St. Charles County Department of Public Health phone numbers, clinics and service routes
St. Charles County Department of Public Health serves residents across St. Charles, Wentzville, O’Fallon, Lake Saint Louis, Dardenne Prairie and surrounding communities with immunizations, health screenings, STI testing, WIC, communicable-disease services, Missouri birth and death certificates, food safety, mosquito control and other public-health programs.
A second Health Services clinic is now available in Wentzville. One important exception is septic and onsite wastewater permitting: those applications go through Community Development’s Building and Code Enforcement Division rather than Public Health.
What does St. Charles County Department of Public Health do?
The department protects community health through three major divisions: Health Services, Environmental Health and Protection, and Humane Services. For most residents, the highest-demand services are vaccines, clinic testing, WIC, birth/death certificates, communicable-disease help, food safety and environmental-health regulation.
Immunizations, travel health, STI screening, TB testing, laboratory services, disease investigation, WIC and Missouri Vital Records.
Restaurants, food vendors, lodging, child-care facilities, body art, pools, fitness facilities, mosquito control, waste and environmental complaints.
Animal control, pet adoption and animal incidents are handled by the department’s Humane Services division rather than the Health Services clinic.
St. Charles County Public Health phone numbers by service
Different divisions use different numbers. Start with the service-specific line whenever you know what you need.
| Service | Phone | Best use |
|---|---|---|
| Department of Public Health | 636-949-7400 | General department questions and routing. |
| Clinic / Immunizations | 636-949-7484 | Vaccines, travel health, STI testing, TB testing and laboratory appointments. |
| WIC | 636-949-7402 | WIC certification, nutrition services, breastfeeding support and appointment scheduling. |
| Vital Records | 636-949-7558 | Certified Missouri birth and death certificates. |
| Environmental Health | 636-949-1800 | Food establishments, inspections, pools, lodging, body art, mosquito control and environmental complaints. |
| Animal incident / Humane Services | 636-949-7347 | Animal bite or scratch reports involving people and other animal-control issues. |
| OWTS / septic permits | 636-949-7345 | Community Development Building and Code Enforcement for onsite wastewater permits and inspections. |
St. Charles and Wentzville Public Health clinics
The Department of Public Health now provides Health Services from two clinic locations. The St. Charles site remains the primary department campus, while the Wentzville office expands access for western St. Charles County.
| Clinic | Address | Current service note |
|---|---|---|
| St. Charles Clinic | 1650 Boone’s Lick Road, St. Charles, MO 63301 | Health Services, immunizations, WIC, Vital Records and Environmental Health are based at this campus. |
| Wentzville Clinic | 600 Medical Drive, Suite 216A, Wentzville, MO 63385 | Health Services and immunization appointments; WIC is also offered on selected days. |
Current Health Services information lists 8:30 a.m.–4:30 p.m. at both clinic locations, with Wentzville services by appointment.
Most Health Services programs require appointments. Vital Records and passport services are exceptions and use their own check-in systems.
Because specific services operate on selected schedules, confirm that the Wentzville clinic is offering the program you need before driving there.
Child, adult and travel vaccines in St. Charles County
The St. Charles County Immunization Clinic provides vaccination to children and adults in cooperation with the Missouri Department of Health and Senior Services. Travel-health appointments are also available.
Routine and school-required vaccines are available. Eligible children may qualify for federally supported Vaccines for Children doses.
Recommended adult vaccines are available, including selected no-cost vaccines for adults who qualify under Section 317 eligibility rules.
Friday clinic scheduling includes travel and vaccine appointments. Call early before international travel because some vaccine series take time.
| Clinic detail | 2026 information |
|---|---|
| Appointment phone | 636-949-7484. |
| St. Charles hours | Generally 8:30 a.m.–3:30 p.m., with lunch from noon–1 p.m. |
| Walk-ins | May be available Tuesday and Thursday at the St. Charles location. |
| Wednesday | Appointments at St. Charles and Wentzville; no walk-ins. |
| Friday | Travel-health and vaccine appointments. |
| Administration fee | Current 2026 vaccine pricing commonly includes a $16 administration fee where applicable. |
St. Charles County WIC appointments, benefits and documents
WIC provides supplemental foods, nutrition education, breastfeeding support, health screening and healthcare referrals for qualifying pregnant people, new mothers, infants and children up to their fifth birthday.
