John McCain carried Arizona R+8.5.

Barack Obama (D) vs John McCain (R) in Arizona, 2008. The state ran 15.8 points more Republican than the nation (D+7.3 nationally).

Nominees: Barack Obama (D) · John McCain (R)

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Arizona result

2,293,475 votes counted

Obama (D)

1,034,707

45.1%

McCain (R)

1,230,111

53.6%

All others

28,657

1.2%

Margin

R+8.5

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2008 presidential election

Arizona, 2008

McCainR+8.5

How it voted

Share of the 2008 vote

John McCain ✓Republican	53.6%	1,230,111
Barack ObamaDemocratic	45.1%	1,034,707
OtherAll other candidates	1.2%	28,657

D+60

R+60

15 counties, each filled by 2008 D-vs-R margin. Hover any county for its result.

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Arizona's presidential margins

1912–2024, the 2008 contest in context

Arizona's presidential margins

Year	Margin (D minus R)
1912	+30.8%
1916	+21.8%
1920	−11.2%
1924	−5.8%
1928	−15.3%
1932	+36.5%
1936	+42.9%
1940	+27.5%
1944	+17.9%
1948	+10.0%
1952	−16.7%
1956	−22.1%
1960	−11.1%
1964	−0.8%
1968	−19.8%
1972	−31.3%
1976	−16.6%
1980	−32.4%
1984	−33.9%
1988	−21.2%
1992	−2.0%
1996	+2.2%
2000	−6.3%
2004	−10.5%
2008	−8.5%
2012	−9.0%
2016	−3.5%
2020	+0.3%
2024	−5.5%

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County results — 2008

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

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County	Won	Margin	Democratic	Republican	Total
Apache County	D	+28.2%	15,390	8,551	24,262
Cochise County	R	−20.7%	18,943	29,026	48,820
Coconino County	D	+17.0%	31,433	22,186	54,344
Gila County	R	−27.8%	7,884	14,095	22,333
Graham County	R	−40.7%	3,487	8,376	12,007
Greenlee County	R	−18.8%	1,165	1,712	2,913
La Paz County	R	−28.5%	1,929	3,509	5,552
Maricopa County	R	−10.6%	602,166	746,448	1,364,962
Mohave County	R	−32.9%	22,092	44,333	67,605
Navajo County	R	−11.7%	15,579	19,761	35,800
Pima County	D	+6.1%	206,254	182,406	393,428
Pinal County	R	−14.5%	44,254	59,421	104,883
Santa Cruz County	D	+31.3%	8,683	4,518	13,303
Yavapai County	R	−24.4%	36,889	61,192	99,648
Yuma County	R	−13.8%	18,559	24,577	43,615