# RII-DII Business Improvement District: 2025 mill levy · MapIron

[Colorado special districts](https://mapiron.com/colorado-districts) › Adams

# RII-DII Business Improvement District: mill levy and disclosure

RII-DII Business Improvement District is a business improvement district in Adams County, Colorado, with a certified 2025 levy of 20.5 mills (20 mills for bonds).

| Fact | Value |
| --- | --- |
| Type | Business Improvement District |
| County | Adams |
| Formed | 2018 |
| Mapped area | 343,165 acres |
| Total mill levy (2025) | 20.5 mills |
| General operating | 0.5 mills |
| Bonds (debt service) | 20 mills |
| Assessed value (2025) | $69,741,490 |
| Levy revenue (2025) | $1,429,701 |
| 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 RII-DII Business Improvement District

A property here can also be in these special districts, each with its own levy. Which ones apply depends on the lot.

- [Southwestern Water Conservation District](https://mapiron.com/colorado-districts/southwestern-water-conservation-district) · River Water Conservation District
- [Southwest La Plata Library District](https://mapiron.com/colorado-districts/southwest-la-plata-library-district) · Library District
- La Plata Conservation District · Soil Conservation District
- [Fort Lewis Mesa Fire Protection District](https://mapiron.com/colorado-districts/fort-lewis-mesa-fire-protection-district) · Fire Protection District
- [La Plata Water Conservancy District](https://mapiron.com/colorado-districts/la-plata-water-conservancy-district) · Water Conservancy District
- [Animas-La Plata Water Conservancy District](https://mapiron.com/colorado-districts/animas-la-plata-water-conservancy-district) · Water Conservancy District
- [Florida Mosquito Control District](https://mapiron.com/colorado-districts/florida-mosquito-control-district) · Metropolitan District
- [Florida Water Conservancy District](https://mapiron.com/colorado-districts/florida-water-conservancy-district) · Water Conservancy District
- [Montezuma-Dolores County Metropolitan Recreation District](https://mapiron.com/colorado-districts/montezuma-dolores-county-metropolitan-recreation-district) · Park and Recreation District
- [Durango Fire Protection District](https://mapiron.com/colorado-districts/durango-fire-protection-district) · Fire Protection District
- [La Plata Archuleta Water District](https://mapiron.com/colorado-districts/la-plata-archuleta-water-district) · Water District
- Lake Durango Water Authority · Airport Authority

And 4 more. Check an address to see exactly which apply to a property.

**Is an address in RII-DII Business Improvement District?** Check any Colorado address for free, or look districts up from your software with the API.

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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.

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Source: https://mapiron.com/colorado-districts/rii-dii-business-improvement-district · Map data © OpenStreetMap contributors · Index: https://mapiron.com/llms.txt