America’s middle class is always hustling — and now, they’re side hustling.

The share of Americans with more than one job has been steadily rising for the last several years, and is still hovering at elevated levels. But the population holding multiple jobs looks different from before the pandemic, with a growing cohort of more traditionally stable Americans now seeking multiple income streams.

The second job is no longer just a survival tactic for the lowest earners, or a nice income boost for the highest earners — it’s increasingly showing up for college-educated, middle-income Americans and the women of the workforce, who seem to be seeking…