Home Β· Learn Β· US Swing States: Which Ones, Why They Matter

The 7 swing states that pick the next president

The battleground map explained: which states swing, why they swing, the 2020 and 2024 margins, and how the Electoral College math actually works.

Forty-three states are not competitive in a presidential year. California votes Democratic, Wyoming votes Republican, and the polling barely moves. The election is decided in seven states where the two parties run within a few percentage points of each other, and where a shift of a hundred thousand votes can change the White House. Those seven, as of the 2024 cycle, are Pennsylvania, Michigan, Wisconsin, Arizona, Georgia, Nevada, and North Carolina.

The 7 swing states, ranked by electoral votes

Electoral vote totals reflect the reapportionment that followed the 2020 census and apply to the 2024 and 2028 elections. Together these seven states control 93 electoral votes, more than one-third of the 270 needed to win.

StateElectoral votesRegionCapital
Pennsylvania19NortheastHarrisburg
Georgia16SoutheastAtlanta
North Carolina16SoutheastRaleigh
Michigan15MidwestLansing
Arizona11SouthwestPhoenix
Wisconsin10MidwestMadison
Nevada6WestCarson City

Three of the seven, Pennsylvania, Michigan, and Wisconsin, are called the Blue Wall. They voted Democratic in every presidential election from 1992 through 2012, flipped to Trump in 2016, went for Biden in 2020, and returned to Trump in 2024. The other four, Arizona, Georgia, Nevada, and North Carolina, are Sun Belt states where demographic change has made statewide races competitive for the first time in a generation.

2020 and 2024 margins, side by side

The size of a swing state margin tells you how much campaigning it took to move the state. In 2020 the margins were tiny; in 2024 they were wider, but still nothing like a landslide.

State2020 margin2024 margin2024 winner
ArizonaBiden +0.31%Trump +5.5%Trump
GeorgiaBiden +0.24%Trump +2.2%Trump
WisconsinBiden +0.63%Trump +0.9%Trump
PennsylvaniaBiden +1.17%Trump +1.7%Trump
NevadaBiden +2.39%Trump +3.1%Trump
MichiganBiden +2.78%Trump +1.4%Trump
North CarolinaTrump +1.35%Trump +3.2%Trump

The 2020 Arizona margin, 10,457 votes out of more than 3.3 million cast, is the closest statewide presidential result of the modern era outside Florida in 2000. Georgia in the same cycle was decided by 11,779 votes, the number Trump would later ask Secretary of State Brad Raffensperger to "find" in a January 2021 phone call.

Why these seven, and not others

Swing states share three ingredients: a competitive party balance, no dominant urban center that swamps the rest of the state, and an economy diverse enough that neither the industrial-labor coalition nor the professional-class coalition wins outright.

States that used to swing and no longer do

The battleground map is not fixed. Three states that decided elections in the 2000s and 2010s have moved out of reach for one of the two parties:

Meanwhile, Democrats hope Texas (40 electoral votes) and Republicans hope Minnesota (10 electoral votes) or New Hampshire (4) will move into the tossup column. Neither has, yet. Texas presidential margins have narrowed from 16 points in 2012 to 6 in 2020 and 13 in 2024, moving in the wrong direction for Democrats. Minnesota has voted Democratic in every presidential election since 1976, the longest streak of any state.

The Electoral College math, in one paragraph

A candidate needs 270 of 538 electoral votes to win. Reliably Democratic states plus the District of Columbia hold 226 electoral votes if you count Virginia, New Mexico, Colorado, Minnesota, New Hampshire, and Maine as safe. Reliably Republican states hold 219, counting Florida, Ohio, Texas, and Iowa. That leaves 93 votes across the seven swing states. A candidate who wins Pennsylvania, Michigan, and Wisconsin (the Blue Wall, 44 votes) plus one more swing state gets past 270. A candidate who sweeps the Sun Belt four (Arizona, Georgia, Nevada, North Carolina, 49 votes) still needs one Blue Wall state. The paths are narrow either way.

Learn the swing states by playing

Statedoku uses swing state clues as puzzle constraints: 2024 winner, electoral vote count, capital city. Play the daily puzzle and the map sticks.

Play the swing states puzzle β†’

Related guides

Test yourself

Swing States

Try the Swing States quiz

Play β†’