COS from H4 to F1 service center

I came to the USA on H4 visa in Feb 2018 and recently my H4-extension got approved till Sep-2021. I am planning to apply for a COS from H4 to F1.
I have a question:

  1. Which processing center the COS application goes to? Does it depend on where I live or based on the location of the University?

My spouse H1b-I797 code “WAC”.

Thank you.

I cannot guess where they will send the F1 application to.

F1 is an independent visa. So, it is not necessary that it’s service center will be same as H1B.

You will send your H4 to F1 application here:
USCIS Dallas Lockbox

For U.S. Postal Service (USPS):

P.O. Box 660166
Dallas, TX 75266

For FedEx, UPS, and DHL deliveries:

ATTN: I-539
2501 S. State Highway 121 Business
Suite 400
Lewisville, TX 75067

Thank you for the prompt reply.

I have a quick question:

Am residing in Seattle (West coast) still am I supposed to send COS application to Texas. Is this the only address for all the COS H4-F1 applications?

Thank you and Have a great day!

Yes, that’s the address.
You can check yourself here: