Why cancer, not cost of living, may be the biggest issue in Iowa’s midterm elections

by | Aug 17, 2026 | Politics

Why cancer, not cost of living, may be the biggest issue in Iowa’s midterm elections

Iowa has emerged as a focal point in the upcoming midterm elections due to escalating cancer rates that have become a central campaign issue for candidates across the political spectrum. According to data from the National Institute on Minority Health and Health Disparities, the state ranks second nationally in cancer incidence and is among only three states experiencing rising disease rates. Both Republican and Democratic candidates have pledged to prioritize addressing the public health crisis, though they diverge on root causes and potential solutions.

The state’s cancer rates followed national patterns until 2012, when they began climbing for reasons that remain unclear to public health officials. As of 2022, Iowa’s overall cancer rate stood at approximately 506 cases per 100,000 people, compared with a national average of 442 per 100,000. The state also reports elevated rates of non-Hodgkin lymphoma and acute myeloid leukemia. Surveys indicate voters rank cancer as the top issue facing Iowa, surpassing concerns about the cost of living.

A significant point of contention between candidates centers on agriculture’s potential role in the health crisis. Iowa leads the nation in corn and pork production and generates roughly one-third of its economic output from agriculture. The state uses more fertilizer than any other state and operates the most concentrated animal feeding operations, which generate runoff containing nitrates linked to cancer risk. Iowa also maintains relatively limited regulations on pesticides and farm runoff entering water supplies. Some studies have suggested glyphosate, the most widely used herbicide in Iowa, may be connected to certain cancer types.

Water quality has emerged as a tangible concern, with some Iowa waterways ranking among the nation’s most polluted by nitrates. Des Moines’s water utility implemented its first-ever lawn watering ban last year due to elevated nitrate levels in rivers supplying the capital, with water rationing again occurring this summer. Other contributing factors to cancer risk include naturally occurring radon exposure and alcohol and tobacco use. The state legislature recently approved a $320 million water quality investment and mandated radon mitigation systems in new construction.

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