St. Clair County Sex Offenders

St. Clair County sex offender information is publicly accessible through the Michigan Public Sex Offender Registry, maintained statewide by the Michigan State Police. The St. Clair County Sheriff's Office in Port Huron handles all local sex offender registration. You can search by name, address, or zip code to find registered sex offenders living, working, or attending school in St. Clair County. Michigan law requires all registrants to keep their personal and address information current, and those updates are reflected in the public registry as they are submitted to the sheriff's office.

Find St. Clair County Sex Offenders Online

Use the Michigan PSOR search tool to look up registered sex offenders in St. Clair County. The search is free and open to the public. You can enter a name to find a specific person, or search by zip code or address to see all registrants near a given location. Selecting St. Clair County from the county filter will show all active registrants with a St. Clair County address on record.

Each result shows the registrant's full name, a current photo, their home address, and any secondary locations they have reported. You will also see the offense category, the tier level assigned by the state, and vehicle information. St. Clair County sits in the Thumb region along the St. Clair River and Lake Huron shoreline. It is one of the larger counties in that part of the state, so the number of active registrants is substantial. The registry covers all of them and is updated as required by state law.

The PSOR homepage provides background on how the registry works and what information it includes. All registry data originates from local sheriffs' offices and Michigan Department of Corrections records.

The Michigan State Police operates the public sex offender search tool shown below, which covers all counties including St. Clair.

The search costs nothing and can be used at any time without creating an account.

St. Clair County Registration Requirements

Sex offender registration in St. Clair County is handled by the St. Clair County Sheriff's Office, located at 1170 Michigan Rd., Port Huron, MI 48060. The main phone number is 810-987-1700. The sheriff's office website is available at stclaircounty.org/offices/sheriff. Registration is always completed in person. No mail or online options exist anywhere in Michigan.

Michigan's Sex Offenders Registration Act, beginning at MCL 28.721, governs registration statewide. MCL 28.723 requires registration within three business days of release from custody or three business days after establishing a Michigan address. Under MCL 28.725, any change in home address, vehicle information, online identifiers, or school enrollment must be reported in person within three business days. Bring a valid photo ID, proof of current address, and vehicle details when you come in.

The registration fee is $50 at initial registration and $50 for each annual renewal. State law caps the total lifetime fee at $550. Failing to register is a felony under MCL 28.729, with penalties of up to four years and $5,000 for a first offense, and up to ten years and $10,000 for third and subsequent offenses.

Tier System in St. Clair County

Under MCL 28.725a, every registered sex offender in Michigan is assigned to one of three tiers. The tier is based entirely on the offense of conviction. It does not change based on where someone lives or how long they have been compliant. Tier I covers lower-level offenses such as fourth-degree criminal sexual conduct under MCL 750.520e. Tier I registrants verify annually and stay on the registry for 15 years.

Tier II applies to mid-range offenses, including second-degree criminal sexual conduct under MCL 750.520c. These registrants verify every six months and remain registered for 25 years. Tier III is for the most serious convictions. First-degree criminal sexual conduct under MCL 750.520b, often involving penetration with a minor, places someone in this category. Tier III registrants verify quarterly and remain on the public registry for life. The Michigan State Police assigns tier status at the time of initial registration based on the court conviction record, and no change can be made at the county level.

Note: Tier level determines how often a registrant must report and how long they stay on the registry, but all tiers require in-person check-ins at the St. Clair County Sheriff's Office.

St. Clair County Courts and Records

Felony sex offense cases in St. Clair County are handled by the 31st Circuit Court in Port Huron. Misdemeanor matters go to the 72nd District Court, which has two locations: 201 McMorran Blvd., Room 2900 in Port Huron (810-985-2072) and 2088 S. Parker in Marine City (810-765-4057). The circuit court conviction is what determines tier assignment and the length of required registration.

Court records can be searched through the MiCOURT Case Search tool on the Michigan courts website. MiCOURT provides public access to case dockets, sentencing records, and case summaries across the state court system. It is a useful tool for verifying a person's conviction history in St. Clair County. Inmate lookup for the St. Clair County Jail is also available online at inmates.stclaircounty.org, which is updated throughout the day.

Reporting and Additional Resources

To report a tip about a non-compliant registrant in St. Clair County, contact the sheriff's office at 810-987-1700. Anonymous tips can also be submitted to Crime Stoppers of Michigan at 1-800-773-2587. The Michigan State Police SOR unit handles statewide enforcement coordination and can be reached at (517) 241-1806 or by email at psors@michigan.gov.

The Michigan Offender Tracking Information System (OTIS) covers people currently on parole or probation with the Michigan Department of Corrections. It is a public tool that complements the sex offender registry. For a full criminal history background check, the ICHAT database covers all Michigan felony and misdemeanor convictions for $10 per search. The National Sex Offender Public Website connects all state registries if you need to check whether someone registered in another state before coming to St. Clair County.

Note: The PSOR contact page at mspsor.com/Home/Contact also accepts questions and tips related to the statewide sex offender registry.

Cities in St. Clair County

St. Clair County does not have any cities that meet the population threshold for individual city pages on this site. To search for registered sex offenders in Port Huron, Marine City, St. Clair, or any other community in the county, use the Michigan Public Sex Offender Registry at mspsor.com. Searching by zip code or street address will give you results for any specific part of the county.

Nearby Counties

St. Clair County is situated in Michigan's Thumb region along the border with Ontario. The links below lead to sex offender registry pages for bordering counties.