Both Lake and Porter counties have seen an influx of voter registrations ahead of the Monday night deadline, officials said.

In Lake County, 1,397 people registered to vote from Friday to Sunday over the final weekend before the voter registration deadline, according to county data.

In Porter County, election office staff have processed almost 13,000 registrations since the primary, of which about 3,000 are new registrations, said Porter County Elections & Registration Director Sundae Schoon. Staff still had 600 registrations to process as of Monday afternoon and “loads of people are registering daily,” Schoon said.

Staff have been working hard, with some overtime, to process the voter registrations, said Lake County Board of Elections and Registration Director Michelle Fajman and Schoon.

Voters had until 11:59 p.m. Monday to register to vote either in person before election offices close, by mail or online at indianavoters.in.gov. All registrations filed before Monday night will be processed ahead of Election Day, Fajman said.

“Now is when you have to take action,” Fajman said. “If you want to have a voice in your government, you have to register to vote.”

Early voting starts Tuesday with 11 polling locations in Lake County and seven polling locations in Porter County.

In Porter County, the early voting locations are:

The Porter County Administrative Building, 155 Indiana Avenue Suite 102A in Valparaiso

NIRPC Building, 6100 Southport Road in Portage

Valparaiso Fire Training Center, 355 Evans Avenue in Valparaiso

North County Complex, New Building, 3560 Willowcreek Road in PortageUnion Township Fire Station #2, 267 N 600 W, Valparaiso

Duneland YMCA Healthy Living Campus, 651 W. Morgan Avenue in Chesterton

Hebron Community Center, 611 N. Main Street in Hebron

Porter County voters can cast their ballots from 8:30 a.m. to 3:30 p.m. on Mondays, Wednesdays and Fridays or from 11 a.m. to 7 p.m. on Tuesdays and Thursdays.

Voters can also cast their ballots from 8:30 a.m. to 3:30 p.m. the last two Saturdays before Election Day and from 8:30 a.m. to 12 p.m. the Monday before Election Day. Porter County will also offer mobile voting:

4 p.m. to 7 p.m. Tuesdays at Kouts Public Library, 101 E. Daumer Road in Kouts

4 pm. To 7 p.m. Thursdays at Lukes Gas Station, 6259 Melton Road in Portage

10 a.m. to 3 p.m. Oct. 26 at Jamestown, 2810 Winchester Drive in Valparaiso

10 a.m. to 3 p.m. Nov. 2 at South Haven Public Library, 403 W. 700 N in Valparaiso

In Lake County, the early voting locations are:

Lake County Board of Elections & Registration Office, 2293 N. Main Street Room A-205 in Crown Point.

East Chicago County Courthouse, 3711 Main Street in East Chicago

Gary Public Library and Cultural Center, 220 W. 5th Avenue in Gary

Hammond County Courthouse, 232 Russell Street in Hammond

Hobart Police Department, 705 E. 4th Street in Hobart

Lowell Town Hall, 501 E. Main Street in Lowell

Munster Town Hall, 1005 Ridge Road in Munster

Schererville Town Hall, 10 E. Joliet Street in Schererville

St. John Township Assessor’s Office, 9157 Wicker Avenue in St. John

Wicker Park Breezeway, 8554 Indianapolis Boulevard in Highland

Winfield Government Center, 10645 Randolph Street in Crown Point

For early voting at the Lake County election office, voters can cast their ballots Monday through Friday from 8:30 a.m to 4:30 p.m. with extended hours Thursday until 7 p.m. Voters can go to that location the two Saturdays before Election Day from 9 a.m. to 4 p.m. and the Monday before Election Day from 8:30 a.m. to 12 p.m. At the other 10 Lake County early voting locations, voters can cast their ballots from 9 a.m. to 3 p.m. Monday through Friday with extended hours from Thursday until 7 p.m. Those polling locations will be open from 9 a.m. to 3 p.m. the two Saturdays before Election Day and 9 a.m. to 12 p.m. the Monday before Election Day.

All Lake County early voting locations will be closed Oct. 14 for Columbus Day.

akukulka@chicagotribune.com