By the 24th century, replicators seem to be included all around a ship (based on the Enterprise-D), but what about non-starfleet places. Are replicators a standard part of the average human's home in the 24th century?
Very accessible. In DS9 "Blaze of Glory" we hear Eddington ranting about food replicators.
EDDINGTON It may look like chicken, but it still tastes like replicated protein molecules to me.
SISKO If you don't want it, don't eat it.
EDDINGTON Remember that Thanksgiving dinner you cooked for the senior staff last year? How many months did it take you to grow all those vegetables in the hydroponic garden? Every ingredient fresh... real. Though you did put too much tarragon in the stuffing.
SISKO I wasn't aware you were a food critic.
EDDINGTON: I wasn't. Until I joined the Maquis and started eating real food. Food that I'd grown with my own hands. Fresh corn. As sweet as a baby's smile. And tomatoes. Do you know how hard it is to grow tomatoes? There's always too much rain... or not enough. It's too hot, it's too cold. I wonder what happened to those tomato plants. Probably burned to the ground along with everything else.
It seems, replicators are so common you'd have to join the Marquis if you want "real food".
I don't know of any explicit mention in canon, but the EU might expand - but I'd say, within the Federation at least, that replicators are abundant.
As an indirect indicator - Kako is very surprised to hear that O'Brien's mother cooked actual meat rather than replicate meals.
Available enough that their economy has been sufficiently cornered to the point that they can't/don't use money to buy any good or service, let alone food.
It's implicit evidence, but the notion that the Earth of the future has all but sworn off money for internal commerce is directly tied to the prevalence of replicators of all varieties. It's one of the founding principles of a post-scarcity economy; everything, from food to clothing to raw energy, is so freely available and so easily reproduced that there is no longer any reason to engage in financial exchange, because you only need to buy one thing. After that, you implicitly have 99%* of the material items you would ever need.
*...Of course, some things are still rare and precious, and there are those who appreciate hand-made items, or 'real' food from 'real' food sources (animals, grown veggies/fruits, properly brewed beer, etc...) but on the whole, the regular food/water/clothing thing is handled.