Trinidad is a Home Rule Municipality that is the county seat and the most populous city of Las Animas County, Colorado, United States. The population was 9,096 as of the 2010 census, up slightly from 9,078 in 2000. The estimate as of 2018 was 8,211. Trinidad lies 21 mi (34 km) north of Raton, New Mexico, and 195 mi (314 km) south of Denver. Trinidad is situated on the historic Santa Fe Trail.
Trinidad is located at 37°10′15″N 104°30′23″W / 37.17083°N 104.50639°W / 37.17083; -104.50639 (37.170944, −104.506447). According to the United States Census Bureau, the city has a total area of 6.3 square miles (16 km), all of it land.
Trinidad is situated in the Purgatoire River valley in far southern Colorado at an elevation of 6,025 ft (1,836 m). The city lies 13 mi north of the New Mexico border. On the northern end of the town is Simpson’s Rest, a prominent bluff named for early resident George Simpson, who is buried atop it. North Avenue leads to a rut-prone county road to the top of Simpson’s Rest for overviews of the city. The vista from Simpson’s Rest includes Fishers Peak, a prominent mountain of 9,600 ft (2,900 m) in elevation, southeast of the city. To the northwest are the prominent Spanish Peaks.
As of the census of 2000, 9,078 people, 3,701 households, and 2,335 families resided in the city. The population density was 1,439.4 people per square mile (555.5/km²). The 4,126 housing units averaged 654.2 per square mile (252.5/km²). The racial makeup of the city was 79.97% White, 0.54% African American, 3.02% Native American, 0.43% Asian, 0.14% Pacific Islander, 12.12% from other races, and 3.78% from two or more races. Hispanics or Latinos of any race were 48.07% of the population.
Of the 3,701 households, 29.5% had children under the age of 18 living with them, 43.6% were married couples living together, 14.5% had a female householder with no husband present, and 36.9% were not families; 32.7% of all households were made up of individuals, and 16.2% had someone living alone who was 65 years of age or older. The average household size was 2.36 and the average family size was 2.98.
In the city, the population was distributed as 24.9% under the age of 18, 9.4% from 18 to 24, 24.2% from 25 to 44, 22.6% from 45 to 64, and 18.9% who were 65 years of age or older. The median age was 39 years. For every 100 females, there were 92.5 males. For every 100 females age 18 and over, there were 89.8 males.
The median income for a household in the city was $36,681, and for a family was $33,992. Males had a median income of $27,817 versus $19,064 for females. The per capita income for the city was $17,271. About 16.2% of families and 18.3% of the population were below the poverty line, including 19.6% of those under age 18 and 20.0% of those age 65 or over.
Trinidad Colorado neighborhoods include: Allendale, Baldy, City Limit, Colorado Canyon, Garfield, Historic Main Street, Kit Carson Park, Madrid Canyon, Picketwire Valley, Santa Fe Trail Ranch, South Oak, Trinidad