Septic Tank Cleaning Cost in Seattle, WA (2026)
Homeowners in Seattle typically pay $0.53–$0.62 per gallon — about 29% higher than the national average of $0.44.
Seattle — per gallon
$0.53 – $0.62
vs. national average
+29%
National average is $0.44 per gallon.
Seattle cost breakdown
Cost components for Seattle (ZIP 98101), January 2026.
| Cost component | Typical range | Share |
|---|---|---|
| Septic Tank Cleanout Labor, Basic | $0.53–$0.62 | 100% |
| Septic Tank Cleanout Job Supplies | $0–$0 | 0% |
How Seattle compares
Septic Tank Cleaning cost across major US metros.
| City | Typical range | vs. national |
|---|---|---|
| New York, NY | $0.59–$0.70 | +45% |
| San Jose, CA | $0.55–$0.65 | +35% |
| San Francisco, CA | $0.55–$0.65 | +35% |
| Seattle, WA | $0.53–$0.62 | +29% |
| Chicago, IL | $0.51–$0.60 | +25% |
| Boston, MA | $0.51–$0.60 | +25% |
| Los Angeles, CA | $0.49–$0.58 | +20% |
| Philadelphia, PA | $0.47–$0.55 | +15% |
| San Diego, CA | $0.47–$0.55 | +15% |
| Minneapolis, MN | $0.47–$0.55 | +15% |
| Columbus, OH | $0.40–$0.47 | -2% |
| Phoenix, AZ | $0.39–$0.46 | -4% |
| Denver, CO | $0.39–$0.46 | -4% |
| Atlanta, GA | $0.37–$0.43 | -10% |
| Houston, TX | $0.36–$0.42 | -12% |
| Dallas, TX | $0.36–$0.42 | -12% |
| Jacksonville, FL | $0.36–$0.42 | -12% |
| Miami, FL | $0.36–$0.42 | -12% |
| San Antonio, TX | $0.35–$0.41 | -15% |
| Austin, TX | $0.35–$0.41 | -15% |
Frequently asked questions
＋ － How much does septic tank cleaning cost in Seattle?
In Seattle, WA, septic tank cleaning typically costs $0.53–$0.62 (ZIP 98101), which is about 29% higher than the national average of $0.44, per January 2026 homewyse.com.
＋ － Why is septic tank cleaning more expensive in Seattle?
Seattle's tree ordinance restricts removal of 'exceptional' and large trees; a permit and often a replacement planting are required. Local labor rates and disposal fees are the main reason prices here run about 29% higher than the national average.
＋ － Do I need a permit for septic tank cleaning in Seattle?
Seattle's tree ordinance restricts removal of 'exceptional' and large trees; a permit and often a replacement planting are required.