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Monroe County, IA


Designated Market Area: Des Moines-Ames, IA-MO
USDA County Type (2025): Manufacturing
American Communities Project County Type (2023): Rural Middle America

Places in Monroe County, IA     [Sort places by name]

 

Tracts in Monroe County, IA

   



Click here to view demographic data for Monroe County, IA

2024 population: 7,373   ( 200 from 2020)
Land area: 433.7 square miles
Population density: 17.0 persons per square mile

2024 Census data
White:6,969 94.52% 3.8%
Black:690.94% 15.0%
Indian:220.30% 57.1%
Asian:380.52% 26.7%
2+ races:971.32% 1.0%
Hispanic:1782.41% 35.9%
Total non-White:4045.48% 22.1%

2020-2024 ComponentsNumberRate
Births:344 11.4
Deaths:49016.2
Net Migration: -53-1.7
Net Immigration: -4-0.1
Change in White population:-273 -3.6
Change in Non-White pop.:73 1.0



Historical Presidential Election Results for Monroe County, IA

Recent Trends
VotesΔ MarginSwing %
2024 vs. 2020 R +129 R +205 R + 4.4%
D -76
2024 vs. 2016 R +466 R +520 R + 8.4%
D -54
2020 vs. 2016 R +337 R +315 R + 4.0%
D +22
2024 vs. 2012 R +1,078 R +1,807 R + 43.3%
D -729
2016 vs. 2008 R +638 R +1,380 R + 37.5%
D -742
How to interpret this table


Click on the Year to view county-level data for that election.

