Industry Description
This industry comprises establishments primarily engaged in operating water treatment plants and/or operating water supply systems. The water supply system may include pumping stations, aqueducts, and/or distribution mains. The water may be used for drinking, irrigation, or other uses.
Business Examples
Common types of business activities within NAICS 221310 - Water Supply and Irrigation Systems are:
- Filtration plant, water
- Water treatment plants
- Impounding reservoirs, irrigation
- Water distribution for irrigation
- Water supply systems
- Water distribution (except irrigation)
- Water treatment and distribution
- Irrigation system operation
- Canal, irrigation
- Water filtration plant operation
IBISWorld Industry Research Report
Water Supply & Irrigation Systems in the US (22131)
Revenue 2025
$120bn
Growth 2025
1.07%
Key Trends
The industry is expected to grow as demand from commercial and industrial clients fully recovers
Water demand from both households and businesses has largely grown over the five years
If household demand remains elevated due to sustained work-from-home arrangements, the industry will continue to benefit
Products and Services
NAICS Hierarchy 221310 - Water Supply and Irrigation Systems
NAICS Code 221310 - Water Supply and Irrigation Systems sits in the 2-digit Water Supply and Irrigation Systems sector. NAICS codes can be 2- to 6-digits and the further along the hierarchy, the more detailed and specific the category will be. Learn more about the structure of NAICS codes
2 Digits: 22
Sector Title: Utilities
3 Digits 4 Digits 5 Digits 6 Digits
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2211 Electric Power Generation, Transmission and Distribution
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22111 Electric Power Generation
- 221111 Hydroelectric Power Generation
- 221112 Fossil Fuel Electric Power Generation
- 221113 Nuclear Electric Power Generation
- 221114 Solar Electric Power Generation
- 221115 Wind Electric Power Generation
- 221116 Geothermal Electric Power Generation
- 221117 Biomass Electric Power Generation
- 221118 Other Electric Power Generation
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22112 Electric Power Transmission, Control, and Distribution
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2212 Natural Gas Distribution
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22121 Natural Gas Distribution
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2213 Water, Sewage and Other Systems
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22131 Water Supply and Irrigation Systems
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22132 Sewage Treatment Facilities
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22133 Steam and Air-Conditioning Supply
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NAICS Resources
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