Harry S. Truman carried Illinois D+0.8.

Harry S. Truman (D) vs Thomas E. Dewey (R) in Illinois, 1948. The state ran 3.6 points more Republican than the nation (D+4.5 nationally).

Nominees: Harry S. Truman (D) · Thomas E. Dewey (R) · Strom Thurmond (States' Rights Democratic)

akashic

Illinois result

3,984,046 votes counted

Truman (D)

1,994,715

50.1%

Dewey (R)

1,961,103

49.2%

Thurmond + others

28,228

0.7%

Margin

D+0.8

akashic

1948 presidential election

Illinois, 1948

TrumanD+0.8

How it voted

Share of the 1948 vote

Harry S. Truman ✓Democratic	50.1%	1,994,715
Thomas E. DeweyRepublican	49.2%	1,961,103
OtherAll other candidates	0.7%	28,228

D+60

R+60

102 counties, each filled by 1948 D-vs-R margin. Hover any county for its result.

akashic

Illinois's presidential margins

1892–2024, the 1948 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%

akashic

County results — 1948

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

akashic

County	Won	Margin	Democratic	Republican	Total
Adams County	D	+2.1%	14,960	14,329	29,441
Alexander County	D	+0.9%	4,641	4,561	9,298
Bond County	R	−9.3%	2,837	3,438	6,483
Boone County	R	−43.2%	1,941	4,916	6,882
Brown County	D	+7.2%	1,805	1,562	3,389
Bureau County	R	−26.7%	6,463	11,207	17,748
Calhoun County	R	−5.1%	1,377	1,526	2,923
Carroll County	R	−30.6%	2,809	5,318	8,189
Cass County	D	+5.3%	3,776	3,391	7,217
Champaign County	R	−24.1%	11,572	19,156	31,465
Christian County	D	+10.5%	9,366	7,576	17,062
Clark County	R	−9.2%	3,714	4,477	8,303
Clay County	R	−8.8%	3,160	3,782	7,108
Clinton County	R	−3.6%	4,773	5,128	9,963
Coles County	R	−1.4%	8,393	8,638	17,084
Cook County	D	+8.9%	1,216,636	1,015,800	2,245,899
Crawford County	R	−10.3%	4,150	5,111	9,364
Cumberland County	R	−2.0%	2,353	2,451	4,832
De Witt County	R	−11.8%	3,290	4,178	7,513
DeKalb County	R	−38.0%	5,082	11,380	16,567
Douglas County	R	−18.1%	2,893	4,181	7,129
DuPage County	R	−48.6%	15,528	45,794	62,238
Edgar County	R	−10.1%	5,121	6,282	11,470
Edwards County	R	−34.1%	1,206	2,491	3,770
Effingham County	D	+1.2%	4,940	4,823	9,859
Fayette County	D	+0.5%	5,771	5,717	11,608
Ford County	R	−40.3%	2,079	4,903	7,015
Franklin County	D	+10.9%	11,750	9,407	21,444
Fulton County	R	−7.1%	8,226	9,504	17,933
Gallatin County	D	+14.2%	2,385	1,789	4,200
Greene County	D	+5.1%	4,035	3,639	7,727
Grundy County	R	−29.2%	3,255	5,954	9,240
Hamilton County	R	−2.4%	2,750	2,887	5,669
Hancock County	R	−12.0%	5,559	7,098	12,779
Hardin County	R	−11.5%	1,358	1,713	3,087
Henderson County	R	−22.7%	1,465	2,336	3,838
Henry County	R	−18.4%	8,489	12,363	21,011
Iroquois County	R	−30.2%	4,823	9,051	14,001
Jackson County	R	−8.8%	6,939	8,288	15,408
