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Jim Nielsen

b. 1944

American politician from California

Politician Rancher
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About Jim Nielsen

Born 1944. Jim Nielsen is an American politician and rancher.

James Wiley Nielsen (born July 31, 1944) is an American politician from California who served in the California State Senate for the 4th district. A member of the Republican Party, Nielsen served on the Yolo County Republican Committee before first winning election to the California State Senate in 1978. Nielsen served in the State Senate until 1990, in the State Assembly from 2009 to 2012, and returned to the State Senate following a 2013 special election.

Early life and education On July 31, 1944, Nielsen was born in Fresno, California.

Nielsen has a bachelor's degree in Agricultural Business from California State University, Fresno.

Nielsen established himself as a traditional tough-on-crime conservative who championed the cause for lower taxes, controlled government spending and gun rights for law-abiding citizens. He authored legislation to promote welfare reform and reduce welfare fraud, including the acclaimed GAIN program, and he authored and coauthored bills to promote agricultural exports.

1990 defeat Nielsen was narrowly unseated by Democrat Mike Thompson, an aide to then Assemblywoman Jackie Speier. Thompson benefited from ethics issues and verbal gaffes made by the incumbent, as well as changing demographics in the district.

Post-senatorial career After leaving the legislature, Nielsen served on the Agriculture Labor Relations Board. In 1992, he was appointed to the Board of Parole and Prison Terms and served as its chairman from 1993 until 2000.

Residency questions A question of residency eligibility arose during his bid for the Assembly in 2008, because Nielsen owns 2 homes, one in the district he represents and one near the capitol. Nielsen won the case and even received a judgment for court costs in the amount of $7,400 against Plaintiff Don Bird. Plaintiff appealed to the Secretary of State who then deferred to the State Attorney General. After reviewing the case, the Attorney General issued a letter on December 22, 2008, stating there was no evidence to warrant further investigation and the matter was closed.

Expenditures Nielsen was also the largest taxpayer-funded gas card spender in the state legislature for 2010 costing $10,410.68

Personal life Nielsen's wife is Marilyn. They have five children.

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Important facts

Birth century
Occupation
Nationality
Education
California State University, Fresno
Positions held
Member of the California State Assembly, Member of the State Senate of California
Also known as
James Wiley Nielsen

People in Jim Nielsen's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped Jim Nielsen's

Frequently asked questions

Who is Jim Nielsen?

American politician from California

When was Jim Nielsen born?

Jim Nielsen was born on 31 July 1944 in Fresno.

What is Jim Nielsen's occupation?

Jim Nielsen is a politician and rancher.

What nationality is Jim Nielsen?

Jim Nielsen is American.

Sources & further reading

· Wikipedia: Jim Nielsen

· Wikidata: Q6197179

· DBpedia: Jim Nielsen

Cite this page

APA: Biography.guide. (2026). Jim Nielsen. https://biography.guide/jim-nielsen/

MLA: "Jim Nielsen." Biography.guide, https://biography.guide/jim-nielsen/.

Chicago: "Jim Nielsen." Biography.guide. https://biography.guide/jim-nielsen/.

Data last updated: 2026-09-21 · Spot an error? Report a correction.

Portrait: Wikimedia Commons · author & licence

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