DNA Testing in Napa County, California
TestMark DNA provides certified DNA testing throughout Napa County, California. With 3 collection sites across 2 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 Napa County
TestMark DNA operates 3 certified collection sites across 2 cities in Napa County, California, covering the ZIP codes listed below. Every site is CLIA-certified to the same federal standard used by hospital and physician laboratories.
3
Collection Sites
2
Cities Served
2
ZIP Codes Covered
ZIP Codes Served in Napa County
- 94558
- 94574
Largest Cities by Number of Sites
- Napa2 sites
- Saint Helena1 site
Cities in Napa County
All Locations in Napa County
Frequently Asked Questions
Where can I get a DNA test in Napa County, California?
TestMark DNA operates 3 certified collection sites across 2 cities in Napa County, with the largest concentration in Napa. 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 Napa County have DNA testing available?
TestMark DNA serves 2 cities in Napa County, California. The full list of cities and their collection sites is shown above on this page. Napa 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 Napa County?
No appointment is required at most TestMark DNA collection sites in Napa 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 Napa County, California?
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 Napa County, regardless of which physical pickup location you visit.
Are DNA test results from Napa 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 California 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 Napa County?
TestMark DNA collection sites in Napa 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.