Conditional logic to check Drop Down Menu

Is there a way that I could create a drop down menu and the response would automatically assign the response to another field?

For example, if I have a field for County and if the user selected Midland then that would automatically assign the field for Region as '5'.  

Conditional logic might be of help to implement your idea.

Smart-Forms-Using-Conditional-Logic

Specifically, you need to create a condition like this:

IF "country" IS EQUAL TO "Midland", then CALCULATE FIELD "Region" INSERT "5". 

Please let us know if you need further assistance.

I have set up a condition on one of my forms. However, I still need your help. There are 58 counties in Region 1. Is there a way that I can set the value to show all 58 county names? We have 10 regions with multiple counties in each region. Is there a way to set 10 different conditions?
Here is a link to my draft form.
https://www.jotform.com/build/80854908418163/settings/conditions
Shona Bohon, Coordinator
Texas Municipal Courts Association
432-634-7125
...

Please check my demo form: https://form.jotform.com/80855600655964

Is that what you're trying to achieve? To my understanding, you want to show the different county drop-down menu depending on the Region number.

In the demo form, I have added different Drop Down field for the county and one Number field for the Region. After that, I used the Show or Hide condition based on the user's answer. Here's a guide: https://www.jotform.com/help/316-How-to-Show-or-Hide-Fields-Base-on-User-s-Answer

If you want to check the demo form, please clone it by following this guide: https://www.jotform.com/help/42-How-to-Clone-an-Existing-Form-from-a-URL

Please give it a try and if you have any questions, let us know. Thank you.

I would like for the user to enter the county name into the field “what county is your court located in”. This could be a drop down menu.
Based on the response I want the field “region number” to automatically populate with the correct region number.
So if I choose Armstrong or Bailey or Baylor county from the list the region number would populate as “1”. But if I select Midland or Ector or Pecos county from the list, the region number would populate as “5”.
...

That is also possible using the Insert Text into a Field using Condition. Here's a guide: How-to-Insert-Text-or-Calculation-into-a-Field-Using-Conditional-Logic

Here's my simple demo form: https://form.jotform.com/80878901155968

Please clone my form to check my condition settings by following this guide: How-to-Clone-an-Existing-Form-from-a-URL