City of Sumner electricity rates
Municipal utility · Iowa
City of Sumner is a city-owned municipal utility, governed locally rather than by the state commission, serving 1,128 homes in Iowa. Its residential customers pay an average of 15.81¢/kWh including fixed and delivery charges, 12% less than the U.S. average.
Rate basis: EIA-861 2025 annual data, adjusted to the 12 months ending 2026-07 using the state's price trend. This utility files EIA's short form, which reports total sales only, so the rate covers all customer classes.
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City of Sumner bill estimates
| Monthly use | At average all-in rate | Base tariff charges* |
|---|---|---|
| 500 kWh | $79.05 | $48.50 |
| 1,000 kWh | $158.10 | $92.00 |
| 1,500 kWh | $237.15 | $135.50 |
| 2,000 kWh | $316.20 | $179.00 |
*Residential Service (effective nan, $5.00/month customer charge), energy and fixed charges from the OpenEI Utility Rate Database. Riders, fuel adjustments and taxes are often billed separately, so real bills usually land closer to the all-in column. Calculate your bill.
City of Sumner residential rate plans
| Plan | Effective | Customer charge | Energy charges |
|---|---|---|---|
| Residential Service | nan | $5.00 | 8.70¢ |
| Residential Time of Usetime-of-use | nan | $8.00 | 11.0¢ (7am–7pm) · 4.5¢ (12am–7am, 7pm–12am) — summer weekdays |
| Residential/Home Occupation Service | nan | $7.50 | 9.20¢ |
Source: OpenEI U.S. Utility Rate Database. Rates change. Check the linked tariff or your bill for current figures.
City of Sumner rate history
2015–2025: +32% change in the average residential rate (11.62¢ → 15.35¢). Annual EIA-861 data.
Outages & reliability
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Reliability history
City of Sumner doesn't report reliability metrics to EIA (common for small utilities).
Outages in counties served (2025)
From ORNL EAGLE-I, which tracks customers without power every 15 minutes. These counts cover every utility in each county. Weighted across City of Sumner's counties, customers averaged 79 min without power.
| County | Outage min/customer | Days with outages | Peak customers out | Worst day |
|---|---|---|---|---|
| Bremer | 79 | 15 | 2,333 | 2025-07-29 |
City of Sumner service area
City of Sumner serves Bremer County in Iowa.
Bremer
Programs, smart meters & solar
| Smart meters (AMI) for homes | — |
| Time-based rate programs | None reported |
| Net-metered solar homes | 0 reported |
City of Sumner at a glance
| Ownership | Municipal utility |
| Services | — |
| Retail revenue (2025) | $2,414,000 |
| Electricity sold (2025) | 15,725 MWh |
| Balancing authority | MISO |
| EIA utility ID | 18301 |
Other utilities in Iowa
Frequently asked questions
What is City of Sumner's electricity rate?
City of Sumner residential customers pay an average of 15.81¢ per kWh, all charges included (EIA-861 2025 annual data, adjusted to the 12 months ending 2026-07 using the state's price trend). That's 12% above the Iowa average of 14.13¢ and 12% below the U.S. average.
What is the average City of Sumner electric bill?
About $184 a month. The average City of Sumner home uses 1,162 kWh a month. At 1,000 kWh the bill would be about $158.
How many customers does City of Sumner have?
City of Sumner serves 1,128 residential customers in Iowa, across 1 county.
Does City of Sumner offer time-of-use rates?
Yes. The OpenEI rate database lists 1 time-of-use residential plan, including Residential Time of Use. Running big appliances off-peak can cut their cost. Pick the plan in the calculator above to see by how much.
Sources: EIA-861 2025 and EIA-861M (through July 2026), OpenEI URDB, ORNL EAGLE-I, U.S. Census. Methodology. Spot an error? Rates change often, so confirm with City of Sumner before making decisions.