I have some type 1 "acquaintances", I'm using that term very loosely, no close friends or people I know very well. I met some people at a jdrf meeting for type 1 adults but I haven't gone back to another yet, they're too far away most of the time and I can't be bothered to drive there, too much stress raises my bg. They were supposed to exchange our emails so we could communicate but they never did.
A nurse at a clinic I went to has type 1 and goes to one of the endos at my practice who also treated me in the hospital. One of my students has type 1, he happens to be the son of my cde- it's a small world. My neighbor has pre diabetes, she's in her 80's, her father had type 2 in his 70's and was on insulin- I can't remember if she is on anything currently. Another neighbor has a friend with type 1. I dated someone briefly who was type 1 years ago. A family friend has type 2 and her nephew has type 1, poorly controlled, and was just hospitalized with serious heart conditions and an amputation.
No one in my family has any type of diabetes as far as I know. I still feel like I really don't "know" anyone with diabetes as these aren't people I talk with that much for the most part. I'm sure there are more in my neighborhood who have diabetes but I don't know most of them and if they have D they haven't mentioned it. The ones I have interacted with know I have type 1 including one nice person who stored my insulin for me during Sandy.