Iowa polling average: Sand (D) 50.2% · Lahn (R) 42.2%Mean of the polls published in the 21 days to 1 Oct 2026.
Polling trend
Each point is one published poll; lines are the 21-day average of all polls. Hover or tap for institute and date.
What the polls say
Sand (D) leads the polling average in Iowa on 50.2%, 8.0 points ahead of Lahn (R) (42.2%). The biggest shift over the past month is Lahn (R), down 2.8 points.
6 polls from 6 institutes were published in the last 30 days of polling. The most recent is from Beacon Research (D)/ Shaw & Co. Research (R), published 1 Oct 2026. The average weighs every poll equally over 21 days; read how it works.