YearTurnout WinnerRunner-Up OtherTotal Votes Diff
(St) 		Diff
(US) 		PSV
2024 74% Donald Trump (R) 3,104 74.7% Kamala Harris (D) 1,002 24.1% 52 [+] 1.3% 4,158 19 25 0.25%
2020 72% Donald Trump* (R) 2,975 72.8% Joe Biden (D) 1,078 26.4% 35 [+] 0.9% 4,088 20 26 0.24%
2016 66% Donald Trump (R) 2,638 68.3% Hillary Clinton (D) 1,056 27.3% 171 [+] 4.4% 3,865 17 22 0.25%
2012 64% Mitt Romney (R) 2,026 52.9% Barack Obama* (D) 1,731 45.2% 73 [+] 1.9% 3,830 7 6 0.24%
2008 64% John McCain (R) 2,000 51.6% Barack Obama (D) 1,798 46.4% 76 [+] 2.0% 3,874 7 6 0.25%
2004 66% George W. Bush* (R) 2,067 52.2% John Kerry (D) 1,855 46.8% 41 [+] 1.0% 3,963 2 1 0.26%
2000 61% George W. Bush (R) 1,858 50.9% Albert Gore, Jr. (D) 1,699 46.6% 90 [+] 2.5% 3,647 3 3 0.28%
1996 59% Bill Clinton* (D) 1,884 53.6% Robert Dole (R) 1,272 36.2% 357 [+] 10.2% 3,513 -4 -4 0.28%
1992 63% Bill Clinton (D) 1,829 48.4% George Bush* (R) 1,323 35.0% 630 [+] 16.7% 3,782 -2 -2 0.28%
1988 59% Michael Dukakis (D) 2,338 63.8% George Bush (R) 1,313 35.8% 16 [+] 0.4% 3,667 -9 -18 0.30%
1984 67% Walter Mondale (D) 2,342 54.6% Ronald Reagan* (R) 1,927 44.9% 22 0.5% 4,291 -8 -14 0.33%
1980 61% Ronald Reagan (R) 2,003 48.7% Jimmy Carter* (D) 1,866 45.3% 248 [+] 6.0% 4,117 -3 -2 0.31%
1976 63% Jimmy Carter (D) 2,360 59.1% Gerald Ford* (R) 1,581 39.6% 55 [+] 1.4% 3,996 -10 -8 0.31%
1972 65% Richard Nixon* (R) 2,357 56.7% George McGovern (D) 1,736 41.8% 62 [+] 1.5% 4,155 -1 -4 0.34%
1968 80% Hubert Humphrey (D) 2,240 47.6% Richard Nixon (R) 2,143 45.5% 322 [+] 6.8% 4,705 -7 2 0.40%
1964 78% Lyndon Johnson* (D) 3,186 66.5% Barry Goldwater (R) 1,588 33.1% 17 0.4% 4,791 -5 -5 0.40%
1960 84% Richard Nixon (R) 2,922 54.2% John Kennedy (D) 2,459 45.6% 10 0.2% 5,391 -3 5 0.42%
1956 78% Dwight Eisenhower* (R) 2,984 53.2% Adlai Stevenson (D) 2,616 46.6% 12 0.2% 5,612 -6 -4 0.45%
1952 80% Dwight Eisenhower (R) 3,219 53.3% Adlai Stevenson (D) 2,785 46.1% 38 0.6% 6,042 -10 -2 0.48%
1948 73% Harry Truman* (D) 3,445 58.1% Thomas Dewey (R) 2,371 40.0% 110 [+] 1.9% 5,926 -8 -5 0.57%
1944 67% Franklin Roosevelt* (D) 3,258 55.0% Thomas Dewey (R) 2,625 44.3% 46 0.8% 5,929 -8 -2 0.56%
1940 77% Franklin Roosevelt* (D) 3,994 54.4% Wendell Willkie (R) 3,270 44.6% 72 1.0% 7,336 -7 0 0.60%
1936 82% Franklin Roosevelt* (D) 4,205 56.4% Alf Landon (R) 3,001 40.2% 255 [+] 3.4% 7,461 -2 4 0.65%
1932 70% Franklin Roosevelt (D) 3,716 57.8% Herbert Hoover* (R) 2,458 38.3% 252 [+] 3.9% 6,426 -2 -1 0.62%
1928 68% Herbert Hoover (R) 4,060 59.0% Al Smith (D) 2,819 41.0% 0 0.0% 6,879 -3 1 0.68%
1924 66% Calvin Coolidge (R) 4,098 51.2% Robert LaFollette (Prog) 2,514 31.4% 1,388 [+] 17.4% 8,000 -4 -3 0.82%
1920 52% Warren Harding (R) 4,500 61.2% James Cox (D) 2,081 28.3% 771 [+] 10.5% 7,352 -10 1 0.82%
1916 33% Charles Evans Hughes (R) 2,144 45.1% Woodrow Wilson* (D) 2,095 44.1% 510 [+] 10.7% 4,749 -9 -1 0.92%
1912 36% Theodore Roosevelt (Prog) 1,495 28.3% Woodrow Wilson (D) 1,485 28.1% 2,302 [+] 43.6% 5,282 2 3 1.07%
1908 39% William Taft (R) 2,686 51.6% William J. Bryan (D) 1,979 38.0% 542 [+] 10.4% 5,207 -4 0 1.05%
1904 45% Theodore Roosevelt (R) 3,249 62.2% Alton Parker (D) 1,182 22.6% 795 [+] 15.2% 5,226 -1 6 1.08%
1900 43% William McKinley* (R) 2,233 51.6% William J. Bryan (D) 1,705 39.4% 388 [+] 9.0% 4,326 -6 0 0.82%
* incumbent         PSV: percent of state vote

Historical Statewide Election Results for Monroe County, IA

Click on the Year to view county-level data for that election.

