My grandma just got Lyme with pretty high certainty in her own garden. In suburbia in a million people city. With a deer:people ratio of about 0.00.
From my understanding, ticks can be in any type of grass. If you somehow touch grass of any type, be it walking, sitting or hand-mowing, there is a chance of picking one up. Sure, there are few ticks in very populated areas, but I would rather guess that more people equates to more likelyness that someone else already picked up the ticks in that area. And obviously: there is less grass were many people go.
From my understanding, ticks can be in any type of grass. If you somehow touch grass of any type, be it walking, sitting or hand-mowing, there is a chance of picking one up. Sure, there are few ticks in very populated areas, but I would rather guess that more people equates to more likelyness that someone else already picked up the ticks in that area. And obviously: there is less grass were many people go.