Hong will face Republican real estate intern Patrick Hull in the November election.
If she wins, she would be the first Asian American to serve in the Legislature.
Samba Baldeh was the top vote-getter in the four-way Assembly District 48 race on Madison’s Far East and North sides to replace Sargent.
He will face Republican Samuel Anderson in November in the heavily Democratic district.
He is in his third term as an alder representing Madison’s 17th District.