Nixon 68, Bush 92, Clinton 16 counties

[Yu748Girl83]

Are there any?

[Adem 45]

There's plenty of them.

[One Term Floridian]

Chicago collar counties, off the top of my head

[sinngael]

Orange CA, Maricopa and Chester PA

[You don't see any blue avatars now]

At the state level: Virginia

At the county level:
Alpine, CA
Mono, CA
Nevada, CA
Arapahoe, CO
Jefferson, CO
Ouray, CO
Fairfield, CT
Hillsborough, FL
Orange, FL
Osceola, FL
Cobb, GA
DuPage, IL
Lake, IL
Kane, IL
Marion, IN
Fayette, KY
Anne Arundel, MD
Charles, MD
Oakland, MI
Olmsted, MN
Gallatin, MT
Douglas, NE
Lancaster, NE
Washoe, NV
Bergen, NJ
Passaic, NJ
Somerset, NJ
Los Alamos, NM
Clinton, NY
Columbia, NY
Dutchess, NY
Forsyth, NC
Mecklenburg, NC
Franklin, OH
Chester, PA
Dauphin, PA
Monroe, PA
Charleston, SC
Dallas, TX
Fort Bend, TX
Harris, TX
Salt Lake, UT
Summit, UT
Albemarle, VA
Danville, VA
Emporia, VA
Fairfax City, VA
Fairfax County, VA
Harrisonburg, VA
Henrico, VA
Lexington, VA
Loudoun, VA
Manassas, VA
Manassas Park, VA
Prince Edward, VA
Prince William, VA
Radford, VA
Staunton, VA
Winchester, VA

I think I got everything. One or two Virginia counties may be on or off the list but shouldn't be.