Meanings
proper noun
- One of 64 counties in Colorado, United States. County seat: San Luis.
Origin
Named after the Costilla River, or Rio Costilla.
Full word history & related roots →Cite this entry
APA
Costilla County. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/Costilla%20County
MLA
“Costilla County.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Costilla%20County. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “Costilla County,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/Costilla%20County.
Source: Costilla County on Wiktionary, CC BY-SA 4.0.