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Mark Peterson

b. 1958

American politician

Lawyer District attorneyCouncil member
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About Mark Peterson

Born 1958. Mark Peterson is an American lawyer, district attorney and council member.

Mark A. Peterson is an American Republican politician who served as the district attorney for Contra Costa County in California from 2010 to 2017. Peterson resigned after a scandal involving the use of campaign funds for personal use.

Early life and education Peterson was raised in Anchorage, Alaska. He obtained a Bachelors of Arts degree in history from the University of Colorado, and went on to earn a Juris Doctor degree from the University of Denver law school.

Early political career Prior to being elected district attorney for Contra Costa County, Peterson served on the city council of Concord, California. He was first elected to the Concord City Council in 1995, and served on the council until 2010, when he resigned to take over as district attorney for Contra Costa County. During his tenure on the Concord City Council, he served as mayor three times.

District attorney Peterson was elected to the position of district attorney of Contra Costa County in 2010. In 2014 he was re-elected, running unopposed.

Scandal In December 2016 Peterson admitted that between 2011 and 2015 he used $66,372 from his campaign account for personal expenses such as groceries, jewelry store bills and movie tickets over 600 times. He had to pay a $45,000 fine to the California Fair Political Practices Commission. Peterson fully reimbursed his campaign account after being audited by tax authorities. In June 2017, Xavier Becerra, the California Attorney General, opened a criminal investigation against Peterson. On June 14, 2017, Peterson pleaded no contest to one count of perjury as part of a plea bargain agreement in which all 12 other charges were dropped. As part of his plea agreement, he resigned. His sentence carried three years of probation and 250 hours of community service.

Electoral history

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Important facts

Born
1958
Birth century
Nationality
Positions held
Mayor of Concord, California

People in Mark Peterson's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped Mark Peterson's

Frequently asked questions

Who is Mark Peterson?

American politician

When was Mark Peterson born?

Mark Peterson was born in 1958.

What is Mark Peterson's occupation?

Mark Peterson is a lawyer, district attorney and council member.

What nationality is Mark Peterson?

Mark Peterson is American.

Sources & further reading

Β· Wikipedia: Mark Peterson

Β· Wikidata: Q30611937

Β· DBpedia: Mark Peterson (district attorney)

Cite this page

APA: Biography.guide. (2026). Mark Peterson. https://biography.guide/mark-peterson-lawyer/

MLA: "Mark Peterson." Biography.guide, https://biography.guide/mark-peterson-lawyer/.

Chicago: "Mark Peterson." Biography.guide. https://biography.guide/mark-peterson-lawyer/.

Data last updated: 2026-09-20 Β· Spot an error? Report a correction.

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