About St. Clair County
St. Clair County, Michigan, is located in the southeastern portion of the state along the Canadian border, bounded by Lake Huron and the St. Clair River. With a population of approximately 160,000 residents spread across 837 square miles (721 square miles land, 116 square miles water), the county serves as a critical international gateway between the United States and Canada. The county seat is Port Huron, a historic city situated at the southern tip of Lake Huron where it meets the St. Clair River. Established in 1820 and organized in 1821, St.
Clair County is one of Michigan's oldest counties, named after Lake St. Clair and the river. The county features several distinctive landmarks including the Blue Water Bridge connecting Port Huron to Sarnia, Ontario, the Fort Gratiot Lighthouse (Michigan's oldest lighthouse, built in 1829), and extensive waterfront recreational areas along the St.
Clair River. The county is divided into 21 townships and 16 incorporated cities and villages. Major municipalities include Port Huron (the largest city), Marysville, Marine City, St.
Clair, Algonac, and Capac. The St. Clair County Register of Deeds maintains official land records at 201 McMorran Boulevard in Port Huron, while the County Clerk's office, also at 201 McMorran Boulevard, handles vital records, elections, and certain business filings.
The St. Clair County Equalization Department manages property assessments and tax records. The county's unique character stems from its maritime heritage, international border position, agricultural heartland in western townships, and growing industrial presence along the I-94/I-69 corridor.
Sheriff, Police & Law Enforcement
Sheriff & Law Enforcement
The St. Clair County Sheriff's Office is responsible for law enforcement services across the county, particularly in unincorporated areas. It operates the county jail, processes arrests, and maintains criminal records. The Sheriff's Office also runs various community programs and divisions, including a marine patrol unit that oversees the county's extensive waterways. The office is dedicated to public safety and works closely with local police departments to ensure comprehensive law enforcement coverage.
Police Departments
Law enforcement in St. Clair County is provided by the St. Clair County Sheriff's Office and several municipal police departments, including the Port Huron Police Department, Marysville Police Department, and St. Clair Police Department. Each department has jurisdiction within its respective city limits, while the Sheriff's Office covers unincorporated areas. These agencies collaborate on major crimes and emergencies, ensuring a coordinated response across the county.
Law Enforcement & Arrests
The St. Clair County Sheriff's Office, headquartered at 1170 Michigan Avenue in Port Huron, Michigan 48060, provides law enforcement services to unincorporated areas and contract policing to several townships. The Sheriff's Office operates the St. Clair County Intervention and Detention Center, the county's main jail facility. Citizens can look up current inmates through the Sheriff's website at www.stclaircountysheriff.org or by calling (810) 987-1700. The inmate roster is updated regularly and provides booking information, charges, bond amounts, and projected release dates.
- To request arrest records, citizens must submit a written FOIA request to the custodial law enforcement agency specifying the records sought.
- Agencies may charge reasonable fees for copying and labor.
Mugshots and booking photos are typically included in the online jail roster. Municipal police departments serving St. Clair County include the Port Huron Police Department, Marysville Department of Public Safety, Marine City Police Department, St.
Clair Police Department, Algonac Police Department, Capac Police Department, Memphis Police Department, and Yale Police Department, each serving their respective jurisdictions. Michigan State Police posts also provide coverage, particularly the Blue Water Post. Arrest records in St.
Clair County are public documents accessible under Michigan's Freedom of Information Act (FOIA), codified at MCL 15.231 et seq. Response time is typically five business days, with possible extensions. The Sheriff's Office maintains arrest logs and booking records dating back several years.
Mugshots are generally considered public records in Michigan unless sealed by court order or involving juvenile offenders. The St. Clair County Sheriff's Office also operates marine patrol units on the St.
Clair River and Lake Huron, enforcing boating laws and conducting search-and-rescue operations in the county's extensive waterways.
