I think atheists and agnostics generally tend to be more left-leaning because conservative views more often entail an allegiance to traditions like religious practice — but that doesn't mean there aren't a fair number of conservative atheists as well, only that the balance seems to be tilted toward the left.

As for intelligence, that's debatable. It may be more likely that intelligent people think critically about religion, but lack of belief doesn't guarantee intelligence — and, to be fair, a lot of religious people are quite smart. I think religion maintains a psychological/emotional hold on people, so it's not necessarily a matter of limited intellect.

I would guess that the majority of agnostics and atheists are both intelligent and left-leaning. They are people who do not automatically accept dogma, tradition, or authority. They ten to be more critical thinkers and people who ask questions.

I am agnotic, and I am both liberal and conservative, depending upon the issue. I don't meet many people who can walk that line.

I have encountered all types on this site, we cover the whole spectrum. United by lack of belief in a deity.

I'm a socialist.

My politics/thinking has revolved around what I call 6 basic human needs as things we owe each other by the nature of our common humanity: Food, Shelter, Clothing, Basic Income, Education, and Health Care.

Most, for sure, but not all. I just saw something today about a conservative atheist organization reiterating their support for Trump. So, by that, this group seems to be neither liberal nor intelligent.
Some of this relationship is correlation - people who are intelligent, curious, empathic, willing to question what they are told by authority, are more likely to be liberal and also are more likely to be atheists, by way of logic and reason.
Others may arrive at atheism by other means - anger at god, a lack of belief in ANYTHING. This doesn’t require much in the way of intelligence, reason or empathy.

The nonreligious tend to be more liberal than the general populace, but conservative ones do exist. [pewresearch.org] Education also appears to significantly higher. [pewresearch.org]

And, in my case, left-handed, as well.

Well, I am an atheist and left-handed. A follower of Karl Marx and Timothy Leary, an admirer of Albert Schweitzer and Albert Einstein, a great fan of Betty Friedan and a slew of disreputable rock n' rollers.

nah dumb people can be found everywhere

Left leaning perhaps...as for the rest, Highly variable.

Yes and I am also left handed lol

Kauva,I think you are correct.I am very left leaning but not very academici intelligent that I am not sure,I leave that to others to judge me,but over all I think Agnostics and Athiests are left leaning and more intelligent than religious types.otherwise why would they believe in a tooth fairy called god.

yes most seem intelligent but i stand upright

Most? Dunno, I've met a lot of really horrible atheists that are the exact same as the hateful and hypocritical Christian zealots, and use no logic.

However that said, I also live in the heart of one of the worst red state hell to exist, and have not met many others of us. So I cannot say yes most are for sure, but I'm confident

I can only speak to the frequencies, but if one looks at the data gathered across national surveys approximately 50-60% of non-theists identify as liberal and 50-55% of non-theists have either a bachelor's degree or a graduate degree. Compare this to the general population where about 30-35% identify as liberal and only 35-40% have a bachelor's or graduate degree. Take from that what you will but as I see it our odds to be liberal and have a degree (which is usually a marker for intelligence) are probably much greater than the general population.

There is a large group of atheists who are extremely conservative. They are Libertarians and some are on this site.

One might accuse you of using an oxymoron.

Since I've never met them all ... can't say.

I can't speak for anyone else, I was brought up christian, I take the good from it but am an agnostic. I consider myself fairly inteligent, very creative and my politics are right of centre.

I'm the founder of the conservative atheists group here, we have 25 very intelligent members, that number is growing daily.

Yes statistically speaking and from my own personal observation. They by definition admit there humanity something right wing religious people are not too privy to.

I am in the uk but labour to the core, never been anything else, havent ever beeen anything else but agnostic either - I was in my youth and up to forties - a big fan of demonstrations- My children seemed to get in the swing of it too when they were old enough to get out there and protest- bit too old now with creaky jointy hips, but I always vote.socialist.