Where do I find and print 2018 State 1040-es payment vouchers?

Which state?

Minnesota

Do you mean for tax year 2019?

Yes 2019. I have already printed my return, but the state 1040-es vouchers are not present. Please advise.

I've added instructions on getting back into your return once you've printed it.

same question but for California.

To get back into your return after printing or e-filing, please follow the steps in this article:  How can I access my return after I've e-filed or printed it?

To print your 1040-ES payment vouchers for Minnesota, please follow these steps:

1. Go into your MN return. 
2. Continue to the screen, Estimated Taxes for 20XX and click the Yes box.
3. Continue through the screens, entering the information requested. 
   
4. TurboTax will calculate the estimated payments based on your entries and will display the amounts on the Payment Vouchers screen.
5. The vouchers will print out with your return.

If you want to print out the vouchers separately:

1. Click Tax Tools > Print Center (in the black bar on the left of the screen).
2. Click Print, save or preview this year's return.
3. In the TurboTax Print Center check the box next to 20XX Minnesota returns and Just my tax return(s)
4. Click View or print forms.
5. A PDF will appear and you can choose to print the pages containing the MN estimated payment vouchers.

[Edited | 4/15/2020 | 1:05pm PDT]