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Mark Costello

b. 1961

American politician

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About Mark Costello

Born 1961. Mark Costello is an American politician.

Mark Costello (born October 24, 1961) is the Iowa State Senator from the 8th District. A Republican, he has served in the Iowa Senate since being elected in 2014. He had also previously served in the Iowa House of Representatives from 2013–2014.

Biography Costello was born in Omaha, Nebraska but moved to Imogene, Iowa as a kid. He graduated from Nishna Valley High School before going on to attend the University of Northern Iowa, receiving a B.A. in computer information systems.

After college Costello worked five years as a computer analyst with Garst Seed Company based in Coon Rapids before eventually returning to work on his family farm.

He and his wife Rachel were married in 2001. They have five children.

Iowa House of Representatives Mark Costello (R-Imogene) was first elected to the Iowa House in 2012 representing the 23rd District.

Mark served as Vice Chair of the Iowa House Health & Human Resources Budget Subcommittee. His other committee assignments of the 85th General Assembly include Human Resources, State Government, Veterans Affairs, and Labor.

Iowa Senate He won the December 30, 2014 special election to replace Joni Ernst in the Iowa State Senate after she was elected to the U.S. Senate. Ernst's predecessor in the 12th Senate district, Kim Reynolds, also went on to be elected statewide as Governor.

As of February 2020, Costello serves on the following committees: Ethics (Chair), Agriculture, Appropriations, Human Resources, and Veterans Affairs. He also serves on the Health and Human Services Appropriations Subcommittee (Chair), as well as the Health Policy Oversight Committee, Administrative Rules Review Committee, and the Medical Assistance Advisory Council. turnout_votes = 3,183 result = winner = Mark Costello winner_party = Republican Party of Iowa winner_votes = 1,710 winner_percent = 53.72% candidate2 = Raymond Chase candidate2_party = Republican Party of Iowa candidate2_votes = 854 candidate2_percent = 26.83%

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Important facts

Birth century
Occupation
Nationality
Education
University of Northern Iowa
Positions held
Member of the Iowa House of Representatives, Member of the State Senate of Iowa

People in Mark Costello's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped Mark Costello's

Frequently asked questions

Who is Mark Costello?

American politician

When was Mark Costello born?

Mark Costello was born on 24 October 1961 in Omaha.

What is Mark Costello's occupation?

Mark Costello is a politician.

What nationality is Mark Costello?

Mark Costello is American.

Sources & further reading

Β· Wikipedia: Mark Costello

Β· Wikidata: Q6767161

Β· DBpedia: Mark Costello (Iowa politician)

Cite this page

APA: Biography.guide. (2026). Mark Costello. https://biography.guide/mark-costello/

MLA: "Mark Costello." Biography.guide, https://biography.guide/mark-costello/.

Chicago: "Mark Costello." Biography.guide. https://biography.guide/mark-costello/.

Data last updated: 2026-09-26 Β· Spot an error? Report a correction.

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