The sprawling Fremont campus where Tesla makes its cars will take the brunt of the company layoffs, Tesla said in public notices filed with the state of California.

The electric carmaker will terminate more than a thousand positions from its workforce in Northern California, as part of an announced round of layoffs affecting more than 3,200 full-time employees. The company laid off about 9 percent of its workforce in June, though that round mostly spared production-line workers at its Fremont manufacturing plant.

Tesla said in new papers submitted to the state’s Employment Development Department last week that it will lay off 802 workers in Fremont, 78 workers at its Palo Alto headquarters and 137 at its warehouses in Lathrop (San Joaquin County).

Those employees will be dismissed on a rolling basis starting March 20, it said.

In Fremont, the job cuts spanned across departments from human resources to quality assurance to delivery experience. The most common roles cut were sales advisers, service technicians, production associates and manufacturing supervisors.

Jeffrey Osborne, a senior research analyst covering energy at the Cowen investment bank, said in an email that the categories of positions cut appeared to be “really across the board,” which makes it tough to figure out which product line, feature or service is affected more than another.

Elon Musk told workers in an email last month that the job cuts were critical to bring down production costs. Tesla shipped nearly as many cars in 2018 as it did in the first 15 years of its existence combined, but it still needs to reach many more customers who can afford its vehicles to stay viable.

“We’re up against massive, entrenched competitors,” Musk wrote. “The net effect is that Tesla must work much harder than other manufacturers to survive while building affordable, sustainable products.”

The year ahead holds Tesla’s most difficult challenge yet, analysts have said, as the company looks to increase production while — somewhat counterintuitively — its workforce shrinks. Advances in engineering will automate parts of manufacturing and replace some workers on the factory floor.

In an indication of the cost pressures on the company, Tesla cut $1,100 from the base price of its mass-market Model 3 sedan Wednesday. The electric car company now says on its website that the car starts at $42,900, still a ways from its goal of lowering the base price to $35,000. For $42,900 buyers will get a rear-wheel-drive Model 3 in black with Tesla’s lower-range battery that goes 264 miles per charge.

The price doesn’t include federal and state tax credits. The federal credit is now $3,750, but that expires at the end of the year.

There are nearly 100 job openings at the Fremont manufacturing plant, including a data scientist, a senior automation specialist and a robot engineer. That last job is to “build machine that builds the machine,” a job description on Tesla’s website reads.

The Associated Press contributed to this report.

Melia Russell is a San Francisco Chronicle staff writer. Email: melia.russell@sfchronicle.com Twitter: @meliarobin