Criminal, Arrest & Jail Records
Criminal Records
The criminal records system in St. Clair County includes felony, misdemeanor, traffic offenses, and the sex offender registry. These records are maintained by the St. Clair County Sheriff's Office, local police departments, and the Michigan State Police. Residents can conduct background checks through the Michigan State Police's Internet Criminal History Access Tool (ICHAT). The Michigan Bureau of Investigation provides additional resources for accessing statewide criminal records, ensuring comprehensive background information is available to St. Clair residents.
Arrest Records
Arrest records in St. Clair County are maintained by the St. Clair County Sheriff's Office and local police departments. These records can be requested by residents and attorneys through formal applications, often requiring identification and a processing fee. A typical arrest record includes the individual's name, date of arrest, charges, and booking details. Michigan's Freedom of Information Act governs the release of these records, ensuring public access while protecting sensitive information.
Jail & Inmate Records
The St. Clair County Jail, located in Port Huron, is the primary detention facility for the county. The booking process involves fingerprinting, photographing, and recording personal information of the arrestees. Inmate lookup services are available online, allowing the public to search for current detainees. Visitation rules require scheduling in advance, and visitors must adhere to strict guidelines. The bond process in Michigan allows for cash or surety bonds, and information on recently arrested individuals can be obtained through the Sheriff's Office or the jail's online portal.
Mugshots & Booking Photos
Mugshots in St. Clair County are taken and retained by the St. Clair County Sheriff's Office during the booking process. These booking photos are part of the arrest record and can be accessed through the Sheriff's Office website or third-party services that aggregate public records. Michigan does not have specific mugshot removal laws, but individuals may petition for removal or sealing under certain circumstances, such as expungement of the related charges.
Courts & Case Records
St. Clair County's judicial system consists of multiple court levels serving different jurisdictions. The 31st Circuit Court, located at 201 McMorran Boulevard, Port Huron, MI 48060, handles felony criminal cases, civil cases over $25,000, family law matters including divorce and custody, and appeals from lower courts. The court can be reached at (810) 985-2400. The 72nd District Court, also at 201 McMorran Boulevard (810-985-2240), has jurisdiction over misdemeanor criminal cases, civil cases up to $25,000, landlord-tenant matters, and preliminary examinations in felony cases. St.
- The court charges fees for certified copies: typically $10 for certification plus copy fees of $1 per page for most documents.
- Record searches conducted by court staff may incur additional fees.
Clair County Probate Court (810-985-2100), located in the same complex, handles estates, guardianships, conservatorships, mental health proceedings, and juvenile matters. Court records are public under Michigan Court Rule 8.119 and MCL 600.916, with certain exceptions for sealed cases, juvenile records, and confidential matters. The St.
Clair County courts participate in Michigan's statewide case management system. Online case lookup is available through the court's website at www.stclaircountymi.gov under the Courts section, though some detailed documents may require in-person access. The Friend of the Court division assists with child support and parenting time enforcement in domestic relations cases.
St. Clair County also has several municipal courts handling local ordinance violations. Remote access to some court proceedings has been expanded, and electronic filing is available for attorneys and self-represented litigants through the Michigan e-Filing system.
Property & Public Records
The St. Clair County Register of Deeds, located at 201 McMorran Boulevard, Port Huron, MI 48060, maintains all property and land records for the county. The office can be reached at (810) 985-2015 and operates Monday through Friday during regular business hours. Available records include warranty deeds, quit claim deeds, mortgage documents, discharge of mortgages, liens (mechanic's liens, judgment liens, tax liens), easements, right-of-way agreements, land contracts, plat maps, condominium master deeds, and other instruments affecting real property title.
- Recording fees vary by document type; deeds typically cost $30 for the first page and $3 for each additional page.
- Certified copies of recorded documents cost $10 for certification plus $1 per page.
- The Register of Deeds accepts walk-in requests, mail requests, and in some cases online orders for certified copies.
