Woodstock is about 40 minutes east of London on the 401.
It's the county seat for Oxford, and Toyota has built the RAV4 there since the plant opened in 2008. It sits on the 401 between London and Kitchener, and plenty of people drive in and out of it for work every day. That changes how we set up ads here. If the targeting stops at the city limits, it misses the people who drive in. If it covers all of southwestern Ontario, most of the budget goes to people who were never going to make the trip.
So we draw the area around where your customers come from, usually Woodstock plus the nearby Oxford County towns, and check it against where your calls and form leads come from after the first month. Your Google Business Profile and website get the same treatment: Woodstock and the surrounding towns named plainly, with the services you want to be found for.