Colorado special districts › Costilla
San Luis Water & Sanitation: mill levy and disclosure
San Luis Water & Sanitation is a water and sanitation district in Costilla County, Colorado, with a certified 2025 levy of 2.84 mills.
| Fact | Value |
|---|---|
| Type | Water and Sanitation District |
| County | Costilla |
| Formed | 1962 |
| Mapped area | 305 acres |
| Total mill levy (2025) | 2.84 mills |
| General operating | 2.84 mills |
| Assessed value (2025) | $3,728,517 |
| Levy revenue (2025) | $10,589 |
| Disclosure law | C.R.S. §38-35.7-101 |
A mill is $1 of tax for every $1,000 of assessed value. A home's assessed value is a fraction of its market value set by state law, so the tax on a home depends on its value and the assessment rate for its class.
Colorado requires every contract to buy and sell residential real property to include a statement that the property may be in special taxing districts that can carry general obligation debt (C.R.S. §38-35.7-101). We don't decide whether a disclosure is required for a given sale.
Districts that overlap San Luis Water & Sanitation
A property here can also be in these special districts, each with its own levy. Which ones apply depends on the lot.
- Costilla County Conservancy District · Conservancy District (Flood Control)
- Costilla County Fire Protection District · Fire Protection District
- Costilla Conservation District · Soil Conservation District
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Sources: Colorado Department of Local Affairs (district records, public domain); mill levies from the State of Colorado's property tax data, tax year 2025. As of Nov 12, 2026. Boundaries come from the Colorado Department of Local Affairs: many were digitised from scanned drawings, so they are approximate and not a survey. Mill levies are those certified for the tax year shown, from the State of Colorado's property tax data. MapIron doesn't decide whether a disclosure is required for a sale; confirm with the county treasurer's certificate of taxes due and the district.