The Register of Deeds has implemented a comprehensive online search system accessible through www.stclaircounty.org where users can search records by name, property address, parcel number, or document number free of charge. Digital images of recorded documents from recent decades are viewable and printable online. Older records may require in-person research or staff assistance.
Property tax records are maintained by the St. Clair County Equalization Department and individual city and township treasurers. The county provides a Geographic Information System (GIS) parcel viewer at http://gis.stclaircounty.org offering interactive maps with property boundaries, ownership information, tax assessment data, zoning, and aerial photography.
All documents submitted for recording must meet Michigan statutory requirements including proper acknowledgment, legal descriptions, and payment of state and county transfer taxes where applicable.
Vital Records
Vital records for St. Clair County, Michigan, are managed through multiple offices depending on the record type and date. Birth and death certificates occurring in St. Clair County can be requested through the St. Clair County Clerk's office at 201 McMorran Boulevard, Port Huron, MI 48060, phone (810) 985-2200. Birth certificates cost $34 for the first certified copy and $16 for each additional copy ordered simultaneously. Death certificates follow the same fee structure.
- Processing time is typically 1-2 weeks for mail requests and immediate for walk-in requests if the record is readily available.
- Eligible requesters include the registrant (for birth records), parents, legal guardians, spouses, children, legal representatives, and certain others with documented legal need.
- Couples must apply in person, pay a $30 fee ($10 if completing premarital education), provide valid identification and Social Security numbers, and observe a three-day waiting period unless waived.
- Certified marriage certificates cost $16 per copy.
- Online ordering of vital records is available through Michigan's official vendor VitalChek at www.michigan.gov/mdhhs, though convenience fees apply.
Applicants must complete an application form, provide valid government-issued photo identification, and demonstrate a direct and tangible interest in the record as required by Michigan's Vital Records statute, MCL 333.2882. The Michigan Department of Health and Human Services (MDHHS) Vital Records office in Lansing maintains statewide records and serves as an alternative source, particularly for older records. Marriage licenses are issued by the St.
Clair County Clerk at the same address. Divorce records (judgments of divorce) are maintained by the 31st Circuit Court, not the Clerk's office, as they are court records rather than vital records. Genealogical researchers should note that records less than 100 years old have restricted access under Michigan law.
Business & Licensing
Business and licensing records in St. Clair County are maintained at multiple government levels. The St. Clair County Clerk's office at 201 McMorran Boulevard, Port Huron, MI 48060, (810) 985-2200, handles assumed name registrations (Doing Business As or DBA filings) for businesses operating in the county. Filing fees are approximately $10 for registration. However, formal business entity formation—limited liability companies (LLCs), corporations, limited partnerships—is handled exclusively by the Michigan Department of Licensing and Regulatory Affairs (LARA).
- This database includes corporation records, LLC registrations, limited partnerships, and other business entities, providing entity names, registration dates, registered agents, and filing status.
The Michigan Secretary of State maintains the comprehensive business entity database searchable free of charge at www.michigan.gov/corporations. Professional licenses (builders, electricians, plumbers, health professionals, real estate agents, etc.) are issued by state-level licensing boards under LARA, not county offices. The St.
Clair County Building and Development Division, located at 200 Grand River Avenue, Port Huron, MI 48060, issues building permits, certificates of occupancy, and manages zoning compliance for unincorporated areas. Individual cities and townships maintain their own building and zoning departments. Sales tax licensing is handled by the Michigan Department of Treasury.
The Blue Water Area Chamber of Commerce (www.bluewaterchamber.com) serves Port Huron and surrounding communities, offering business directories, networking opportunities, and economic development information. The St. Clair County Economic Development Alliance promotes business attraction, retention, and expansion throughout the county.
Businesses should also check with municipal clerks in their operating jurisdiction for local business licenses, which may be required in addition to state registrations.
Elections & Voter Records
St. Clair County election administration is managed by the St. Clair County Clerk/Register of Deeds Elections Division, located at 201 McMorran Boulevard, Port Huron, MI 48060. The office can be reached at (810) 989-6780, and election information is available at www.stclaircounty.org under the Clerk/Register of Deeds section. Michigan offers online voter registration through the Michigan Secretary of State at www.michigan.gov/vote.