YearTypeTurnout WinnerRunner-Up OtherTotal VotesDiff PSV
2022 S3 52% Charles Grassley* (R) 2,135 73.5% Michael Franken (D) 762 26.2% 6 [+] 0.2% 2,903 18 0.24%
2022 G 53% Kim Reynolds* (R) 2,266 76.4% Deidre DeJear (D) 635 21.4% 65 [+] 2.2% 2,966 18 0.24%
2020 S2 71% Joni Ernst* (R) 2,742 68.4% Theresa Greenfield (D) 1,148 28.6% 119 [+] 3.0% 4,009 17 0.24%
2018 G 55% Kim Reynolds* (R) 2,053 64.9% Fred Hubbell (D) 1,061 33.6% 47 [+] 1.5% 3,161 15 0.24%
2016 S3 66% Charles Grassley* (R) 2,458 64.1% Patty Judge (D) 1,280 33.4% 99 [+] 2.6% 3,837 4 0.25%
2014 S2 49% Joni Ernst (R) 1,749 60.4% Bruce Braley (D) 970 33.5% 177 [+] 6.1% 2,896 8 0.26%
2014 G 50% Terry Branstad* (R) 1,974 67.3% Jack Hatch (D) 827 28.2% 133 [+] 4.5% 2,934 8 0.26%
2010 S3 48% Charles Grassley* (R) 1,983 68.8% Roxanne Conlin (D) 827 28.7% 72 [+] 2.5% 2,882 4 0.26%
2010 G 48% Terry Branstad (R) 1,650 56.8% Chet Culver* (D) 1,125 38.8% 128 [+] 4.4% 2,903 4 0.26%
2008 S2 63% Tom Harkin* (D) 2,260 59.3% Christopher Reed (R) 1,549 40.7% 1 [+] 0.0% 3,810 3 0.25%
2006 G 44% Chet Culver (D) 1,542 58.3% Jim Nussle (R) 1,071 40.5% 34 [+] 1.3% 2,647 -4 0.25%
2004 S3 65% Charles Grassley* (R) 3,008 76.9% Art Small (D) 847 21.7% 56 [+] 1.4% 3,911 7 0.26%
2002 S2 45% Tom Harkin* (D) 1,566 57.5% Greg Ganske (R) 1,099 40.4% 57 [+] 2.1% 2,722 -3 0.27%
2002 G 46% Tom Vilsack* (D) 1,508 55.1% Doug Gross (R) 1,153 42.1% 75 [+] 2.7% 2,736 -2 0.27%
1998 S3 47% Charles Grassley* (R) 1,952 69.5% David Osterberg (D) 820 29.2% 38 [+] 1.4% 2,810 1 0.30%
1998 G 48% Tom Vilsack (D) 1,579 55.2% Jim Ross Lightfoot (R) 1,245 43.5% 38 [+] 1.3% 2,862 -3 0.30%
1996 S2 59% Tom Harkin* (D) 1,894 53.8% Jim Ross Lightfoot (R) 1,589 45.1% 39 [+] 1.1% 3,522 -2 0.29%
1994 G 45% Terry Branstad* (R) 1,628 60.4% Bonnie Campbell (D) 1,021 37.9% 48 [+] 1.8% 2,697 4 0.27%
1992 S3 65% Charles Grassley* (R) 2,707 69.0% Jean Lloyd-Jones (D) 1,075 27.4% 144 [+] 3.7% 3,926 -1 0.30%
1990 S2 53% Tom Harkin* (D) 1,988 61.5% Tom Tauke (R) 1,243 38.5% 1 [+] 0.0% 3,232 -8 0.33%
1990 G 54% Terry Branstad* (R) 1,861 57.0% Donald Avenson (D) 1,401 42.9% 3 [+] 0.1% 3,265 -4 0.33%
1986 S3 47% Charles Grassley* (R) 1,785 60.3% John Roehrick (D) 1,168 39.4% 8 [+] 0.3% 2,961 -6 0.33%
