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This map shows where the new moms of Generation X live in town. Specifically, it's the number of women per 1,000 between 35 and 50 years old that had given birth in the past 12 months when this census survey was taken.
"Generation X" is the term often used to define those born between the early 1960s and the mid 1970s: so the census' range of women who were 35-50 in 2011 fits Gen X perfectly.
Using your cursor, you can hover over any census tract – the geographic region defined by U.S. Census – and see the number of births per 1,000 for women over 35 in the box in the upper right hand corner of the map.
The map doesn't count every new mom from Generation X, of course: If you had a baby this year, you're not reflected here. But this snapshot from 2011 points to trends across town.
Data are from the United States Census Bureau and its 2011 American Community Survey. (Note: Census.gov was "unavailable" at the time this article was published thanks to the federal government shutdown.) These values are an estimate for 2011 taking into account 60 months of collected data.
Do you think the places with more Gen X moms will have more infants listening to Rockabye Baby? Tell us in the comments or in a blog post.