2020 Iowa elections

25 out of the 50 seats in the Iowa Senate, the even-numbered districts, were up for election. Out of the contested seats, the Republican Party won 19 districts and the Democratic Party won 6 districts. The resulting composition was 32 Republicans and 18 Democrats. The Republicans gained the 42nd district while the Democrats gained the 22nd district, resulting in no net seat change.

All 100 seats in the Iowa House of Representatives were up for election. Republicans won 59 seats and Democrats won 41 seats. Republicans gained 6 seats.

4 out of the 7 justices in the Iowa Supreme Court were up for retention election for a new term of up to 8 years.

Retain Justice Susan Kay Christensen[4]

Choice	Votes	%
Yes	859,886	73.03
No	317,598	26.97
Valid votes	1,177,484	69.26
Invalid or blank votes	522,646	30.74
Total votes	1,700,130	100.00

Retain Justice Edward Mansfield[4]

Choice	Votes	%
Yes	802,356	69.24
No	356,374	30.76
Valid votes	1,158,730	68.16
Invalid or blank votes	541,400	31.84
Total votes	1,700,130	100.00

Retain Justice Christopher McDonald[4]

Choice	Votes	%
Yes	825,661	71.29
No	332,499	28.71
Valid votes	1,158,160	68.12
Invalid or blank votes	541,970	31.88
Total votes	1,700,130	100.00

Retain Justice Thomas Waterman[4]

Choice	Votes	%
Yes	809,058	69.88
No	348,665	30.12
Valid votes	1,157,723	68.10
Invalid or blank votes	542,407	31.90
Total votes	1,700,130	100.00

4 out of the 9 judges in the Iowa Court of Appeals were up for retention election for a new term of up to 6 years.

Retain Judge Thomas N. Bower[4]

Choice	Votes	%
Yes	817,409	73.44
No	295,628	26.56
Valid votes	1,113,037	65.47
Invalid or blank votes	587,093	34.53
Total votes	1,700,130	100.00

Retain Judge David May[4]

Choice	Votes	%
Yes	812,162	73.17
No	297,854	26.83
Valid votes	1,110,016	65.29
Invalid or blank votes	590,114	34.71
Total votes	1,700,130	100.00

Retain Judge Julie A. Schumacher[4]

Choice	Votes	%
Yes	856,450	76.19
No	267,699	23.81
Valid votes	1,124,149	66.12
Invalid or blank votes	575,981	33.88
Total votes	1,700,130	100.00

Retain Judge Sharon Soorholtz Greer[4]

Choice	Votes	%
Yes	825,999	74.20
No	287,186	25.80
Valid votes	1,113,185	65.48
Invalid or blank votes	586,945	34.52
Total votes	1,700,130	100.00

Iowa had 6 electoral votes in the Electoral College. Republican Donald Trump won all of them with 53% of the popular vote.

One of the two United States Senators of Iowa was up for election. Incumbent Republican Joni Ernst won re-election with 52% of the votes.

All 4 of Iowa's representatives in the United States House of Representatives were up for election. Republicans won 3 seats and Democrats won 1 seat. The Republicans gained two seats, the 1st and 2nd districts.