Call 636-949-7402 to schedule a certification appointment or ask about benefits and documentation.
You do not have to be a U.S. citizen to participate in WIC. Missouri residency and other program eligibility rules still apply.
WIC staff verify participant category, income and nutritional or medical risk during certification.
| WIC site | Address | Current schedule |
|---|---|---|
| St. Charles WIC | 1650 Boone’s Lick Road, St. Charles, MO 63301 | Most weekdays 8 a.m.–noon and 1–5 p.m.; twice monthly late hours may run 9 a.m.–1 p.m. and 2–6 p.m. Call for the exact date. |
| Wentzville WIC | 600 Medical Drive, Suite 216A, Wentzville, MO 63385 | Appointment-based; county information lists first and third Friday service. Call before visiting. |
What to bring for WIC certification
STI, HIV, hepatitis C, pregnancy, TB and laboratory testing
The Health Services Clinic provides low-cost laboratory and screening services to people who make an appointment. Current 2026 pricing is published by the county and may include a one-time $16 administration fee.
| Test | Current listed 2026 price | Appointment note |
|---|---|---|
| Chlamydia or gonorrhea | $27 | Urine, rectal or pharyngeal specimen options; appointment required. |
| Syphilis screen | $9 | Blood test. |
| HIV rapid screen | $18 | Blood test. |
| Hepatitis C rapid screen | $17 | Blood test. |
| Pregnancy test | $5 | Urine test. |
| TB skin testing | Call for current fee | PPD testing requires an appointment. |
Missouri birth and death certificates through St. Charles County Public Health
St. Charles County Public Health’s Vital Records program can issue certified computer copies of qualifying Missouri birth and death certificates. You do not have to use the county where a Missouri birth occurred if the record is available through the statewide system.
Available for qualifying Missouri births from 1920 to the present. Current fee: $15 per certified copy.
Available for qualifying Missouri deaths from 1980 to the present. Current fee: $14 first copy.
Current fee: $11 each for additional copies of the same death record ordered at the same time.
| Vital Records detail | Current county guidance |
|---|---|
| Phone | 636-949-7558. |
| Location | 1650 Boone’s Lick Road, St. Charles, MO 63301. |
| Walk-in hours | Monday-Friday, 8:30 a.m.–4:30 p.m., except holidays or special closures. |
| Identification | Photo ID is preferred; applicants without photo ID may use at least two accepted alternative documents. |
| Mail requests | Mailed requests must be notarized; cash is not accepted for mailed applications. |
| Online orders | Available through the county’s authorized online vendor route with an added convenience fee. |
Who can request a certificate?
Missouri limits certified records to eligible requesters. Current county guidance includes the registrant, immediate family members, legal guardians and legal representatives. Cousins are not included in the county’s listed immediate-family category.
Restaurant permits, inspections and food complaints
St. Charles County Environmental Health and Protection licenses and inspects permanent and temporary food establishments throughout most of the county. The major jurisdiction exception is the City of St. Peters, which operates its own food-inspection program.
Permanent food establishments must complete county licensing and plan-review requirements before opening in the county’s jurisdiction.
Inspection ratings are publicly accessible through the county’s Know the Score system, and licensed facilities must post their current inspection information.
If you believe a St. Charles County restaurant or food vendor made you sick, call Environmental Health at 636-949-1800.
Pools, lodging, childcare, body art, mosquito control and water testing
The Division of Environmental Health and Protection regulates or monitors a wide range of businesses and environmental conditions that can affect public health.
Programs cover food providers, lodging facilities, childcare centers, body-art studios, public swimming facilities, fitness centers and tanning businesses.
County staff monitor and treat mosquito breeding areas to reduce risks from mosquito-borne disease.
The division provides information and resources for testing private drinking-water supplies.
