Ronald Reagan carried Illinois R+7.9.

Jimmy Carter (D) vs Ronald Reagan (R) in Illinois, 1980. The state ran 1.8 points more Democratic than the nation (R+9.7 nationally). A US Senate contest shared the 1980 ballot here.

Nominees: Jimmy Carter (D) · Ronald Reagan (R)

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Illinois result

4,749,721 votes counted

Carter (D)

1,981,413

41.7%

Reagan (R)

2,358,049

49.6%

All others

410,259

8.6%

Margin

R+7.9

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1980 presidential election

Illinois, 1980

ReaganR+7.9

How it voted

Share of the 1980 vote

Ronald Reagan ✓Republican	49.6%	2,358,049
Jimmy CarterDemocratic	41.7%	1,981,413
John B. AndersonIndependent	8.6%	410,259

D+60

R+60

102 counties, each filled by 1980 D-vs-R margin. Hover any county for its result.

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Illinois's presidential margins

1892–2024, the 1980 contest in context

Illinois's presidential margins

Year	Margin (D minus R)
1892	+3.1%
1896	−13.0%
1900	−8.4%
1904	−28.3%
1908	−15.5%
1912	+13.2%
1916	−9.2%
1920	−42.3%
1924	−35.5%
1928	−14.7%
1932	+13.2%
1936	+18.0%
1940	+2.4%
1944	+3.5%
1948	+0.8%
1952	−9.9%
1956	−19.2%
1960	+0.2%
1964	+18.9%
1968	−2.9%
1972	−18.5%
1976	−2.0%
1980	−7.9%
1984	−12.9%
1988	−2.1%
1992	+14.2%
1996	+17.5%
2000	+12.0%
2004	+10.3%
2008	+25.1%
2012	+16.8%
2016	+16.9%
2020	+16.9%
2024	+10.9%

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County results — 1980

102 counties; every row links to the county's full page.

