> I remember there were some cases where a place looked like a sea of women but if I adjusted the numbers to exclude married people then the resulting gender ratios were way less skewed.

Isn't there a married man for every married woman, meaning that the gender ratio of single people shouldn't be affected by the marriage numbers? I guess the only explanation would be that there's lots of women aged 30-34 married to men 35-39 in a given county?

> It also included corrections based on data from Gallup in regards to what percentage of single people are interested in dating vs wanting to remain single

There isn't granular data for this question, unfortunately - and the estimates vary widely from survey to survey. If you know of a data source that can provide at-least state level data for this, let me know!