Mosqueda has 57% of the votes as of Thursday afternoon.
Trailing is Kenneth Wilson with 18% of the vote, followed by Kate Martin.
A total of 10 candidates faced off in the primary election for the at-large position on the council.
The top two primary candidates advance to the general election in November.
Mosqueda raised at least $176,000 in donations and Democracy vouchers, well past any of her opponents.
Mosqueda was elected to the council in 2017 as a first-time candidate. She grew up in the Pacific Northwest and is a third-generation Mexican-American, and describes herself as the "daughter of educators and social justice activists."
The incumbent said she wants to "continue the work we’ve started to promote healthy communities, lift-up working families, build more affordable housing, and create an economy that works for all."
Among Mosqueda's proposed legislation is the recently-upheld payroll tax that will tax businesses that spend $7 million or more on payroll in the city.Read More