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Missouri Rep. Mike Costlow (R)

108th district

Email Address: mike.costlow@house.mo.gov

Phone: (573) 751-3572

Office Address:
201 West Capitol Avenue
Room 115-J
Jefferson City, MO

Representative Mike Costlow, a Republican, proudly represents part of St. Charles County (District 108) in the Missouri House of Representatives. He was elected to his first two-year term in November 2024.
A Jacksonville, FL native, Rep. Costlow graduated from Lowndes County High School in 2005 and earned an MBA from Western Governors University in 2018.
Before joining the House, Rep. Costlow served as an alderman and board president for Dardenne Prairie, where he championed fiscal responsibility and passed safety measures to protect residents. Rep. Costlow intends to carry similar issues in the legislature, focusing on supporting economic growth, removing politics from classrooms, expanding school choices for families, and defending Missourians against federal overreach. He is dedicated to serving with integrity to ensure a bright future for Missouri.
Rep. Costlow is a family man, married to his wife, Jaycee, and enjoys spending his free time with her and their five children: Michael, Emily, Hanna, Elias, and Henry.

MO - Children and Families (House)

Title:

Member

MO - Utilities (House)

Title:

Member

MO - Special Committee on Tax Reform (House)

Title:

Member

MO - HB1593 Modifies provisions relating to transportation network companies and establishes the offense of impersonating a transportation network company driver

MO - HB1002 Modifies provisions for underground facilities notification requirements

MO - HB1594 Authorizes a transient guest tax for the promotion of tourism in any municipality upon voter approval

MO - HB1592 Modifies provisions relating to the sexual offender registry

MO - HJR64 Proposes a constitutional amendment granting homestead and personal property tax exemptions to certain veterans proportional to the veteran's disability rating

MO - HB134 Establishes the MO Task Force on Nonprofit Safety and Security

MO - HB549 Requires every school district to comply with enhanced safety and security standards

MO - HB548 Modifies provisions relating to firearm suppressors

MO - HB1228 Establishes the Defend the Guard Act

MO - HJR81 Proposes a constitutional amendment to assert the right of parents to participate in and direct the education of their children free from government interference

MO - HB1177 Enacts the "Missouri Homeowners' Association Act"

MO - HB1471 Modifies the age of consent

MO - HB1229 Modifies provisions relating to certain convention and sports facility authorities

MO - HB1444 Creates provisions relating to an option to opt out of coverage under the Missouri consolidated health care plan and receive an annual stipend instead

MO - HB1557 Adds provisions relating to the offense of stealing

MO - HB1558 Modifies provisions relating to unlawful discriminatory practices

MO - HB60 Modifies when a registration-inspection certificate can be granted based on the grantees handling of certain nonnative invasive plant species

MO - HB78 Grants the air conservation commission the authority to create standards and guidelines

MO - HB236 Establishes provisions relating to civil liability for publishing or distributing material harmful to minors on the internet

MO - HB495 Modifies provisions relating to public safety

MO - HB530 Creates provisions relating to health care provider participation in health insurance plans

MO - HB664 Requires the general assembly to approve proposed administrative rules

MO - HB927 Establishes provisions relating to fathership

MO - HB986 Modifies provisions relating to the list of diseases required to be reported to the department of health and senior services

MO - HB1353 Bans pesticides and pesticide ingredients that were made in China

MO - HJR54 Proposes a constitutional amendment establishing provisions relating to reproductive health care

MO - HCR4 Designates the last week in April each year as "Infertility Awareness Week"

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