STD Testing in Crystal Lake, IL
13 places to get tested — 3 partner labs that need no appointment, and 10 clinics and testing sites near Crystal Lake.
- 3partner labs
- 3free clinics
- 6sliding scale
- 1insurance or fee
Order a test online
Pick a panel, visit a lab nearby, results in 1–2 days. No appointment, no insurance.
GET TESTED NOWCompare pricing →4,500+ labs nationwide · from $24Partner labs near Crystal Lake
Order online, then walk in the same day with no appointment. A urine or blood sample takes about 15 minutes, and results come back in 1–2 days. They are confidential: never reported to your insurance company or added to your medical record.
Quest Diagnostics
1.2 mi awayNo appointmentOpen Saturday$10 off orders over $100 applied at checkoutOrder a test for this lab →Labcorp
1.4 mi awayNo appointment$10 off orders over $100 applied at checkoutOrder a test for this lab →ACL Laboratories
1.7 mi awayNo appointmentOpen Saturday$10 off orders over $100 applied at checkoutOrder a test for this lab →
We earn a commission if you order through the links above. It does not change what you pay, and it does not decide which labs are listed — those are the closest partner labs to Crystal Lake.
Explore testing locations near Crystal Lake
Clinics and testing sites near Crystal Lake
No free or low-cost clinic is addressed in Crystal Lake itself, so the nearest are listed below, closest first. Public clinics generally take longer to return results than a private lab, and several test on set days only, so it is worth calling ahead. If you would rather not wait or give your details at a public clinic, the 3 partner labs in Crystal Lake need no appointment and return results in 1–2 days.
How we chose these 10 clinics
- Every one is on the CDC’s GetTested locatorThe wider CDC directory we draw from has over 16,000 entries. Only the ones GetTested also lists can appear here, and all 10 clinics below do.
- Listings that name fewer than three tests are left outEven on GetTested, 527 listings name fewer than three tests. We don’t show them anywhere.
- Unverified pregnancy centers are never shownThe CDC lists some pregnancy centers whose STD testing we couldn’t verify. We don’t list them anywhere.
- Cost is stated the way the CDC lists itFree, sliding scale or insurance accepted, as each clinic reports it to the CDC. We don’t estimate prices, and if the listing says nothing, the card says “Fees not listed.”
Directory retrieved September 4, 2026. Open “View services” on any card to see when that clinic last updated its listing. All sources
- Clinic13.8 mi away
Open Door Health Center of Illinois
Elgin Health Center
1665 Larkin Ave, Elgin, IL, 60123
HoursMon-Fri 8:00am-4:30pm
AppointmentsAppointment requiredFeesFree STI testing listed- HIV & STI testing
- PrEP & PEP
- Treats STIs
- Medicaid accepted
CallWebsiteDirectionsView services
Tests Chlamydia · Gonorrhea · Syphilis · HIV · Hepatitis C · TB
Treatments STI treatment · PrEP · PEP · HIV care · Hep C treatment · HPV vaccine · Mpox vaccine · Free condoms · PrEP navigation · Case management
Languages English · Spanish · interpreter available
CDC GetTested listing, last updated by the source April 6, 2026. Directory retrieved September 4, 2026.
- Community organization17.7 mi away
Kenneth Young Center
Schaumburg Office
650 E Algonquin Rd, Schaumburg, IL, 60173
HoursMon-Fri 9:00am-4:00pm
AppointmentsWalk-ins acceptedFeesFree STI testing listed- HIV & STI testing
- Spanish spoken
CallWebsiteDirectionsView services
Tests Chlamydia · Gonorrhea · HIV
Treatments Free condoms · Harm reduction
Languages English · Spanish
CDC GetTested listing, last updated by the source July 28, 2026. Directory retrieved September 4, 2026.
- Public health department19.2 mi away
Cook County Health
Arlington Heights Health Center
3250 N Arlington Heights Rd, Arlington Heights, IL, 60004
HoursMon 10:00am-6:00pm+3
Tue 8:00am-4:00pm · Wed 10:00am-6:00pm · Thu-Fri 8:00am-4:00pmAppointmentsAppointment requiredFeesFree STI testing listed- HIV & STI testing
- PrEP & PEP
- Treats STIs
CallWebsiteDirectionsView services
Tests Chlamydia · Gonorrhea · Syphilis · HIV · Herpes
Treatments STI treatment · PrEP · PEP · HIV care · Hep C treatment · Family planning · HPV vaccine · Hep B vaccine · Free condoms · PrEP navigation · Case management
Languages English
CDC GetTested listing, last updated by the source January 30, 2026. Directory retrieved September 4, 2026.
- Clinic22.2 mi away
Abdallah Karam Internal Medicine
2101 S Arlington Heights Rd, Arlington Heights, IL, 60005
HoursMon-Tue 8:00am-4:00pm+2
Thu 8:00am-4:00pm · Fri 8:00am-2:00pmAppointmentsAppointment requiredFeesInsurance accepted- HIV & STI testing
- PrEP
- Treats STIs
- Spanish spoken
CallWebsiteDirectionsView services
Tests Chlamydia · Gonorrhea · Syphilis · HIV · Herpes · Hepatitis B · Hepatitis C · TB
Treatments STI treatment · PrEP · Hep C treatment · Family planning · HPV vaccine · Hep B vaccine
Languages English · Spanish
CDC GetTested listing, last updated by the source July 12, 2026. Directory retrieved September 4, 2026.