1986 G 48% Lowell Junkins (D) 1,546 51.1% Terry Branstad* (R) 1,475 48.8% 2 [+] 0.1% 3,023 -3 0.33%
1984 S2 65% Tom Harkin (D) 2,636 63.4% Roger Jepsen* (R) 1,509 36.3% 15 [+] 0.4% 4,160 -7 0.32%
1982 G 52% Roxanne Conlin (D) 1,762 51.1% Terry Branstad (R) 1,669 48.4% 15 [+] 0.4% 3,446 -4 0.33%
1980 S3 59% John Culver* (D) 2,013 50.6% Charles Grassley (R) 1,942 48.8% 25 [+] 0.6% 3,980 -5 0.31%
1978 S2 49% Dick Clark* (D) 1,542 50.0% Roger Jepsen (R) 1,507 48.9% 32 [+] 1.0% 3,081 -2 0.37%
1978 G 49% Jerry Fitzgerald (D) 1,615 51.8% Robert Ray* (R) 1,499 48.1% 4 [+] 0.1% 3,118 -10 0.37%
1974 S3 47% John Culver (D) 1,568 52.3% David Stanley (R) 1,410 47.1% 18 [+] 0.6% 2,996 0 0.34%
1974 G 49% Robert Ray* (R) 1,625 51.6% James Schaben (D) 1,508 47.9% 16 [+] 0.5% 3,149 -6 0.34%
1972 S2 64% Dick Clark (D) 2,306 56.5% Jack Miller* (R) 1,769 43.3% 10 [+] 0.2% 4,085 -1 0.34%
1972 G 64% Robert Ray* (R) 2,234 54.6% Paul Franzenburg (D) 1,834 44.8% 24 [+] 0.6% 4,092 -4 0.34%
1970 G 46% Robert Fulton (D) 1,390 50.3% Robert Ray* (R) 1,280 46.3% 96 [+] 3.5% 2,766 -5 0.35%
1968 S3 78% Harold Hughes (D) 2,456 53.5% David Stanley (R) 2,130 46.4% 2 [+] 0.0% 4,588 -3 0.40%
1968 G 76% Paul Franzenburg (D) 2,326 51.8% Robert Ray (R) 2,161 48.1% 2 [+] 0.0% 4,489 -6 0.39%
1966 S2 65% Jack Miller* (R) 2,213 57.0% E.B. Smith (D) 1,646 42.4% 25 [+] 0.6% 3,884 -4 0.45%
1966 G 66% Harold Hughes* (D) 2,172 54.6% William Murray (R) 1,801 45.2% 8 [+] 0.2% 3,981 1 0.45%
1964 G 77% Harold Hughes* (D) 3,209 67.7% Evan Hultman (R) 1,512 31.9% 19 [+] 0.4% 4,740 1 0.41%
1962 S3 59% Bourke Hickenlooper* (R) 1,894 51.4% E.B. Smith (D) 1,793 48.6% 0 0.0% 3,687 -2 0.46%
1962 G 60% Harold Hughes (D) 1,963 52.1% Norman Erbe* (R) 1,808 47.9% 0 0.0% 3,771 1 0.46%
1960 S2 82% Jack Miller (R) 2,640 50.2% Herschel Loveless (D) 2,616 49.8% 0 0.0% 5,256 -2 0.42%
1960 G 82% Norman Erbe (R) 2,678 50.9% Edward McManus (D) 2,587 49.1% 0 0.0% 5,265 -1 0.43%
*: incumbent               +: ran on additional party lines               Type: G: Governor; S1,S2,S3: Senate Class 1, 2 or 3
italics: special election           RO: runoff election           PSV: percent of state vote


