TestMark DNA provides certified DNA testing throughout Cook County, Illinois. With 10 collection sites across 7 cities, there is a convenient location near you. All sites are CLIA-certified and staffed by trained professionals. Call (866) 702-7644 for a free consultation.
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DNA Testing Coverage in Cook County
TestMark DNA operates 10 certified collection sites across 7 cities in Cook County, Illinois, covering the ZIP codes listed below. Every site is CLIA-certified to the same federal standard used by hospital and physician laboratories.
10
Collection Sites
7
Cities Served
10
ZIP Codes Covered
ZIP Codes Served in Cook County
60005
60026
60169
60304
60467
60477
60602
60611
60629
60657
Largest Cities by Number of Sites
Chicago4 sites
Hoffman Estates1 site
Oak Park1 site
Arlington Heights1 site
Orland Park1 site
2 additional cities are served. See the full list above.
Where can I get a DNA test in Cook County, Illinois?
TestMark DNA operates 10 certified collection sites across 7 cities in Cook County, with the largest concentration in Chicago. No appointment is required and results are typically returned in 3 to 5 business days. Call (866) 702-7644 to confirm the closest site to you.
Which cities in Cook County have DNA testing available?
TestMark DNA serves 7 cities in Cook County, Illinois. The full list of cities and their collection sites is shown above on this page. Chicago has the most collection sites and is typically the closest option for visitors traveling within the county.
Do I need an appointment for DNA testing in Cook County?
No appointment is required at most TestMark DNA collection sites in Cook County. Walk-ins are welcome during regular business hours. Calling (866) 702-7644 before you arrive lets us confirm current wait times and which test is right for your situation.
How long do DNA test results take in Cook County, Illinois?
Results for a standard DNA paternity test are typically returned within 3 to 5 business days from when all samples are received at the accredited laboratory. Turnaround applies to every collection site in Cook County, regardless of which physical pickup location you visit.
Are DNA test results from Cook County admissible in court?
Results from a legal DNA test performed at an accredited TestMark DNA site with a completed chain-of-custody form are typically accepted in court, including in Illinois courts. Personal (non-legal) tests are for private knowledge only and are not intended for legal use. Call (866) 702-7644 to confirm which test fits your situation.
What types of DNA tests are available in Cook County?
TestMark DNA collection sites in Cook County support paternity, maternity, sibling, grandparent, avuncular, and immigration DNA testing, plus home DNA kit options. All tests are processed at accredited laboratories, the same facilities used by hospitals and physicians.
