I’m coming from a USA point of view, but will welcome input from anywhere else in the world.
Some background:
In the 1800’s, the USA added a new state every three years on average. Most of these were carved out of territories conquered from the indigenous peoples and later Mexico, and were incorporated when the presence of the dominant culture was still very minimal and the territory mostly unsettled. But three (West Virginia, Maine, and Vermont) were actually detached from the claims of previously existing states.
Once we filled in the continental territory of the USA, and gave up on conquering Canada and Mexico (mostly), we stopped.
At the present writing, however, the states west of the Appalachians have added population and developed into rather more established settlements, and the legacy of old divisions leaves us some oddities.
Well, one big oddity:
On the East Coast, a state can be a small area that was a tiny Crown Colony in British times, like Rhode Island, Delaware, or New Hampshire.
West of the Appalachians, states are all larger in area, and except for Alaska and the high, arid, and mostly uninhabited states of the Rockies (and here I really mean Nevada and Wyoming), can encompass a great number of people and several substantial metropolitan areas.
And then there are Texas and California, which are each freakin’ huge.
Locally, we get used to the way our state is put together, and accept that as normal. So to a Rhode Islander, the state capital is relatively close, and the state a small region with a given ethnic identity. To a Californian, the state capital is way away from almost everybody, and parts of the state are so remote you may never go there. I suggest that states like New York, Ohio, Florida, Michigan, and Missouri are more like California than like Rhode Island in this regard.
And then there’s the federal Senate, where each state gets equal representation, and which gets calls for its abolition because Wyoming and California each get two votes.
Well. Maybe we should go back to carving out new states.
My home state of Missouri is large enough that it could reasonably split into three states and still cede some mostly-empty counties to Iowa. I can see pros and cons.
What about you? Would you consider splitting your state or province up? Or merging it with another for administrative purposes?