Wake County, North Carolina: drinking water report. Wake County – Raleigh and surrounding communities including Cary, Apex, and Holly Springs – serves
Wake County – Raleigh and surrounding communities including Cary, Apex, and Holly Springs – serves about 1.15 million residents. The City of Raleigh draws from Falls Lake and Lake Benson, while the Town of Cary sources from Jordan Lake. These reservoirs are fed by tributaries of the Neuse and Cape Fear river systems, which drain agricultural and suburban landscapes across the North Carolina Piedmont.
Jordan Lake and Falls Lake have both experienced nutrient enrichment that fuels algal growth. The North Carolina DEQ has placed both reservoirs under nutrient management strategies, requiring upstream communities to reduce nitrogen and phosphorus loading. Algal blooms increase organic content in source water, which in turn increases disinfection byproduct formation during treatment.
UCMR5 data shows PFAS detections in Wake County water systems. The Cape Fear River basin downstream has received national attention for PFAS contamination from the Chemours Fayetteville Works facility, but contamination also appears in the upper basin. According to NC DEQ's 2024 monitoring data, four public water systems in Wake County reported PFAS above state screening levels.
Wake County's rapid growth means both Raleigh and Cary are continually expanding treatment capacity and distribution systems. New neighborhoods may experience variability as infrastructure stabilizes.
Check your water to see data for your ZIP code and provider. Activated carbon filters handle disinfection byproducts, while reverse osmosis addresses PFAS more effectively. Our water filter guide covers both. Pull your detailed report, and visit our North Carolina page for statewide patterns.