I'm really not positive how much we spend in a month, but I would say it's between $300 and $400 (I really should figure it out! But I am spoiled - I just turn in receipts to dh and essentially he lets me know if we need to hold it on spending for a while or not) for our family of four. I am a pretty frugal person, but it's also important for me to get as much organic as possible. We are all vegetarian, so I always figure that some of the cost that I might spend on meat can be diverted to organics.
We are members of a buying club. That is extremely helpful! I can get, for example, Edensoy Rice/Soy milk for just over a dollar a box when I buy it by the case. The Edensoy Soymilk is under $2 a box and it is about $2.39 in the grocery stores around here.
I'm in Minnesota and we have Whole Foods, but we also have co-ops. The co-op is closer to me - and I prefer to shop there as it is member owned and operated - but it is still a half hour away!
What I don't get thru the buying club and the coop, I get at either a large grocery store (cheaper, but 20 minutes away) or at the local, smaller place - close, but almost as expensive as the coop and hardly any organics.
The local store is actually moving to a larger location near enough to my house for me to walk. So, environmentally speaking, it would be wonderful to walk to the store - and I still think I will for any individual items I may need. But I'll end up sticking to the coop for most of my needs I think. It's weird - I can walk to buy foods that originated thousands of miles away, or I can drive 25 miles to purchase food grown and shipped from local growers.
Ah, well. BTW, any time I think about how much money I am spending on food, I think about a few things:
1) the money I am saving by NOT visiting the doctor
2) the huge percentage of wages it costs people in other families in other countries to feed themselves. We don't like to spend money on food; we like to have money for more "fun" things. But we really do live in the lap of luxury compared to many in the world.
So, I am thankful that I can choose good foods and clean water for my family (though I am angry that the condition of the "food" most people accept as food is so poor that I have to drive all over creation to find the good stuff) and I am thankful that I DO have disposable income leftover - even if it is a modest amount.