Need a town name meaning land of horses?

Equine and Hippo both refer to horses in Greek and Latin I think (hippopotamus is 'river horse' for example). Cheval is French for horse

Umaton

Umafield

Uma Mesa

Umia

Uma

Umatopia (literally place of horses)

or put Equi- or Cheval in front of any of them

or use a breed a horse - call the town Palomino or Mustang or Arabian Hills or something

Start by figuring out WHERE this town would be located and what possible languages might have been spoken by people who would have settled the town.  Then use google translate or other apps to find words in those languages. For example:

Horse:

Spanish -- caballo

Finnish -- hevonen

German -- Pferd

Swedish --  hast

Polish -- kon

Place: 

Spanish -- sitio

Finnish --  paikka

German -- Ort

Swedish -- plats

Polish -- miejsce

Village

Spanish -- pueblo

Finnish -- kyla

German -- dorf

Swedish -- by

Polish -- wioska

Then you see if it makes any sense within the context of your story for some town to be called Pferddorf or not.

So goggle the word 'horse' in other languages (actually there are more words even in English) and play around with them till you find one that works for you. Remember too that 'ville' isn't the only possible ending to indicate a town.

I'd just go with something like "Horsey Town", "Clippety-Clop City" or "Los Horselis". They really suit the "style" you've just exhibited in your question.

Try the native Plain Indian's names for horses.......Google it.....