- Eligible Michigan residents can register online using a driver's license or state ID, or register in person at the county clerk's office, township and city clerk offices, or Secretary of State branch offices.
- Michigan now allows Election Day registration, so citizens can register and vote on the same day at their local clerk's office during early voting periods or on Election Day itself.
- However, registering at least 15 days before Election Day allows voters to appear on precinct lists.
- Michigan law provides broad absentee voting rights—any registered voter may request an absentee ballot without providing a reason.
- Requests can be made through the Michigan Voter Information Center online, by contacting your local clerk, or by mail.
To find your polling place in St. Clair County, voters can use the Michigan Voter Information Center at www.michigan.gov/vote by entering their name and date of birth, or contact their local city or township clerk. Election records that are public in Michigan include the Qualified Voter File (voter registration lists with names and addresses but not dates of birth or driver's license numbers), campaign finance reports filed by candidates and committees, candidate nominating petitions and statements of organization, precinct-by-precinct election results, and absentee ballot statistics.
In the November 2024 general election, St. Clair County saw approximately 63% voter turnout, slightly above the county's typical turnout for presidential elections. The next major election is scheduled for November 3, 2026, featuring U.S.
House of Representatives races (St. Clair County falls primarily in Michigan's 9th Congressional District), Michigan gubernatorial and statewide offices, state senate and house seats, county commissioners, and various local positions. Absentee ballot applications must be received by 5 p.m.
the Friday before Election Day, though ballots themselves must be received by 8 p.m. on Election Day to be counted. St.
Clair County maintains transparency in elections by providing election night results on the County Clerk's website, making poll books and election materials available for public inspection following statutory timelines, and responding to Freedom of Information Act requests for election-related documents under MCL 15.231 et seq.
Economy & Demographics
St. Clair County's economy is diversified across manufacturing, healthcare, agriculture, international trade, and tourism sectors. The county's strategic location along the Blue Water Bridge border crossing generates significant economic activity related to international commerce and transportation. Major employers include McLaren Port Huron hospital (healthcare), DTE Energy's Belle River and St. Clair Power Plants (energy generation), Avon Protection Systems (defense manufacturing), Meijer distribution facilities, and several plastics and automotive suppliers.
- Clair County is approximately $60,000, somewhat below the Michigan state average.
- The manufacturing sector remains significant despite industrial shifts, with precision machining, chemical production, and food processing facilities concentrated along the I-94 corridor and river communities.
- Clair County Regional Educational Service Agency and local school districts provides stable employment.
The county has strong agricultural roots, particularly in the western townships where corn, soybeans, sugar beets, and dairy operations dominate. Median household income in St. Tourism represents a growing sector, driven by recreational boating, fishing, waterfront dining, and events like the annual Blue Water Fest and Port Huron to Mackinac sailboat race.
Unemployment rates typically track slightly above state averages but have declined in recent years. The St. Clair County Road Commission employs substantial numbers, and education through the St.
Economic development efforts focus on leveraging the international border crossing, expanding the industrial park infrastructure near I-69 and I-94, supporting downtown revitalization in Port Huron and other communities, and promoting agri-tourism. The county has seen investment in logistics and warehousing facilities due to proximity to major markets and transportation infrastructure. Retail and service sectors cluster around Port Huron, Marysville, and smaller commercial centers throughout the county.
Transparency Score
Court Records: ✅ Online | Property: ✅ Free Search with GIS | Arrest/Jail: ✅ Online Roster | Vital Records: ⚠️ In-Person or Mail Required | Business: ✅ State Online Database | Elections: ✅ Online Portal | Overall Score: 8.5/10 — St. Clair County provides excellent digital access to property, court, and jail records, with robust online tools and transparency across most public record categories.
Frequently Asked Questions
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