You'll be in the search forever. The dimension simply uncommon with your combination.

Buy a white oval instead. You'll find little in white, quite honestly. Get a 48 x 79. , Or have a local craftsman make it : )

https://www.roveconcepts.com/rove-classics_tulip-table-oval-lacquer.html

Or at 54 going to 74..........you paint

https://www.wayfair.com/furniture/pdp/one-allium-way-slade-pedestal-extendable-dining-table-onaw6275.html

and another...

https://centuryfurniture.com/product-detail.aspx?sku=36H-305&section=

Or 60 to 84

http://www.hickorychair.com/Furniture/Dining-Room-and-Kitchen-Furniture/Suzanne-Kasler/i510254-Arden-Expansion-Dining-Table.aspx

Thanks...the problem lies with the aged look that comes with most white (wayfare, potteryB, etc)
which we are not searching for. This is a beach house and our lines are clean.

Offer more info about your needs ..for more pertinent answers.

" Anyone know where I can get a white dining/kitchen table (set) that is round at 60" and extends to 76" by 60". " How much more do you need?

Ok ...lets see how that goes

You may get more answers if you give some pictures of the style your looking for even if not the correct dimensions. There many different styles of white tables.

Ergo... “more info”

Last answer, and I will tell you be prepared to pay. See below. Not in this finish. It's 54 inches and will go to 74 with one leaf. It has clean lines, Your finish would be "sugar.. If you want to horse around for 6 inches or four ? Have at it as you WILL BE AR IT FOR EONS.

For the one below, you need a good furniture store, a designer or a design center. You can't CLICK unless from an online retailer with the brand.

https://hickorywhite.com/catalog/470-10

Round Dining Table

470-10

54 in. Diameter ; H 30 in.
Extends to 74" with (1) 20 in. Leaf

Shown in #56 G2 Finish

Available in all Custom Finishes

IN sugar

thanks Jan Moyer (and everyone as well)...I think this is what I am looking for..

https://www.amishtables.com/collections/tables/products/barrington-single-pedestal-extension-table?variant=30245578539031

Go get a Saarinen table not some cheap knock off from PB. It will not look aged and is a classic oval . BTW if we ask for more info it is because we need it. Often seeing the space and your style helps us help you.