Septic System Cost in Colorado (2026)
Compare septic system costs across 3 cities in Colorado. Prices range from $7,500 in Colorado Springs to $8,100 in Denver.
State average
$7,800
Range
$7,500 – $8,100
Cities tracked
3
City comparison
| City | Avg cost | Budget range | High-end range | vs state avg |
|---|---|---|---|---|
| Denver, CO | $8,100 | $2,900–$3,600 | $17,500–$22,400 | +4% |
| Aurora, CO | $7,800 | $2,800–$3,400 | $16,800–$21,500 | 0% |
| Colorado Springs, CO | $7,500 | $2,700–$3,300 | $16,200–$20,700 | -4% |
Explore each city
Denver, CO
Avg: $8,100 · $2,900–$22,400
Aurora, CO
Avg: $7,800 · $2,800–$21,500
Colorado Springs, CO
Avg: $7,500 · $2,700–$20,700
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Frequently asked questions
The average septic system in Colorado costs $7,800. Prices range from $7,500 in Colorado Springs to $8,100 in Denver. Costs vary by city due to differences in labor rates, material availability, and local code requirements.