Cost of Living in Longmont
Longmont's cost of living runs meaningfully above the national average, driven primarily by housing -- a real, disclosed fact rather than a marketing gloss, even though Longmont is genuinely more attainable than Boulder specifically.
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Learn moreA real premium over the national average, driven by housing
A 2026 cost-of-living aggregator cites Longmont's overall cost index at 133 versus a national baseline of 100 -- roughly a third above the national average -- with monthly costs estimated at $3,423 for a single person and $7,537 for a family of four, driven primarily by housing costs, alongside elevated transportation and rising food prices. One figure in the same source describing costs as "1,176% higher than Colorado's state average" appears to be a data-formatting artifact rather than a real, usable statistic, and is disclosed as unreliable rather than repeated as fact.
More attainable than Boulder, but not a nationally cheap market
Longmont's median home sale price runs in a $480K-$575K band depending on source and date (see housing-market) -- well below Boulder's roughly $915,000 median, but still meaningfully above the ~$408,776-$431,400 national benchmark used elsewhere in this dataset's Colorado coverage. The honest framing is relative affordability against Boulder specifically, not absolute national affordability.
Colorado's flat state income tax applies here as anywhere else in the state
Colorado levies a flat 4.40% state income tax as of 2026 (itself subject to a TABOR-driven reduction to as low as 4.25% in years the state certifies a qualifying revenue surplus -- see the state record) -- a real, ongoing cost that layers on top of Longmont's housing and general cost-of-living premium.
Key takeaways
- A 2026 cost-of-living index cites Longmont at 133 versus a national baseline of 100 -- roughly a third above the national average, driven primarily by housing costs.
- Monthly cost estimates run roughly $3,423 for a single person and $7,537 for a family of four per one 2026 source.
- Longmont's housing runs meaningfully below Boulder's (~$915,000 median) but still above the national benchmark (~$408,776-$431,400) -- a real relative-affordability claim, not an absolute one.
- Colorado's flat 4.40% state income tax (2026, subject to a TABOR-driven reduction in surplus years) applies in Longmont as anywhere else in the state.
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