nationally
adv.happening across an entire country rather than just in one city or area.
adv.occurring or existing throughout the whole of a country. Often used to describe the scope of laws, trends, or media broadcasts.
“The new law will be applied nationally starting next month.”
“The election results were broadcast nationally so that every citizen could follow the count in real time.”
“While the pilot program was initially restricted to urban centers, its overwhelming success prompted the government to implement the health initiative nationally by the end of the fiscal year.”
Typically placed at the end of a clause or before the adjective it modifies.
Usage nationally representative
From national + -ly.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.