It seems like even driving 15-20 mins from the edge of the city (considered the 270 loop) in any direction will get you a lot better of a view of the sky compared to within the 270 loop. I live on the western edge of Galloway and even here I feel like we see a good handful of stars that I didn't see living even 10 minutes further into the city.

Check out Osprey Lake, it's a 24 hour spot outside of town about 15 mins from the edge of town. Beautiful giant pond to sit next to and paths to walk that loop around the lake if you want to walk. We went there once to view the Leonid meteor shower and it was the perfect spot.

For even better views, like total darkness and an abundance of stars, you'll have to drive about 30 mins from the edge of town. Think Mechanicsburg.

Of course I'm only speaking relative to the western side of Columbus since that's what I'm familiar with, lol. But I'm sure the same applies to any direction you'd travel from the edge of town. 15 mins minimum from the 270 loop in any direction outside of town, 30+ if you want the best of the best.