This city counts 188,000 occupied dwellings, with about half occupied by renters and half by owners. The housing stock is much older than the national average, with 43 percent built in 1949 or earlier (compared with 22 percent for the United States) and only 11 percent of them built since 1980 (compared with 35 for the United States). As we've observed, many of the flooded homes are modest to Spartan to ramshackle and will have to be demolished if toxic mold or fire don't take them first.