President Barack Obama won California's 55 electoral votes on Tuesday, defeating Republican Mitt Romney.
In the 2008 presidential election, the state voted for the Democratic candidate, and since the 1990s has voted for the overall winner of the presidential race three out of five times.
Romney and Obama visited California frequently to raise funds during the campaign, but the state has typically been a Democratic stronghold in recent presidential elections.
The economy was a key issue for many voters in the state, but voter support for the president remained strong.
"It's incredibly important that Barack Obama gets another chance because no other president has inherited the mess for a lack of a better word that he inherited... if he wasn't blocked like he was in his first four years, now he might actually have a chance to do something," said Scarlett Savage of Santa Monica.
