Costilla County, Colorado Property Taxes

What Are Effective Property Tax Rates Across Costilla County?

Local government entities set tax rates, which vary widely across Costilla County. Each year, the county estimates its budget for public services and divides that total by the assessed value of all taxable property within its jurisdiction.

Below, compare Costilla County's effective property tax rate to other counties in Colorado or the U.S. median of 1.02%.

Costilla County's median effective rate stands at 0.53%, which is lower than the national median of 1.02%. Within Costilla County, the highest rate is found in BLANCA at 0.56%, while SANFORD has the lowest at 0.41%.

These variations reflect differences in local school district levies, metro districts assessments, and special district bonds — which compound the base county rate.

Property tax bills in Costilla County are based on the assessed value of a home, not its market price alone. Local taxing authorities apply the county’s tax rate to that assessed value, so the final bill depends on both the home’s valuation and the combined local levies. For homeowners, this means two similar properties can receive very different tax bills if their assessed values or taxing districts differ.

With a median home price of $52,280, property taxes in the county can still vary widely. The 25th percentile tax bill is $109, while the 75th percentile is $828 and the 90th percentile reaches $1,489. That spread shows how location, property characteristics, and assessment outcomes can affect what homeowners owe each year.

Across the county, the median tax bill is far below the national median property tax bill of $2,400 and the national median property tax rate of 1.02%. For many homeowners, even a modest increase in assessed value can raise the bill, making it important to understand how the assessment is calculated.