We have been asked many times to enable a ‘service area’ on the business details page.
Its now live, take a look at these examples:
https://www.brownbook.net/business/48995038/voyd-bed-bug-treatment
https://www.brownbook.net/business/47423592/assassinator-pest-management
https://www.brownbook.net/business/46463764/jims-cleaning-prahran
The ‘service area’ is useful for businesses to show the area in which they operate. The way to do this is to simply make the address such that Google can determine an area rather than an address point.
Please do remember to also use the ‘location tags’ to describe the area as well, as quite often these are not the same as a known Google mappable area and can include colloquial names for an area.
Brownbook - The Global Business Listing Database 