I think as long as you live in an ok area you should have enough population that you don’t have to travel more than 5 Miles. I used to say 90% of my work was within 3 miles of my front door.
The great thing about working in such a short area is people constantly see your van and know your local.
It also helps to keep all your marketing within this area, which is the biggest negative with internet marketing, people from a massive distance see you your website so call you, even Google Adwords can only be targeted to within 20miles of your location