In a large but limited area, more than local but smaller than entirety. (Generally smaller than a nation.)(adverb)
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Use "regionally" in a sentence
"Arts organizations have a major impact on the service industry, as cultural tourism brings people in regionally, nationally, and sometimes internationally."
"On many other technology fronts it always seems to be that Asia, specially regionally, is rather ahead of us in the USA if for no other reason than our clunky corporate need to control access and charge monthly fees for every possible service, but that's another story."
"For instance, with their taxes and consumer dollars, all Canadians have borne the costs of maintaining the viability of certain regionally based industries."