Historical U.S. House Election Results for Monroe County, IA

Click on the District to view county-level data for that election (where available).

DateDistrictWinnerRunner-Up OtherTotal Votes
2024-11-05 IA03Zach Nunn* (R) 2,931 73.7% Lanon Baccam (D) 1,039 26.1% 7 0.2% 3,977
County Total for 2024-11-05:   3,977
2022-11-08 IA03Zach Nunn (R) 2,106 72.5% Cindy Axne* (D) 794 27.3% 5 0.2% 2,905
County Total for 2022-11-08:   2,905
2020-11-03 IA02Mariannette Miller-Meeks (R) 2,612 68.4% Rita Hart (D) 1,203 31.5% 6 0.2% 3,821
County Total for 2020-11-03:   3,821
2018-11-06 IA02Christopher Peters (R) 1,717 55.3% Dave Loebsack* (D) 1,294 41.7% 92 3.0% 3,103
County Total for 2018-11-06:   3,103
2016-11-08 IA02Christopher Peters (R) 1,898 52.2% Dave Loebsack* (D) 1,731 47.6% 5 0.1% 3,634
County Total for 2016-11-08:   3,634
2014-11-04 IA02Mariannette Miller-Meeks (R) 1,606 55.8% Dave Loebsack* (D) 1,267 44.0% 4 0.1% 2,877
County Total for 2014-11-04:   2,877
2012-11-06 IA02John Archer (R) 1,819 49.8% Dave Loebsack* (D) 1,762 48.2% 73 2.0% 3,654
County Total for 2012-11-06:   3,654
2010-11-02 IA03Brad Zaun (R) 1,383 48.2% Leonard Boswell* (D) 1,374 47.9% 111 3.9% 2,868
County Total for 2010-11-02:   2,868
2008-11-04 IA03Leonard Boswell* (D) 2,256 59.7% Kim Schmett (R) 1,461 38.7% 59 1.6% 3,776
County Total for 2008-11-04:   3,776
2006-11-07 IA03Leonard Boswell* (D) 1,436 54.9% Jeff Lamberti (R) 1,127 43.1% 54 2.1% 2,617
County Total for 2006-11-07:   2,617
2004-11-02 IA03Leonard Boswell* (D) 2,399 61.7% Stan Thompson (R) 1,487 38.3% 1 0.0% 3,887
County Total for 2004-11-02:   3,887
2002-11-05 IA03Leonard Boswell* (D) 1,738 64.0% Stan Thompson (R) 933 34.4% 44 1.6% 2,715
County Total for 2002-11-05:   2,715
2000-11-07 IA03Leonard Boswell* (D) 2,415 68.0% Jay Marcus (R) 1,035 29.2% 99 2.8% 3,549
County Total for 2000-11-07:   3,549
1998-11-03 IA03Leonard Boswell* (D) 1,741 62.4% Larry McKibben (R) 996 35.7% 51 1.8% 2,788
County Total for 1998-11-03:   2,788
1996-11-05 IA03Leonard Boswell (D) 1,787 52.3% Mike Mahaffey (R) 1,543 45.2% 87 2.5% 3,417
County Total for 1996-11-05:   3,417
1994-11-08 IA03Jim Ross Lightfoot* (R) 1,552 59.5% Elaine Baxter (D) 1,002 38.4% 55 2.1% 2,609
County Total for 1994-11-08:   2,609
1992-11-03 IA03Jim Ross Lightfoot* (R) 1,848 47.7% Elaine Baxter (D) 1,736 44.8% 290 7.5% 3,874
County Total for 1992-11-03:   3,874
*: incumbent           sp: special election           RO: runoff election

Voter Registration Data for Monroe County, IA

YearTotalRepublicanDemocratOtherR/D EdgeR/D Edge %VAPOP %
2024 4,220 2,276 53.9% 826 19.6% 1,118 26.5% Rep +1,450 Rep +34.4% 75%
2022 4,595 2,152 46.8% 1,044 22.7% 1,399 30.4% Rep +1,108 Rep +24.1% 82%
2020 4,946 2,130 43.1% 1,367 27.6% 1,449 29.3% Rep +763 Rep +15.4% 88%
2018 4,758 1,744 36.7% 1,438 30.2% 1,576 33.1% Rep +306 Rep +6.4% 84%
2016 4,784 1,713 35.8% 1,551 32.4% 1,520 31.8% Rep +162 Rep +3.4% 83%
2014 4,739 1,521 32.1% 1,657 35.0% 1,561 32.9% Dem +136 Dem +2.9% 81%
2012 4,777 1,503 31.5% 1,778 37.2% 1,496 31.3% Dem +275 Dem +5.8% 80%
2010 4,938 1,530 31.0% 1,927 39.0% 1,481 30.0% Dem +397 Dem +8.0% 82%
2008 5,019 1,342 26.7% 2,184 43.5% 1,493 29.7% Dem +842 Dem +16.8% 83%
2006 5,069 1,387 27.4% 1,978 39.0% 1,704 33.6% Dem +591 Dem +11.7% 84%
2004 5,213 1,458 28.0% 2,050 39.3% 1,705 32.7% Dem +592 Dem +11.4% 87%
2002 4,921 1,419 28.8% 1,946 39.5% 1,556 31.6% Dem +527 Dem +10.7% 82%
2000 5,116 1,436 28.1% 2,102 41.1% 1,578 30.8% Dem +666 Dem +13.0% 86%
1994 4,677 1,441 30.8% 2,190 46.8% 1,046 22.4% Dem +749 Dem +16.0% 78%
1986 5,024 1,539 30.6% 2,092 41.6% 1,393 27.7% Dem +553 Dem +11.0% 80%
VAPOP% is the estimated percentage of voting age population that is registered.
Registration data may include "inactive" voters.   Data for each year pertains to the November elections.