DH and I are team green, we have both a boy and girl name that we love! We picked these names out months ago, have been calling our little baby by these names and they feel right! Recently we noticed both names are on the top 100 baby name lists. Is that bad? We have a unique last name, and according to sites like 
https://howmanyofme.com/ there aren't many people with the same first and last name combo we decided on, so that's good!  
My name is very unique, I have never had another with my name in class, work, teams, etc. I have no idea what it is like to share a name or have to be referred to by a nickname or last name. My question is, how popular is too popular? Who else has decided on popular names? Any insight into what it's like sharing a name?                
 
                
Re: Name Popularity
For comparison I looked up my birth year and my name had been #23 which was still less than 1% of baby girls-- it was 0.79%. Growing up I was almost always the only one in classes at school with my first name. I think there were 2 others in my high school graduating class of about 350 people. And that was back when names were less diverse. 2014's #23 girl name was only 0.35% of the population. The #5 name was closest to the percentage that my name was back in the 80s.
So so that's my nerdy way of telling myself that a #70/100 name will not feel overly common at all. If we have bad luck, it's always possible she'll share the same first and last name as someone who is in all her classes forever! But chances are she won't and just might come across one or two others with her name as she goes though childhood.
As far as how it feels to share a name, I never expected to be the only one with my name so I never really thought about it. I'm sure it would get annoying if you were always "Jessica B." Because there were always 2 other Jessica's in every class, but that isn't happening much these days especially if you stay out of the top 10 names.
(I know there is a Canadian twenty something with the same name as her grandmother tried friending me on Facebook)
unique names can be fun because people love to give you 50 million nick names, and you are usually the only one in school with that name, but they can be frustrating as well... People mispronounced my name all the time, or misspelled it. (It's was a city/state in Greece so it's not just made up)
so honestly, I don't think you can go right or wrong with a popular name. You can go very wrong with a unique name. At the end of the day as long as you love it, your child will probably grow to love it as well.
My name was a top 3 name the year I was born. It never bothered me being 1 of usually 2 or 3 other Amandas in a class or on a team or anything.
The only thing I would think twice about when it comes to "popular" names is if they will really date your child or not. For example, Tiffanys are pretty commonly dated as girls born in the 80s, as I am sure the Harpers and whatnot will be similarly dated as girls born in the 2010s.
Me: 29 DH: 31
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I am a 1984 Jennifer so I ran some stats to make myself feel more confident about our choices. Basically about 6% of baby girls born in 1984 were named Jennifer, compared to 1.01% of babies were named Ava (#1 baby name for our region in 2015). Kids are being named diversely so I think the worry about having the Jennifer-Amanda-Jessica-Ashley issue many of us faced is becoming not a concern.
It's not a big deal if your kiddo has one name twin in elementary school. There was only one other Jennifer in my class growing up (and even only a few years since there were 2 elementary school classes) but I went to school with 2 Tara and 3 Stacey's which were in the top 100 (just looked) but in the back 50s.
So pick what you love.
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