2018 Oklahoma Question 788 results by county
Data source: https://results.okelections.us/OKER/?elecDate=20180626
Support

  90%–100%  80%–90%  70%–80%  60%–70%  50%–60%
Tie

  Exact tie
Oppose

  50%–60%  60%–70%  70%–80%  80%–90%  90%–100%
Own work
Elli