Jasper County	R	−0.4%	2,936	2,957	5,943
Jefferson County	D	+9.4%	8,928	7,393	16,321
Jersey County	D	+1.2%	3,092	3,021	6,139
Jo Daviess County	R	−24.3%	3,220	5,299	8,570
Johnson County	R	−29.4%	1,510	2,778	4,309
Kane County	R	−29.7%	21,176	39,284	60,992
Kankakee County	R	−16.2%	11,305	15,699	27,201
Kendall County	R	−44.0%	1,517	3,925	5,469
Knox County	R	−21.0%	9,772	15,016	24,952
Lake County	R	−27.7%	22,192	39,456	62,368
LaSalle County	R	−10.8%	19,666	24,453	44,440
Lawrence County	R	−0.9%	4,391	4,472	9,057
Lee County	R	−34.5%	4,368	9,001	13,441
Livingston County	R	−33.0%	5,618	11,184	16,876
Logan County	R	−21.1%	4,832	7,431	12,312
Macon County	D	+6.8%	21,487	18,719	40,456
Macoupin County	D	+6.9%	11,742	10,198	22,298
Madison County	D	+23.9%	40,897	25,059	66,306
Marion County	D	+6.4%	8,878	7,798	16,884
Marshall County	R	−20.1%	2,514	3,785	6,318
Mason County	R	−0.3%	3,503	3,525	7,074
Massac County	R	−26.5%	1,842	3,201	5,125
McDonough County	R	−31.1%	4,206	8,058	12,373
McHenry County	R	−47.4%	5,459	15,387	20,949
McLean County	R	−17.5%	12,904	18,430	31,517
Menard County	R	−17.2%	2,043	2,899	4,968
Mercer County	R	−25.5%	3,117	5,267	8,420
Monroe County	R	−25.3%	2,026	3,403	5,432
Montgomery County	R	−2.7%	7,902	8,348	16,455
Morgan County	R	−10.5%	6,798	8,398	15,255
Moultrie County	R	−0.1%	3,037	3,043	6,161
Ogle County	R	−42.8%	3,796	9,519	13,378
Peoria County	R	−6.0%	31,026	35,018	66,352
Perry County	R	−0.6%	5,043	5,109	10,226
Piatt County	R	−21.2%	2,361	3,646	6,064
Pike County	D	+9.1%	5,674	4,722	10,494
Pope County	R	−31.5%	916	1,764	2,696
Pulaski County	R	−6.2%	2,344	2,658	5,033
Putnam County	R	−21.4%	905	1,405	2,336
Randolph County	R	−0.1%	6,852	6,867	13,781
Richland County	R	−22.5%	2,438	3,884	6,413
Rock Island County	D	+5.0%	24,542	22,192	47,211
Saline County	D	+0.3%	7,718	7,676	15,485
Sangamon County	R	−7.1%	29,196	33,714	63,273
Schuyler County	R	−1.1%	2,464	2,519	5,074
Scott County	R	−2.9%	1,735	1,840	3,588
Shelby County	D	+2.8%	5,589	5,282	11,029
St. Clair County	D	+27.3%	54,260	30,883	85,617
Stark County	R	−37.1%	1,163	2,537	3,707
Stephenson County	R	−17.4%	7,409	10,564	18,122
Tazewell County	D	+6.1%	14,131	12,504	26,778
Union County	D	+7.3%	4,479	3,864	8,398
Vermilion County	R	−7.9%	16,173	18,994	35,646
Wabash County	R	−1.0%	2,857	2,916	5,898
Warren County	R	−33.1%	3,367	6,738	10,179
Washington County	R	−24.7%	2,737	4,544	7,330
Wayne County	R	−10.0%	4,070	4,984	9,114
White County	D	+2.8%	4,761	4,498	9,338
Whiteside County	R	−41.5%	5,299	12,922	18,375
Will County	R	−3.9%	26,430	28,601	55,628
Williamson County	R	−2.7%	9,841	10,386	20,357
Winnebago County	R	−4.2%	27,145	29,537	57,313
Woodford County	R	−25.2%	3,446	5,784	9,276