Nathan Yau at Flowing Data crunched lot of numbers when researching what to name his son. One of the projects that interested him was the regionality of baby-naming. We've seen a breakdown of the most popular names through time by state (boys and girls), but most of those names were also the most popular names nationwide. Yau took a look at the names that were significantly more popular in certain areas of the US than they were in other areas -and mapped them. The graphic here shows some of the more regional names for children born in the 1960s (but not all of them). There are many more graphics at Flowing Data, for each decade since the '60s and for 2012, too. -via Laughing Squid
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