States › Colorado › Boulder County
Electric utilities serving Boulder County, Colorado
Utilities that list the county in their Form EIA-861 service territory for 2024, with each one's average price, bill and outage minutes.
Boulder County, Colorado, appears in the Form EIA-861 service territory of 7 utilities for 2024; Public Service Co of Colorado, United Power, Inc and Poudre Valley REA, Inc are the largest by residential customers statewide.
Their average residential prices ran from 12.21¢ to 15.75¢ per kilowatthour, with a median of 13.68¢, against a Colorado average of 14.92¢ and a US average of 16.48¢. Each price is the utility's figure for all of its Colorado customers, not for this county alone.
WAPA: Western Area Power Administration lists the county too but reported no residential sales in Colorado under its own name.
The median SAIDI they reported was 200.8 minutes per customer including major event days; the median among all Colorado utilities reporting was 157.8.
The Census Bureau estimates the county's population at 328,560. EIA does not publish customers by county, so which utility serves a given address has to be confirmed with the utility or the state utility commission.
Average price is revenue divided by sales for the sector and year; it is not a tariff rate. Reliability figures are as reported by utilities to EIA on Form 861 and may use different calculation methods. Figures are for each utility's whole Colorado operation; EIA publishes nothing at county level.
Utilities and their 2024 figures
| Utility | Ownership | Residential customers | ¢ per kWh | Monthly bill | SAIDI, all events | SAIDI, no major events |
|---|---|---|---|---|---|---|
| Public Service Co of Colorado | Investor-owned | 1,365,053 | 15.05¢ | $90.26 | 351.7 | 158.0 |
| United Power, Inc | Cooperative | 101,502 | 15.75¢ | $127.70 | 76.9 | 76.9 |
| Poudre Valley REA, Inc | Cooperative | 49,587 | 12.21¢ | $108.03 | 324.6 | 74.2 |
| City of Longmont | Municipal | 40,855 | 12.30¢ | $85.05 | 19.3 | 19.3 |
| Town of Estes Park short form | Municipal | 11,250 | — | — | — | — |
| Town of Lyons short form | Municipal | 1,126 | — | — | — | — |
| WAPA: Western Area Power Administration | Federal | — | — | — | — | — |
Ordered by residential customers in Colorado. Short-form filers are small utilities that report only totals to EIA, so no residential price is available; their all-sector revenue per kWh was Town of Estes Park 15.57¢, Town of Lyons 12.64¢. A utility with no customers shown reported its retail sales elsewhere or delivers power that other companies bill for.
Against the state and the country
| Measure, 2024 | Utilities listing Boulder County | Colorado | United States |
|---|---|---|---|
| Average residential price per kWh | 13.68¢ median | 14.92¢ | 16.48¢ |
| Average monthly residential bill | $99.15 median | $100.57 | $142.26 |
| SAIDI, all events (minutes) | 200.8 median | 157.8 median | 184.5 median |
| SAIDI, without major event days | 75.6 median | 85.4 median | 99.8 median |
| Utilities counted | 7 | 33 | 1,413 |
Outage minutes reported
SAIDI for 2024 across each utility's whole system, including major event days (paler bars: only the figure without major event days was reported). Not a measure of outages in Boulder County itself.
Population: 328,560 (U.S. Census Bureau, Vintage 2025 estimate). Statewide, residential sales came to 3,442 kWh per resident in 2024.
Other Colorado counties
- Adams County 4
- Alamosa County 2
- Arapahoe County 4
- Archuleta County 2
- Baca County 4
- Bent County 4
- Broomfield County 2
- Chaffee County 4
- Cheyenne County 3
- Clear Creek County 3
- Conejos County 2
- Costilla County 3
All 64 counties and every Colorado utility
Questions and answers
Who provides electricity in Boulder County?
Public Service Co of Colorado, United Power, Inc, Poudre Valley REA, Inc, City of Longmont, Town of Estes Park and Town of Lyons and 1 more list the county in their Form EIA-861 service territory for 2024. Territories overlap, and a utility may cover only a corner of the county.
What is the electricity price in Boulder County?
EIA has no county-level prices. The utilities serving the county reported average residential prices of 12.21¢ to 15.75¢ per kilowatthour across their Colorado customers in 2024; the state average was 14.92¢.
How reliable is power in Boulder County?
Reliability is reported per utility, not per county. The utilities listed reported a median of 200.8 minutes of interruption per customer in 2024 including major event days and 75.6 minutes excluding them.
Provenance
Source: U.S. Energy Information Administration, Form EIA-861 for 2024, final release: service territory file (counties by utility), sales to ultimate customers, reliability and short form files. State and US averages: Form EIA-861M workbook. Population: U.S. Census Bureau. Public domain. To confirm the utility at an address, ask the utility or the state utility commission.