The female equivalent would be "councilwomen", but I'd suggest that you use the generic "councillors" as a non-gender-specific alternative.
Councilmen represents the citizens of the city. They introduce and pass ordinances, and oversee the day to day operations and the budget of the city.
The Nashville metro government Is called the Metro Government of Nashville & Davidson County. The Metro Council includes councilmen from 35 districts plus 6 at large councilmen. Almost all of the councilmen represent Nashville.
Councilor as a generic none gender or councilwomen
blonde
feminine
femine
goddess
I believe it is councilmen
"Countess".
heroine
Transexual
Hero?