Housing, rain and floodplain figures for four North Fulton towns

In the Census Bureau's 2020-2024 estimates, the median year built is 1989 in Roswell (margin of error 2), 1987 in ZIP 30076 (1), 1989 in Sandy Springs (2), 1995 in Johns Creek (1) and 2002 in Milton (2).

Under the median, Roswell has 8,207 of 37,439 homes from before 1980, about 21.9 percent, and 12,295 from the 1980s (32.8 percent). Milton has 838 of 15,594 from before 1980, about 5.4 percent, and 9,115 from 2000 on, about 58.5 percent.

Renters hold 9,990 of 35,540 occupied homes in Roswell (28.1 percent, margin of error 771) and 5,360 of 16,648 in ZIP 30076 (32.2 percent, 483). In Sandy Springs it is 25,729 of 51,647 (49.8 percent, 1,234), in Johns Creek 5,680 of 28,948 (19.6 percent, 611) and in Milton 4,181 of 15,225 (27.5 percent, 587).

A tenant starts with the landlord or building manager. An owner or landlord can call (678) 679-2562.

NWS Atlanta's 2022 summary records 48.14 inches of precipitation against a normal of 49.71, and a largest single day of 2.40 inches on June 26. Its 2009 page records 69.43 inches and ranks that year second wettest.

For Hurricane Helene in September 2024, radar put the average at 9 to 11 inches in Fulton County, and 13 of the county's river gauges reported flooding. The narrative names no city in North Fulton, and county averages are not street figures.

Johns Creek's floodplain page puts about 6 percent of the city inside a regulated floodplain and names the Chattahoochee River and Autrey Mill, Big, Cauley and Johns creeks as possible sources. GEMA says flash floods can peak in only a few minutes, and counts more than 4,600 dams in Georgia, most of them privately owned.

A flood watch, GEMA adds, means flooding may happen six to 12 hours after heavy rain has ended.

Roswell Water Utility serves part of Roswell and Fulton County the rest, and Fulton handles every sewer line in the city. Sandy Springs gets water from the City of Atlanta and sends sewer blockages to Fulton County. Johns Creek's public works FAQ names Fulton County Water Resources as the contact for water and sewer trouble. Milton provides neither service itself: residents get water through Fulton County Water Services, and a home with no sewer bill probably has a septic tank.