Tri-County Electric Coop Assn (MO)
Cooperative electric utility · Missouri · #1,368 of 3,199 U.S. utilities by customers · EIA utility #19158
Tri-County Electric Coop Assn (MO) is a cooperative electric utility serving 6,642 customers in Missouri. In 2025 it sold 93.9 gigawatt-hours of electricity for $16.88M in revenue, an average realized rate of 17.97¢ per kWh across all customer classes and — per kWh for residential customers. Its reported service territory covers 8 counties.
Customers, sales and rates by customer class (2025)
| Class | Customers | Sales (GWh) | Revenue | Avg realized rate | Share of sales |
|---|---|---|---|---|---|
| Total | 6,642 | 93.9 | $16.88M | 17.97¢ |
Average realized rate = revenue divided by sales as reported on EIA Form 861. It blends fixed charges, demand charges and riders into one per-kWh figure; it is not the utility's tariff rate. Estimated residential bill assumes the average residential customer's actual 2025 usage (— kWh/month).
This utility files the EIA-861S short form, which reports totals only - no breakdown by customer class is published for it.
Five-year trend
| Year | Customers | Sales (GWh) | Revenue | Residential rate |
|---|---|---|---|---|
| 2021 | 6,499 | 97.8 | $13.54M | — |
| 2022 | 6,497 | 96.4 | $14.58M | — |
| 2023 | 6,535 | 90.3 | $14.36M | — |
| 2024 | 6,601 | 89.0 | $15.96M | — |
| 2025 | 6,642 | 93.9 | $16.88M | — |
Meters & rooftop solar (2025)
Smart (AMI) meters: 100.0% of 6,642 meters
Counties served
Adair, MOClark, MOKnox, MOMacon, MOPutnam, MOSchuyler, MOScotland, MOSullivan, MO
Other large utilities in Missouri
- Union Electric Co - (MO) - 1,271,896 customers, residential 13.26¢
- Evergy Metro - 590,440 customers, residential 13.41¢
- Evergy Missouri West - 349,970 customers, residential 12.10¢
- Empire District Electric Co - 190,255 customers, residential 14.67¢
- City Utilities of Springfield - (MO) - 122,487 customers, residential 11.65¢
- Cuivre River Electric Coop Inc - 75,876 customers, residential 11.36¢
- City of Independence - (MO) - 59,213 customers, residential 16.54¢
- City of Columbia - (MO) - 53,559 customers, residential 15.50¢
All Missouri utilities and rates
Source: U.S. Energy Information Administration, Form EIA-861 2025 (filed by the utility; figures as published). Utility #19158 in the EIA frame.