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County	Won	Margin	Democratic	Republican	Total
Adams County	R	−28.9%	10,606	19,842	31,917
Alexander County	D	+4.8%	2,925	2,650	5,678
Bond County	R	−20.8%	2,834	4,398	7,532
Boone County	R	−30.3%	3,175	6,697	11,614
Brown County	R	−26.4%	950	1,660	2,692
Bureau County	R	−30.8%	5,753	11,484	18,587
Calhoun County	R	−13.2%	1,208	1,591	2,895
Carroll County	R	−36.5%	2,154	5,084	8,023
Cass County	R	−21.0%	2,543	3,965	6,770
Champaign County	R	−18.8%	21,017	33,329	65,360
Christian County	R	−13.4%	6,625	8,770	16,036
Clark County	R	−30.2%	2,855	5,476	8,666
Clay County	R	−25.6%	2,587	4,447	7,266
Clinton County	R	−29.6%	4,470	8,500	13,593
Coles County	R	−25.4%	6,743	11,994	20,671
Cook County	D	+12.4%	1,124,584	856,574	2,163,097
Crawford County	R	−26.0%	3,372	5,894	9,710
Cumberland County	R	−24.0%	1,892	3,159	5,289
De Witt County	R	−32.5%	2,262	4,648	7,344
DeKalb County	R	−24.6%	8,913	16,370	30,365
Douglas County	R	−33.3%	2,564	5,330	8,294
DuPage County	R	−39.8%	68,991	182,308	284,749
Edgar County	R	−30.9%	3,394	6,639	10,515
Edwards County	R	−40.4%	1,041	2,556	3,751
Effingham County	R	−35.3%	4,229	9,104	13,808
Fayette County	R	−27.9%	3,614	6,523	10,408
Ford County	R	−44.6%	1,803	5,024	7,214
Franklin County	R	−1.5%	9,425	9,731	19,856
Fulton County	R	−15.0%	7,481	10,316	18,957
Gallatin County	R	−0.6%	1,678	1,700	3,466
Greene County	R	−22.7%	2,607	4,224	7,120
Grundy County	R	−33.5%	3,970	8,397	13,204
Hamilton County	R	−23.2%	1,990	3,254	5,456
Hancock County	R	−29.1%	3,522	6,597	10,585
Hardin County	R	−13.1%	1,314	1,721	3,114
Henderson County	R	−19.6%	1,609	2,443	4,246
Henry County	R	−27.0%	7,977	14,506	24,206
Iroquois County	R	−51.4%	3,362	11,247	15,327
Jackson County	R	−0.9%	10,291	10,505	23,829
Jasper County	R	−30.3%	1,846	3,548	5,612
Jefferson County	R	−13.5%	6,761	8,972	16,340
Jersey County	R	−21.6%	3,324	5,266	8,985
Jo Daviess County	R	−28.0%	2,678	5,186	8,971
Johnson County	R	−33.0%	1,586	3,201	4,888
Kane County	R	−33.8%	29,015	64,106	103,784
Kankakee County	R	−22.5%	14,626	23,810	40,873
Kendall County	R	−48.1%	3,143	10,028	14,327
Knox County	R	−23.5%	8,749	14,907	26,198
Lake County	R	−29.2%	48,287	96,350	164,853
LaSalle County	R	−22.0%	16,818	27,323	47,835
Lawrence County	R	−18.1%	3,030	4,453	7,856
Lee County	R	−53.1%	3,170	11,373	15,438
Livingston County	R	−44.2%	4,111	11,544	16,823
Logan County	R	−40.1%	3,916	9,681	14,366
Macon County	R	−11.1%	22,325	28,298	53,956
Macoupin County	R	−13.5%	9,116	12,131	22,354
Madison County	R	−7.3%	43,860	51,160	100,124
Marion County	R	−21.3%	6,990	10,969	18,678
Marshall County	R	−36.4%	1,903	4,349	6,711
Mason County	R	−25.5%	2,680	4,644	7,693
Massac County	R	−20.1%	2,821	4,284	7,272
McDonough County	R	−33.6%	4,093	8,995	14,589
McHenry County	R	−41.4%	14,540	40,045	61,655
McLean County	R	−33.5%	13,587	30,096	49,232
Menard County	R	−36.7%	1,589	3,622	5,534
Mercer County	R	−19.5%	3,361	5,144	9,156
Monroe County	R	−32.2%	3,121	6,315	9,924
Montgomery County	R	−20.9%	5,721	8,947	15,415
Morgan County	R	−29.0%	5,483	10,406	16,997
Moultrie County	R	−18.9%	2,332	3,495	6,161
Ogle County	R	−44.9%	4,067	12,533	18,871
Peoria County	R	−23.4%	28,276	47,815	83,510
Perry County	R	−14.6%	4,337	5,888	10,610
Piatt County	R	−31.3%	2,421	4,867	7,818
Pike County	R	−17.2%	3,695	5,301	9,361
Pope County	R	−25.3%	880	1,501	2,455
Pulaski County	R	−3.1%	1,955	2,083	4,099
Putnam County	R	−23.5%	1,158	1,959	3,414
Randolph County	R	−17.8%	6,052	8,810	15,494
Richland County	R	−34.2%	2,463	5,241	8,126
Rock Island County	R	−6.6%	30,045	34,788	71,775
Saline County	R	−11.1%	5,683	7,157	13,265
Sangamon County	R	−23.5%	29,354	49,372	85,200
Schuyler County	R	−30.4%	1,445	2,799	4,460
Scott County	R	−34.5%	941	1,990	3,042
Shelby County	R	−22.5%	3,988	6,441	10,894
St. Clair County	D	+4.0%	50,046	46,063	100,673
Stark County	R	−45.9%	806	2,358	3,380
Stephenson County	R	−22.5%	6,195	10,779	20,388
Tazewell County	R	−32.9%	16,924	35,481	56,462
Union County	R	−6.0%	3,781	4,289	8,441
Vermilion County	R	−20.4%	14,498	22,579	39,567
Wabash County	R	−27.3%	1,975	3,571	5,837
Warren County	R	−32.1%	2,756	5,667	9,071
Washington County	R	−41.2%	2,158	5,354	7,762
Wayne County	R	−28.8%	3,258	6,013	9,557
White County	R	−20.0%	3,463	5,279	9,072
Whiteside County	R	−39.1%	7,191	17,389	26,064
Will County	R	−22.7%	41,975	69,310	120,658
Williamson County	R	−14.0%	10,779	14,451	26,228
Winnebago County	R	−15.6%	32,384	48,825	105,089
Woodford County	R	−47.4%	3,552	10,791	15,268