In terms of population the 4 largest counties in Colorado are: El Paso - 622,263 Denver - 600,158 Arapahoe - 572,003 Jefferson - 534,543In terms square miles it is: Las Animas - 4,773 Moffat - 4,743...
The largest county in Colorado is Denver. Denver is 153.3 square miles big and has a population of 610,345
Las Animas County by area.
Las Animas County in Southern Colorado. The county seat is Trinidad.
Las Animas County at 4,773.27 square miles. Almost four Rhode Islands can be fitted into Las Animas County.