Cass County Elec Coop Inc Electricity Rates and Average Bill (North Dakota)
Data through July 2026 (the latest month EIA has published) · Updated October 13, 2026
As of July 2026, Cass County Elec Coop Inc's residential customers in North Dakota paid an average effective rate of 13.37¢/kWh with an average monthly bill of $163.59, per EIA Form 861-M data. That rate is in line with the North Dakota average of 13.41¢/kWh; the U.S. average is 18.31¢/kWh.
Rate trend vs the North Dakota average
View this chart as a table (last 12 months)
| Month | Rate (¢/kWh) | Avg bill ($/mo) | Avg usage (kWh/mo) |
|---|---|---|---|
| August 2025 | 13.61 | 133.85 | 984 |
| September 2025 | 14.00 | 117.23 | 837 |
| October 2025 | 13.78 | 110.10 | 799 |
| November 2025 | 12.88 | 124.03 | 963 |
| December 2025 | 11.66 | 166.75 | 1430 |
| January 2026 | 11.51 | 167.65 | 1457 |
| February 2026 | 12.28 | 138.88 | 1131 |
| March 2026 | 12.34 | 138.27 | 1120 |
| April 2026 | 13.29 | 121.70 | 916 |
| May 2026 | 14.39 | 125.63 | 873 |
| June 2026 | 14.27 | 128.82 | 903 |
| July 2026 | 13.37 | 163.59 | 1223 |
Cass County Elec Coop Inc vs North Dakota vs the U.S.
| Cass County Elec Coop Inc | North Dakota | U.S. average | |
|---|---|---|---|
| Rate (July 2026) | 13.37¢/kWh | 13.41¢/kWh | 18.31¢/kWh |
| Average monthly bill | $163.59 | $144.45 | $212.44 |
| Average monthly usage | 1223 kWh | 1077 kWh | 1160 kWh |
| Rate change, 1 year | −2.6% | +0.8% | +4.9% |
Estimate a bill at Cass County Elec Coop Inc rates
Worked example: 1,000 kWh at Cass County Elec Coop Inc's average effective rate of 13.37¢/kWh is about $133.70. The utility's actual average usage is 1223 kWh/month, which produces the $163.59 average bill. This is an all-in average (energy, delivery, fixed charges, riders); your tariff's marginal price will differ.
See the full North Dakota rate trend, look up another utility by ZIP code, or read why electric bills are rising.
Source: EIA Form 861-M (monthly utility-level sales to ultimate customers, residential), published with roughly a two-month lag. Rate = revenue ÷ sales; bill = revenue ÷ customers. Months failing basic sanity screens are excluded. See methodology.