There’s a new interactive map that shows the stark economic divide among District residents.

Esri, a software company that specializes in geographic information systems, highlights D.C. in its Wealth Divides project, which visualizes the top U.S. cities that have income disparities.

D.C.’s map is another view of what we already know about the city in terms of the contrast between eastern and western neighborhoods. On the map, dark blue shades represent neighborhoods where median household incomes are more than $150,000 and light blue accounts for households that bring in $100,000 to $150,000 a year. Meanwhile, orange areas represent lower income neighborhoods, with the darkest orange marking households that bring in less than $35,000 annually.

The study notes that Capitol Hill is an outlier on city’s lower-income eastern side, calling it “a blue island” at center right of the map.

While the causes of income equality vary, a common phenomenon in cities across the country is “pressure put on low-income families” by rising housing costs, according to the study.

In D.C.’s most expensive neighborhood for rentals, Foggy Bottom, people are shelling out a monthly average of $2,710 for one-bedroom spots and $4,480 for two-bedroom residences, according to a recent study by Apartment List. That compares to D.C.’s average monthly costs of $2,220 for a one bedroom and $3,050 for a two bedroom.

A recent report by the DC Fiscal Policy Institute noted that while 77 percent of D.C. renters who need affordable housing have extremely low incomes, only 39 percent of affordable apartments backed by the city with public dollars since 2010 are within reach of these families. And 62 percent of extremely low-income renters face severe hardships—that’s up from 50 percent ten years ago.