Kilowatt Atlas

Municipal utility

City of Longmont Electric Rates and Average Monthly Bill

Average rate and bill, service area, reliability and rate options for this utility, taken from its 2025 filing with the EIA.

Reviewed Data: EIA Form EIA-861, released October 7, 2026

Independent profile. Kilowatt Atlas is not affiliated with City of Longmont, does not use its logo or branding and cannot take payments, start service or look up accounts. Figures come from public federal data for 2025.

Residential customers

41 thousand

41,483 homes

Average price

13.12 cents

Colorado average 15.69

Average bill

$88.39

Per month at 674 kWh

Price rank

4 of 23

Lowest to highest in Colorado

City of Longmont rates and average bill

City of Longmont reported 41,483 residential customers on bundled service in 2025, using 674 kWh a month on average at 13.12 cents per kWh. Bundled means the utility supplies the energy and delivers it, so the price covers both. Among the 23 Colorado utilities with at least 10,000 bundled residential customers, City of Longmont ranks 4 from the lowest price.

City of Longmont compared with Colorado and the United States
AverageCents per kWhkWh per monthMonthly bill
City of Longmont13.12674$88.39
Colorado (all utilities)15.69658$103.30
United States17.23874$150.68

Source: U.S. Energy Information Administration, Form EIA-861 (final 2025 data), sales to ultimate customers. Price is revenue divided by sales and includes fixed charges.

Service area

EIA lists the counties where City of Longmont has distribution equipment. That covers 2 counties in Colorado. A county can be served by more than one utility, so confirm your address with the utility or your bill.

Colorado (2 counties)

Boulder, Weld

Not sure who serves your address? Use find my electric company.

Reliability

For 2025, City of Longmont reported an average of 40 minutes without power per customer and 0.56 interruptions per customer, with major event days left out. The typical interruption lasted about 71 minutes. For comparison, the median state averaged 127 minutes of outage per customer.

City of Longmont had about 88 fewer minutes of outage per customer than the median state. The Colorado figure across its utilities was 119 minutes. One interruption lasting 71 minutes and 0.56 interruptions a year per customer add up to the 40 minute total.

Source: U.S. Energy Information Administration, Form EIA-861 (final 2025 data), reliability schedule, measured under IEEE 1366. Utilities define events slightly differently, so compare with care.

Rate options and rooftop solar

  • Time-of-use pricing. City of Longmont does not report a residential time-of-use program in its 2025 EIA filing. Ask the utility, because programs change. How time-of-use rates work.
  • Rooftop solar and net metering. EIA shows 1,070 residential net-metered systems on the City of Longmont grid in 2025, with 7.5 megawatts of capacity. How net metering works.

Who owns and regulates it

Owned and run by a city or town. A city council or utility board usually sets the rates, and state commissions often have limited authority over it.

For questions about state consumer protections, see the Colorado Public Utilities Commission.

City of Longmont is a municipal utility based in Colorado.

City of Longmont compared with Colorado

By residential customers, City of Longmont ranks 10th of the 28 utilities that report homes in Colorado, with about 1.6% of the state's homes. Among 5 other municipal utilities in Colorado, the median price is 14.34 cents per kWh, so City of Longmont at 13.12 cents is 1.22 cents below its peers. Over a year, the typical City of Longmont bill runs about $179 below the state average, with monthly use 16 kWh higher. City of Longmont lists distribution equipment in 2 counties, so check your county and your bill before you assume it serves you. 1,070 of its residential customers use net metering, or 25.8 per 1,000 homes, against 76.1 for Colorado as a whole.

Source: U.S. Energy Information Administration, Form EIA-861 (final 2025 data). Peers are other utilities of the same type in Colorado with at least 1,000 residential customers and a reported price.

Other Colorado utilities

Utilities in Colorado close in size to City of Longmont
UtilityTypeHomesCents per kWh
City of LongmontMunicipal41,48313.12
Poudre Valley Rural Electric AssociationCooperative50,93312.47
Holy Cross Electric AssociationCooperative50,43112.45
La Plata Electric AssociationCooperative40,36918.33
City of LovelandMunicipal37,38715.29
Delta Montrose Electric AssociationCooperative32,98514.90

See every one on the electric companies in Colorado page.

Official site and where to get help

Kilowatt Atlas is not City of Longmont and does not take payments, start service or manage accounts. To pay a bill, report an outage or start service, use the website, app or phone number printed on your bill. Be careful with search ads and lookalike sites that offer to pay your bill for a fee.

City of Longmont questions

What is the average residential electric rate for City of Longmont?

City of Longmont residential customers on bundled service paid an average of 13.12 cents per kWh in 2025, with average use of 674 kWh a month and an average bill of $88.39 (EIA Form EIA-861). The Colorado average was 15.69 cents.

How many customers does City of Longmont have?

EIA reports about 41,483 residential customers for City of Longmont in 2025.

Who regulates City of Longmont?

Owned and run by a city or town. A city council or utility board usually sets the rates, and state commissions often have limited authority over it. See the regulator for Colorado on the Colorado state page.

How reliable is City of Longmont?

For 2025, City of Longmont reported an average of 40 minutes of outage per customer and 0.56 interruptions per customer, excluding major event days (IEEE 1366). Utilities measure outages in slightly different ways, so compare with care.

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