God help us all, but I come bearing visual aids! 😂
In this map I just made, you can kind of see how the general NWA community has a bunch of towns and cities smooshed all together. (That's why I'm always harping on how the Duggars are not living in a rural area. They're living on the edge of a metro area with over 500,000 people living there. It's not like New York or L.A. or Chicago, but by Arkansas standards, it's definitely not rural.)
I do not know addresses and only put stickers to mark general towns for residences. The only location I marked in the correct spot is the U of A campus in Fayetteville.
Blue marks Lowell, the town Jill and Derick are in now.
Black marks Sonora. Someone on here a couple of weeks ago said that is where Derick said they had been living before the move.
Red marks the U of A campus in Fayetteville where Derick is attending classes.
Yellow marks Tontitown, where the Duggars are. Green marks Rogers, where Cathy lives.
And though not directly related, I did mark Centerton with purple. That's where JD and Abby are going to church. As you can see, it's a bit out of the way, which I have found very odd.
By moving to Lowell, Jill and Derick are about 10 minutes from his mom and about 15 minutes from her parents, not counting when traffic gets a little nasty during rush hour. Even then, it's still not too bad of a drive. He's now about 20 minutes away from campus as long as it is not morning/evening rush.
From Sonora, it's probably about 20 minutes either way to either parental house, and the distance from the U of A isn't much different.
So, yeah, it's a closer move but not in a particularly significant way.
Hope this helps!