RIVERSIDE, Calif. (KABC) -- In Riverside County, a handful of polling places were starting to see long lines by the afternoon and early evening on Election Day.
In the morning, most polling places were fairly slow with no lines. But by late afternoon, the registrar's office determined that at least five locations were busy enough that they needed extra machines brought in.
The lines were not the result of any glitches, elections officials said.
"The information we got back was that voters were simply taking longer on the electronic voting machines," said Riverside County Public Information Officer Brooke Federico.
At places like the Orangecrest community center in Riverside, dozens of voters could be seen standing patiently outside in a line stretching around the parking lot. And at the county registrar's office, there was a long line of cars waiting to drop off their mail-in ballots in person.
It's a contrast to some of the issues the county saw during early voting over the weekend when glitches were causing delays at some locations.
RELATED: Some Riverside County voting sites experience delays due to tech issues
Officials say many people in the county took advantage of early voting, which may be contributing to the lower turnout on Election Day itself.
"One thing that's is important to note is that for this election, we had all 130 voter assistance centers open on Saturday, Sunday and yesterday, so there's a lot of early voting that has happened," Federico said.
The county has already received 52% of mail-in ballots, according to officials.
"At this point, we have record-breaking turnout compared to early voting in prior elections," Federico said.
While there are fewer polling places in the county this year, all have been open since Saturday, so there have been more opportunities to vote.
However, only about 5% of the votes cast as of Tuesday morning were made in-person. The rest were mail-in ballots. But by noon, more people had voted on Tuesday than had cast ballots all day on Monday at the early voting centers.
In San Bernardino County, elections officials say voting at the registrar's office got so busy that physical distancing was a concern. An overflow polling place was opened at the airport. A spokesperson said even with the long lines, voting only took about 15 minutes.
Perris resident Jennifer Day said for her, voting on the presidential race was the priority.
Day said she never received her mail-in ballot, which was possibly sent to an old address. So she voted in-person.
"It was important for me because my boys were pushing it, first of all. Also, I want to be a part of what's going on. I can't complain about something if I'm not helping to make the change," Day said.
The Riverside County registrar's office told Eyewitness News if someone tried to vote with Day's missing mail-in ballot, the signature would be checked and thrown out. It could also be voided now that Day has told election officials that her ballot may have been sent to an old address. There could be potential charges, including fraud, brought against someone who tries to cast another person's ballot.