I need to edit my address and can not seem to find it to do so.

If you mean your billing address, you can edit / update your billing address ⤵️

(macOS) Set up your Apple ID payment method and shipping address on Mac

Set up your Apple ID payment method and shipping address on Mac – Apple Support (UK)

or 

Sign in to your Apple ID account page and edit / update your Apple ID details -> https://appleid.apple.com

• edit your billing addres.

or 

To change the billing address you can do (macOS & Windows OS) via iTunes

Start Music (-> Click on iTunes) -> side bar click iTunes Store -> go to Account (top bar) -> View Account -> Sign in -> Apple ID Summary -> Billing Address -> Edit.

or 

(iPhone & iPad) Go to -> Settings -> tap your Profile -> Payment and shipping -> Change Address.

Edit the Address -> tap Done.

Taking the lead from the article, the link on top of this page which you had visited, before posting this question here, is shown under the "Related Article”, I would like to say:

Log in to https://appleid.apple.com with your Apple ID credentials.

Scroll Down to the Payment and Shipping Section

Tap on Edit

You will be given both Billing and Shipping Addresses to edit.

If it is related to your payment method: Settings>[your name]>Payment & Shipping

If it is related to your contact, open your contact and change it there.

If you mean something different, please specify your needs better

Thanks and regards

Giulio