Jefferson County, CO — 2026 YTD
Jefferson County, CO indexed 305 development projects YTD in 2026 (through 2026-09-03). Residential leads at 15% (46 projects). Arvada is the most active city (109 projects), followed by Superior (87).
Data through September 3, 2026 · Updated September 4, 2026 · America/Denver · Refreshed weekly
YTD Projects
305
Cities in County
5
County activity by period
| Period | Projects |
|---|---|
| Year to date (Jan 1 – Sep 3, 2026) | 305 |
| This week (Aug 31 – Sep 3, 2026) | 0 |
Projects by Type (YTD)
| Type | Projects |
|---|---|
| Residential | 46 |
| Mixed Use | 32 |
| Civic Actions | 5 |
| Commercial | 4 |
| Infrastructure | 1 |
Cities in Jefferson County
City-level counts for YTD 2026. Linked cities have enough distinct activity for a standalone page.
Frequently asked questions
- How many development projects were indexed in Jefferson County, CO YTD 2026?
- 305 projects with indexed meeting dates year-to-date through 2026-09-03.
- Which cities in Jefferson County had the most development activity?
- Arvada (109), Superior (87), Westminster (60) lead the county by project count.