WPForms.
Automatic on WPForms Pro. On WPForms Lite, two minutes with CSS classes.
WPForms has a native Address field, but it is part of WPForms Pro — WPForms Lite does not include it. On Pro the plugin wires it up automatically. On Lite there is no address field to detect, so you tell the plugin which of your text fields are which by adding a CSS class to each. It works exactly the same afterwards.
Three steps.
Install the Postio plugin, activate it, and save your API key under Settings → Postio.
On WPForms Pro: add an Address field to your form. Nothing else to do.
On WPForms Lite: add plain Single Line Text fields, then open each one and put the matching class in Advanced → CSS Classes.
What to tag.
Only postio-line-1is required. Everything else is optional — tag the fields you have and leave out the ones you don't.
| CLASS | FIELD | NOTES |
|---|---|---|
| postio-line-1 | Address line 1 | Required. Doubles as the search box unless you add postio-search. |
| postio-line-2 | Address line 2 | Optional. |
| postio-town | Town or city | Optional. |
| postio-postcode | Postcode | Optional. |
| postio-search | Separate lookup box | Optional. Add this if you want a dedicated "start typing" field above the address. |
Details.
The plugin settings screen shows whether it detected Pro or Lite, so you do not have to guess which route applies to you.
Using something else?
UK address lookup on the block and classic checkout, plus My Account addresses. No configuration.
Every Address field on every form, wired automatically.
Native Address field, free core, wired automatically.
Native Address field with sub-inputs, free, wired automatically.
CF7 has no address field, so you tag yours. Two minutes, once per form.
No address field in Ninja Forms, so you tag yours. Two minutes, once per form.
Elementor Pro only. Tag your fields with CSS classes and you are done.
Ready in under a minute.
Sign up, grab a key, paste it in. Your first hundred lookups are on us.