Mary Ziemer is the Council Member, Brookhaven Borough, in Delaware County, Pennsylvania. Elected as a Democrat.

What party is Mary Ziemer?

Mary Ziemer was elected as a Democrat; the office is elected on a partisan ballot.

Where does Mary Ziemer stand politically?

There's no published left–right score for Mary Ziemer. Most local officials have none: academic scores come from votes in Congress or a state legislature, or from campaign donors, and we don't guess.

Who is Mary Ziemer? Council Member, Brookhaven Borough, PA

Mary Ziemer is the Council Member, Brookhaven Borough, elected as a Democrat.

In office

Office	Who holds it now
Council Member · Brookhaven Borough Council	Mary Ziemer Democratic source

Brookhaven Borough Council's website (contact the office there) · everyone on it

Where Mary Ziemer stands

No published left–right score. Most local officials don't have one: the academic scores come from votes in Congress or a state legislature, or from who donates to a campaign, and we don't guess. They were elected on a partisan ballot as a Democrat.

Quick answers

Who is Mary Ziemer?: Mary Ziemer is the Council Member, Brookhaven Borough, in Delaware County, Pennsylvania. Elected as a Democrat.
What party is Mary Ziemer?: Mary Ziemer was elected as a Democrat; the office is elected on a partisan ballot.
Where does Mary Ziemer stand politically?: There's no published left–right score for Mary Ziemer. Most local officials have none: academic scores come from votes in Congress or a state legislature, or from campaign donors, and we don't guess.

Are you Mary Ziemer?

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Officeholders as of November 6, 2026, from the Pennsylvania Department of Community and Economic Development's Municipal Statistics officials list (self-reported by each county and municipality); each name links to its source. Officials change between elections (appointments, resignations), and the body's own website is the authority. Party is shown only for offices elected on a partisan ballot.

Delaware County's elected officials · Brookhaven Borough's officials

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