A central location is useful — if the website explains the reach properly
Westmeath's central position is one of its commercial advantages.
The county's own investment material emphasises its central location, infrastructure and the different roles of Athlone and Mullingar. Athlone's economic strategy is explicitly designed to attract businesses, talent, investment and visitors to the regional centre.
For an individual small business, the useful lesson is simpler:
your market may be larger than the town on your address.
If your customers genuinely come from Athlone, Mullingar, Moate, Kinnegad and surrounding counties, the website should make that service area understandable.
But I would not solve that by creating a cloned SEO page for every place on the map.
A stronger approach is normally to start with the important services and the actual buying journey. Explain the geographic reach where it matters. Add a dedicated location page only when there is enough distinct customer need and local information to justify it.
That keeps the website useful for people rather than turning it into a collection of search-engine pages.