In Ohio we be Licking and Hocking.
Loving County, Texas, is the least populous county in the country (population: 64).
Cuming County, Nebraska. No, not Cumming. Cuming is the present participle of cume which is a rare verb meaning “to accumulate,” especially in the context of box-office receipts for a movie.
There’s a Boxing County in China.
Located adjacent to Just Breathing Hard County. 
Your private life is your business.
Not a county, but may I add Flushing?
Boring Oregon (Actually a town)
In Australia, where rural counties are termed Shires there is:
Bland Shire
Canning Shire
Chittering Shire
Cuballing Shire
You might also add Darling Shire & Stirling Shire
If towns and/or neighborhoods count, England has a few: Barking, Chipping, Tooting.
ETA: and Reading, though that’s a slight stretch pronunciationwise.
The old county of Yorkshire has three Ridings (East, North and West).
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ETA: rather pleasingly, there are a couple of Witterings not for from where we live (East and West)
There was that one town in Austria that finally changed its name after the “Welcome To” sign kept getting stolen…
NY has Wyoming County, for people who like to Wyom.
Pennsylvania also has a Wyoming County, and has Lycoming County for people who don’t like to Wyom.
Indiana has Jennings County, close but no cigar.
Harding County New Mexico, for those who go hard.
Which has a twinning agreement with Dull in Scotland. I believe Bland in Australia asked if they could join too.
Summit County Colorado. You Summit a mountain when you climp it. And we had a lot of very tall mountains. Worked for the county for 33 years.
Then Ohio has three since we have a Summit as well.
Also not a county but in GA we have Cumming.
Utah has a Summit County as well. The GIS department got some strange calls from Ohio and Utah. But it was pretty easy to sort out.
It’s kinda funny though, the highest ‘peak’ in Ohio is I think 600 feet.
Does Wake County, North Carolina count?
How do I go Cuballing? Inquiring minds want to know
Rhode Island also has a Summit - a whopping 500’ above sea level.
“Summit, so named as the highest point of the Providence, Hartford and Fishkill Railroad, was established in 1856.”