For 2020 Honda only has a single model in the US that starts below $20,000, the Honda Fit. And that is only for some trim levels of the Fit. In 2019 Honda sold 35,414 Fits, out of 1,450,785 total Honda vehicles sold[1] (384,168 CR-Vs, 325,650 Civics, 267,567 Accords, being the top sellers).
So roughly 2% of Honda vehicles sold in the US cost less than $20,000, and that is without taxes and other fees. The Ford F-150 is the best selling vehicle in the US, and the average transaction price of an F-150 (as sold) is around $50,000. New cars under $20,000 basically don't exist in the US.