I’m curious to use this thread to track the first appearance (as well as the end) of the cicadas. Have you seen any yet? Please let me know where (what city, preferably) and the approximate date. It’ll be interesting to see how their appearance “tracks” across the Ohio Valley and Mid-Atlantic regions (and fringes thereof, I suppose.) If I forgot any geographic group, please feel free to add! - Jinx
Jefferson County, SE Indiana
May 11- I mention to Mom “Wonder when the cicadas are gonna get here?”
May 12- I see one in front of the house
May 13- Dozens are around the house- had to chase 3 outside.
Baltimore checking in. We’re supposed to be right in the middle of Cicada-ville.
I live just outside the city, sort of northeast of the city limits, out in the 'burbs, and I haven’t seen even one where I live.
Where I work, however, is another story. I work in Towson, due north of the city, and they’re every-freaking-where. Have been since Tuesday. I parked under a tree today (for the shade), and when I came out, there were four of them on my car roof.
Hamilton County, Southwest Ohio here. Haven’t seen any flying around or crawling up trees yet, but I pulled a bunch out of the ground while gardening… Looks like it’s only a matter of time, though.
My prediction is that by Monday we are in full-blown Cicada Mania! 
I live and work in Montgomery County, Maryland. Although the news proclaims that the cicadas are popping up everywhere, I have yet to see or hear one.
I do have a Luna Moth and a Polyphemus Moth hanging off some shrubs, having just emerged from their cocoons. Much rarer and cooler than cicadas!