Cr Tracey Hargreaves was photographed in the crowd, which was estimated by Victoria Police at 500.

The councillor has consistently refused to confirm her vaccination status, forcing City of Ballarat meetings to be held via camera link as well as in person for the present time.

"The appropriateness of Tracey Hargreaves' attendance is a question that only she can answer," Mr King said, in a statement to The Courier.

"There is nothing in City of Ballarat's Councillor Code of Conduct (2021), nor in the Local Government Act 2020, that would preclude Tracey Hargreaves as a private citizen attending the rally.

"The Councillor Code of Conduct specifically relates to activities pertaining to '... performing the role of a Councillor...'.

"On this occasion Tracey Hargreaves was not in any way acting in her Councillor capacity, nor was she representing Ballarat City Council.

"The rally was not subject to any current health directions; therefore, Ms Hargreaves' attendance did not breach any Victorian Government health directions."

Emails sent to The Courier have questioned the prudence of Cr Hargreaves's being at the rally, given the disruption it caused.

At least one Ballarat business was targeted on social media for voicing opposition to the rally, with Awake Ballarat members suggesting it be given negative Google reviews for its view, which described the rally as a 'tantrum'.

A counter-campaign to support the business in its stance started soon after.

"This unwanted protest lead to the vast majority of Ballarat businesses having to close their doors for the day - what was South Ward Councillor Tracey Hargreaves doing participating in this unwanted and disruptive event?" one letter writer said.

Cr Hargreaves was elected in 2020.

The Courier has sent the councillor questions regarding her attendance.

A survey of 500 Ballarat residents conducted by The Courier in November found over 90 per cent were in favour of councillors being fully vaccinated in their role as representatives of their ward constituents.