Testing privacy
Anonymous vs. confidential testing
Most clinics test confidentially. Some also offer anonymous testing, usually for HIV. Availability varies by testing site, so ask when you call.
Confidential
- You give your name, and the result goes in your medical record.
- Results are not available to the public.
- Chlamydia, gonorrhea, syphilis and HIV are reportable in every state, so a positive result is reported to the health department. Those reports are kept confidential.
Anonymous
- You don’t give your name.
- You receive a number and use it, not your name, to get your result.
- Not every site offers it. Ask before your visit.
Source: NIH HIVinfo, HIV Testing · CDC, STI Reporting and Confidentiality
Buy an at-home STD test near Crystal Lake and online
CVS Pharmacy, Walgreens, Target and Walmart sell over-the-counter test kits near Crystal Lake, and myLAB Box ships one to your door. You collect the sample at home and mail it to a lab. Stock varies by branch — call ahead or check online before making the trip.
CVS Pharmacy
Nearest branch · 0.6 mi5 storesWalgreens
Nearest branch · 0.7 mi5 storesTarget
Nearest branch · 1.5 mi2 storesWalmart
Nearest branch · 3.1 mi1 storemyLAB Box
Online · ships nationwideMail-in kit
We earn a commission if you order a myLAB Box kit through the link above. It does not change what you pay, and it does not decide which pharmacies are listed — those are the chains with branches near Crystal Lake.
McHenry County STD rates
Reported cases per 100,000 residents. Change shown against the year before.
Chlamydia
▼ 1.7%203.0per 100k
635 reported cases · 2023 · 64% below the IL rate
Gonorrhea
▼ 21.4%26.5per 100k
83 reported cases · 2023 · 87% below the IL rate
Syphilis
▼ 30.9%3.8per 100k
12 reported cases · 2023 · 67% below the IL rate
HIV
▼ 22.2%7new diagnoses
2023 · rate not published
Source: CDC NCHHSTP AtlasPlus, 2023 release · McHenry County IL STD Statistics
There were 7 new HIV diagnoses in McHenry County in 2023. HIV is the one infection where how soon you test changes which test you need — an RNA test detects it far earlier than a standard antibody test.
McHenry County reported 635 chlamydia cases in 2023, a rate of 203.0 per 100,000 residents. Most people who have chlamydia or gonorrhea have no symptoms at all, so waiting for something to feel wrong is not a strategy.
HIV prevention & treatment
PrEP, DoxyPEP & Online Treatment
A test result is the start, not the end. If you are negative and want to stay that way, PrEP and DoxyPEP cut the risk of a future infection. If you are positive, most STIs can be treated without setting foot in a clinic. Both are available to people in Crystal Lake by video visit, prescribed by clinicians licensed in Illinois.
- Treatment & DoxyPEP
Wisp
STI treatment $39 · DoxyPEP from $22
Treatment for an STI, and DoxyPEP, prescribed online. The prescription goes to your pharmacy the same day.
Visit Wisp - HIV PrEP & DoxyPEP
Q Care Plus
$0 for most insured patients
PrEP and DoxyPEP by video visit, with test kits posted to you and follow-up bloodwork tracked between refills.
Visit Q Care Plus - HIV PrEP & DoxyPEP
MISTR
$0 with or without insurance
HIV prevention handled entirely from home: PrEP and the lab work that goes with it, no appointment.
Visit MISTR
Prices depend on your insurance and change frequently — check the provider’s own site before ordering. None of these replace emergency care.
STD testing in Crystal Lake, answered
Where can I find free or sliding-scale STD testing near Crystal Lake?
Among the 10 clinics listed near Crystal Lake, 3 list free testing for at least one infection and 6 list sliding-scale fees. Confirm eligibility and charges before visiting. Free testing is listed at Open Door Health Center of Illinois, Kenneth Young Center, Cook County Health.
How much does STD testing cost near Crystal Lake?
Among the 10 clinics listed near Crystal Lake, 3 list free testing for at least one infection and 6 charge on a sliding scale based on income. Private lab testing is a flat price paid up front — no insurance is filed, so nothing appears on an explanation of benefits.
Can I get tested on a weekend near Crystal Lake?
4 of the 10 listed clinics publish Saturday hours: Aunt Marthas Health and Wellness, Greater Family Health, Lake County Health Department and Community Health Center, Access Community Health Network. Some partner labs also open on Saturday — the cards above show which.
How common are STDs in Crystal Lake?
In 2023, McHenry County reported 635 chlamydia cases — a rate of 203.0 per 100,000 residents. Gonorrhea was 26.5 per 100,000. There were also 7 new HIV diagnoses in 2023.
Is testing available in Spanish near Crystal Lake?
7 of the 10 listed clinics indicate that Spanish-language services are available, and 6 list PrEP.
- Partner labs
- Quest and Labcorp location directories · checked August 2026
- Public clinics
- CDC GetTested / NPIN directory · retrieved September 4, 2026
- Retailers
- Retailer store directories · updated September 2026
- Statistics
- CDC NCHHSTP AtlasPlus · reporting year 2023
- HIV diagnoses
- CDC HIV Surveillance · reporting year 2023
