The widest wealth gap since records began in the ‘60s has fueled the growth of U.S. neighborhoods where households earn $200,000 and above — the top tier of the Census Bureau’s community survey. Together with calculations by Webster Pacific, Bloomberg has identified the fastest-growing 100 of these wealthiest communities. Some of the findings:

1- No. 1 is around , the Chicago area “the area’s concentration of $200,000-plus households has skyrocketed from zero to 39%,” per Bloomberg.

2- The Washington, D.C., commuter area holds four of the top 10 high-earner neighborhoods.

3- The New York metropolitan area took Nos. 9 and 10.