two standing by the Mason-Dixon line, in regard to atheism...the quest for reality.

First and Foremost check out the Southern Christian Leadership Religious Congregations that contain most of the Voting Errant that exists in America. How can or do you describe a northern from a southern? If you are an Atheist then you are what you proclaim. Amen. Sorry I used a religious term but you are going to catch flack on both sides of the border. We exist on the principles that deny Race, Color or Creed, but accept all Genders, Nationalities, and Life Styles.