Colorado had 126 Opportunity Zones designated in 2018. Treasury lists 362 Colorado census tracts as eligible for the 2027 round. Colorado's governor nominated 93 tracts; Treasury certification was pending as of Oct 30, 2026.
- 2018 zones
- 126
- Of which rural
- 62
- Eligible for 2027
- 362
- Most it can designate
- 91
- 2027 status
- Nominated
- 2018 Opportunity Zone
- Eligible for the 2027 round
- Nominated for 2027
- Certified for 2027
What changes for Colorado in 2027
The 2018 designations stay in effect through December 31, 2028. New designations take effect January 1, 2027 and run ten years. The state may designate at most 91 of its 362 eligible tracts. Its 2027 status comes from this official source. Read how the 2027 round works and how a tract qualifies.
Counties
| County | 2018 zones | Eligible for 2027 | Eligible, rural |
|---|---|---|---|
| Denver County | 10 | 51 | 0 |
| Adams County | 9 | 43 | 2 |
| Arapahoe County | 9 | 39 | 0 |
| Pueblo County | 9 | 18 | 0 |
| El Paso County | 8 | 36 | 0 |
| Mesa County | 7 | 6 | 0 |
| Jefferson County | 5 | 20 | 0 |
| Weld County | 4 | 21 | 5 |
| Larimer County | 4 | 20 | 2 |
| Boulder County | 4 | 14 | 0 |
| Montrose County | 4 | 6 | 6 |
| Fremont County | 3 | 9 | 9 |
| Delta County | 3 | 7 | 7 |
| Las Animas County | 3 | 5 | 5 |
| Alamosa County | 3 | 4 | 4 |
| Logan County | 3 | 3 | 3 |
| Prowers County | 3 | 3 | 3 |
| Garfield County | 3 | 1 | 1 |
| Otero County | 2 | 7 | 7 |
| Morgan County | 2 | 4 | 4 |
| Chaffee County | 2 | 1 | 1 |
| La Plata County | 2 | 0 | 0 |
| Montezuma County | 1 | 4 | 4 |
| Huerfano County | 1 | 3 | 3 |
| Baca County | 1 | 2 | 2 |
| Bent County | 1 | 2 | 2 |
| Costilla County | 1 | 2 | 2 |
| Crowley County | 1 | 2 | 2 |
| Moffat County | 1 | 2 | 2 |
| Rio Blanco County | 1 | 2 | 2 |
| Rio Grande County | 1 | 2 | 2 |
| Saguache County | 1 | 2 | 2 |
| Archuleta County | 1 | 1 | 1 |
| Cheyenne County | 1 | 1 | 1 |
| Dolores County | 1 | 1 | 1 |
| Gunnison County | 1 | 1 | 1 |
| Kit Carson County | 1 | 1 | 1 |
| Lincoln County | 1 | 1 | 1 |
| Phillips County | 1 | 1 | 1 |
| San Juan County | 1 | 1 | 1 |
| San Miguel County | 1 | 1 | 1 |
| Washington County | 1 | 1 | 1 |
| Yuma County | 1 | 1 | 1 |
| Clear Creek County | 1 | 0 | 0 |
| Eagle County | 1 | 0 | 0 |
| Lake County | 1 | 0 | 0 |
| Conejos County | 0 | 2 | 2 |
| Custer County | 0 | 1 | 1 |
| Douglas County | 0 | 1 | 0 |
| Elbert County | 0 | 1 | 1 |
| Jackson County | 0 | 1 | 1 |
| Kiowa County | 0 | 1 | 1 |
| Mineral County | 0 | 1 | 1 |
| Park County | 0 | 1 | 1 |
| Sedgwick County | 0 | 1 | 1 |
2018 zone tracts, by county
Adams County 9
Alamosa County 3
Arapahoe County 9
Archuleta County 1
Baca County 1
Bent County 1
Chaffee County 2
Cheyenne County 1
Clear Creek County 1
Costilla County 1
Crowley County 1
Delta County 3
Denver County 10
Dolores County 1
Eagle County 1
El Paso County 8
Fremont County 3
Garfield County 3
Gunnison County 1
Huerfano County 1
Jefferson County 5
Kit Carson County 1
La Plata County 2
Lake County 1
Las Animas County 3
Lincoln County 1
Logan County 3
Mesa County 7
Moffat County 1
Montezuma County 1
Montrose County 4
Morgan County 2
Otero County 2
Phillips County 1
Prowers County 3
Pueblo County 9
Rio Blanco County 1
Rio Grande County 1
Saguache County 1
San Juan County 1
San Miguel County 1
Washington County 1
Yuma County 1
State income tax treatment of Opportunity Zone gains varies; see state tax conformity.
Data sources
- IRS Notice 2018-48 - Designated Qualified Opportunity Zones (official list) (retrieved Oct 30, 2026)
- IRS Notice 2019-42 - Amplification of Notice 2018-48 (two added Puerto Rico QOZs) (retrieved Oct 30, 2026)
- CDFI Fund - Designated Qualified Opportunity Zones (list updated Dec 14, 2018) (retrieved Oct 30, 2026)
- IRS Notice 2025-50 - 2018 QOZs comprised entirely of a rural area (Appendix) (retrieved Oct 30, 2026)
- IRS Rev. Proc. 2026-14 - Nomination of 2027 QOZs (retrieved Oct 30, 2026)
- IRS Rev. Proc. 2026-14 Appendix - LICs eligible for nomination as 2027 QOZs (retrieved Oct 30, 2026)
- Treasury OTA - Eligible LICs for Nomination as 2027 QOZs, data transparency file (Sept 2026) (retrieved Oct 30, 2026)
- Treasury OTA - Eligibility Criteria for 2027 QOZs (Sept 2026) (retrieved Oct 30, 2026)
- Census Bureau 2020 Census Tract to 2010 Census Tract Relationship File (national) (retrieved Oct 30, 2026)
- ACS 2020-2024 5-year, B19113 Median family income (retrieved Oct 30, 2026)
- ACS 2020-2024 5-year, B17001 Poverty status in the past 12 months (retrieved Oct 30, 2026)
- Colorado: official 2027 nomination or designation source (checked Oct 30, 2026)
Every source file, with its retrieval date and checksum, is listed in sources.json.
Common questions
How many Opportunity Zones are in Colorado?
Colorado had 126 census tracts designated as Opportunity Zones in 2018, of which 62 are on the IRS list of rural zones (Notice 2025-50). Those designations run through December 31, 2028.
Which Colorado tracts are eligible for the 2027 Opportunity Zone round?
Treasury lists 362 Colorado census tracts as eligible for designation in the 2027 round under the new low-income community test. Colorado's governor nominated 93 tracts; Treasury certification was pending as of Oct 30, 2026.
How do I check whether a Colorado property is in an Opportunity Zone?
Use the address lookup on this site. It geocodes the address with the Census Bureau and checks it against both the 2018 zones and the 2027 list, and links the official source for each answer.