WASHINGTON — The number of Americans applying for unemployment benefits rose by 61,000 last week to 719,000, signaling that many employers are still cutting jobs even as more businesses reopen, vaccines are increasingly administered and federal aid spreads through the economy.

The Labor Department said Thursday that the number of claims increased from 684,000 the week before. Though the pace of applications has dropped sharply since early this year, they remain high by historical standards: Before the pandemic flattened the economy a year ago, jobless claims typically ran below 220,000 a week.

Still, the four-week average of claims, which smooths out week-to-week gyrations, fell by 10,500 to 719,000 — the fewest since mid-March 2020, just before the pandemic began to cause widespread layoffs.

All told, 3.8 million people were collecting traditional state benefits during the week ending March 20. If you include federal programs that are meant to help the unemployed, 18.2 million people were receiving some type of jobless aid in the week that ended March 13. That’s down from 19.7 million in the previous week.

Economists monitor weekly applications for unemployment aid for early signs of where the job market is headed. Applications generally reflect the rate of layoffs, which normally fall steadily as a job market strengthens. During the pandemic, though, the numbers have become less reliable as states have struggled with application backlogs and allegations of fraud have clouded the actual volume of job cuts.

Even so, measures of the overall economy show clear improvement from the collapse last spring. The number of new confirmed COVID-19 cases has dropped from an average of about 250,000 a day in early January to below 70,000.