Septic and OWTS permits go to Community Development
St. Charles County calls private sewage systems Onsite Wastewater Treatment Systems (OWTS). Permitting and inspection are handled by the Community Development Department’s Building and Code Enforcement Division, not the Department of Public Health clinic.
Call 636-949-7345 for OWTS permits, inspections and jurisdiction questions.
Building and Code Enforcement is at 201 N. Second Street, Suite 412, St. Charles, MO 63301.
County permits apply in unincorporated St. Charles County and municipalities that contract with the county. Use the county permit lookup when unsure.
When an OWTS permit is required
A county permit is required for installation, alteration, expansion or repair of an onsite wastewater system, except for limited maintenance work such as cleaning filters, adjusting head pressure or replacing certain like-for-like pumps, aerators and blowers.
Use the official Permit Lookup Tool or call Building and Code Enforcement before preparing plans.
System options depend on soil morphology and site conditions. Approved evaluators are used to determine feasible treatment options.
Alternative systems must be designed by a Missouri-licensed professional engineer and installed by an appropriately licensed OWTS installer.
Do not install, alter or repair a regulated onsite system until you have confirmed the permit and inspection requirements.
Who to call after an animal bite or scratch
Animal incidents can involve both health and animal-control concerns. If someone is bitten or scratched, wash the wound with soap and water and seek appropriate medical care.
Report animal incidents involving humans at 636-949-7347 or through local law enforcement when appropriate.
Communicable Disease staff can also assist with public-health guidance related to potential rabies exposure.
What to prepare before using St. Charles County Public Health services
The right documents depend on the program. A vaccine appointment, WIC certification and Missouri birth-certificate request use very different requirements.
St. Charles County Department of Public Health location
The primary Department of Public Health building is at 1650 Boone’s Lick Road, St. Charles, MO 63301. The Wentzville Health Services location is separate.
Official St. Charles County health and permit resources
Use current county pages before relying on clinic times, vaccine inventory, WIC schedules, testing fees, certificate fees, restaurant rules or OWTS requirements.
St. Charles County Health Department FAQs
What is the St. Charles County Department of Public Health phone number?
The main St. Charles County Department of Public Health number is 636-949-7400. For clinic appointments, immunizations and Health Services testing, call 636-949-7484.
Where is St. Charles County Public Health located?
The primary department location is 1650 Boone’s Lick Road, St. Charles, MO 63301. A second Health Services clinic is at 600 Medical Drive, Suite 216A, Wentzville, MO 63385.
Does St. Charles County Public Health give vaccines?
Yes. The Immunization Clinic serves children and adults and also provides travel-health vaccination services. Call 636-949-7484 to confirm availability, cost and appointment options.
Can I walk in for a vaccine?
Walk-in vaccination slots may be available Tuesday and Thursday at the St. Charles clinic. Wentzville vaccination service is appointment only, and Wednesday service is appointment only at both sites. Calling first is recommended.
How do I contact St. Charles County WIC?
Call 636-949-7402. WIC services are offered from the Boone’s Lick Road location and on selected appointment days at the Wentzville clinic.
Does St. Charles County offer STI and HIV testing?
Yes. The Health Services Clinic provides chlamydia, gonorrhea, syphilis, HIV and hepatitis C screening by appointment. Current 2026 fees are published on the county clinic page.
Can I get a Missouri birth certificate from St. Charles County Public Health?
Yes. Vital Records can issue qualifying certified Missouri birth certificates from 1920 to the present. The current fee is $15 per certified copy.
How much is a Missouri death certificate through St. Charles County?
The current fee is $14 for the first death certificate and $11 for each additional copy of the same record ordered at the same time.
Who inspects restaurants in St. Charles County?
The St. Charles County Division of Environmental Health and Protection licenses and inspects food establishments in most of the county. The City of St. Peters operates its own food inspection program. Call 636-949-1800 for county-jurisdiction questions.
Does St. Charles County Public Health handle septic permits?
No. Onsite Wastewater Treatment System permits are handled by St. Charles County Community Development’s Building and Code Enforcement Division. Call 636-949-7345 for permits and jurisdiction questions.