Current Howard County Councilmember David Yungmann (District 5) has filed to run for reelection in 2022. Here is the filing from November 3rd:
You can view all local filings in Howard County here: https://elections.maryland.gov/elections/2022/primary_candidates/gen_cand_lists_2022_2_by_county_14.html
In 2018 David Yungmann won the Republican Primary with 60% of the vote:
David Yungmann won the General with nearly 54% of the vote:
David tells me he is planning a kick off event after the holidays. I will keep an eye out for that announcement.