By Jessica Car · Updated July 2026
Self-contained brewery city with its own fiber internet and a revitalized Main Street
Most towns this far up the corridor orbit Boulder or Denver. Longmont, 35 miles northwest of Denver on the Boulder and Weld county line, runs its own show: a self-contained city of nearly 99,000 with its own electric utility, its own gigabit fiber network, a revitalized historic Main Street, and an actual lake within city limits.
The frame for buyers: full city-scale amenities, some of them genuinely rare, at the most affordable large-city prices in Boulder County.
The median runs $530K to $580K as of 2026, which makes Longmont the most affordable large city in Boulder County, roughly $200K below Louisville and nearly $400K below Boulder. New construction clusters in Harvest Junction and 66 West. City-scale amenities under a $600K median is the central draw, and it holds up against every neighbor on the corridor.
Estimated monthly cost at the $555,000 median home price and a $500 car payment. Open the calculator to adjust for your situation.
Estimated monthly cost
$4,871 – $5,271/mo
Covers housing, transportation, utilities, and groceries.
See the full breakdown: mortgage at today's rate, property tax at Longmont's mill levy, utilities at local provider rates, and a gas estimate tuned to the commute distance. Adjust sliders to model your own budget.
Start with the amenity nobody else has: NextLight, the city-owned gigabit fiber network at $69.95 a month, one of the few municipal broadband systems in Colorado and a quiet superpower for anyone who works from home. Then head to Union Reservoir, where a 700-acre lake with a swim beach, paddleboards, and sailboats delivers a shoreline summer most Front Range cities simply do not have, with Sandstone Ranch and Button Rock Preserve rounding out the open space.
The brewery scene is deep and decorated: Left Hand Brewing ships nationally, Wibby Brewing took 2023 Brewery of the Year at the Great American Beer Festival, and Oskar Blues pours alongside a dozen-plus taprooms and 200-plus restaurants on a reviving Main Street. The calendar carries Colorado's largest and oldest Día de los Muertos celebration, 8,000 attendees strong, plus ArtWalk, Rhythm on the River, and Oktoberfest, with the Longmont Museum and the historic Dickens Opera House as the cultural anchors. Grocery is full city-scale: three King Soopers, Safeway, Sprouts, Natural Grocers, and a Costco nearby.
St. Vrain Valley School District (RE-1J) covers Longmont with an A-minus rating and three high schools: Longmont, Silver Creek, and Skyline. The district's calling card is its Innovation Center, a hub for STEM and career-technical programs, and St. Vrain got to K-12 robotics and coding integration before most districts in the country had a plan for either.
District boundaries are complex in Denver. Verify school assignment by address.
Longmont drives like a standalone city: Walk Score 39, though the bike side is stronger at 58, seventh in Colorado, with the 17-plus-mile St. Vrain Greenway threading across town. Boulder is 20 to 25 minutes down the CO-119 Diagonal, while downtown Denver runs 45 to 50 minutes off-peak and 60 to 80 in rush hour via I-25. RTD's BOLT buses cover the Boulder run, and the city is exploring bus rapid transit on CO-119.
Longmont fits buyers who want a complete city rather than a bedroom suburb: municipal fiber, a decorated brewery scene, a working Main Street, a lake, and STEM-forward schools, all at Boulder County's most accessible large-city prices.
The trade-offs are distance and the county premium. Denver is a 45 to 50 minute drive off-peak, and Boulder County's cost of living runs well above the national average even at Longmont's relative discount. Buyers who need a short Denver commute will look farther south; buyers who want city amenities and a lake without Boulder's price tag will find the corridor's best full-service value.
The effective property tax rate is low at about 0.54% in Boulder County, and combined sales tax is 8.715%. Cost of living runs about 41% above the national average, the Boulder County toll, though Longmont remains the county's most affordable large city. Utilities stay in-house: Longmont Power & Communications supplies municipal electricity alongside NextLight fiber, the city provides water, and Xcel handles gas. Childcare runs $900 to $1,500 a month, less than Boulder or Denver, with Colorado Universal Preschool available.
Updated June 2026
Communities in the same region, same county, or a similar price tier as Longmont.
Longmont is served by St. Vrain Valley School District (RE-1J), rated A− by Niche. The district includes Longmont HS, Silver Creek HS, and Skyline HS. St. Vrain is known for its STEM focus, including K-12 robotics and coding integration and the Innovation Center for STEM/CTE programs. It is the same district that serves Erie and Frederick. Enrollment zones vary. Always verify by address before purchasing.
Longmont’s median home price ranges from $530K to $580K as of 2026, making it the most affordable large city in Boulder County. New construction is available in Harvest Junction and 66 West developments. At roughly $200K less than Boulder, it offers Boulder County access at a significantly lower price point.
Longmont offers Union Reservoir with 700+ acres, a swimming beach, paddleboarding, and fishing, a rare lake lifestyle amenity on the Front Range. St. Vrain Greenway Trail runs 17+ miles through the city. Sandstone Ranch provides 300 acres of community park space, and Button Rock Preserve features Ralph Price Reservoir with hiking (permit required).
Longmont’s cost of living index is 141, or 41% above the national average, driven primarily by housing. However, it is the most affordable large city in Boulder County at $530K–$580K median. The property tax rate is approximately 0.54% (city mill levy 13.42), and the combined sales tax rate is 8.715%. A major cost advantage is NextLight, city-owned gigabit fiber internet at $69.95/mo.
Longmont has 200+ restaurants and a thriving craft beer scene with 12+ breweries, 2 distilleries, and St. Vrain Cidery. Notable spots include: • Left Hand Brewing, nationally distributed, flagship Boston Ave taproom • Wibby Brewing, 2023 GABF Brewery of the Year, lager-focused • Oskar Blues, craft-beer-in-cans pioneer, Tasty Weasel taproom • 300 Suns Brewing, downtown community taproom The Longmont Farmers Market runs Saturdays in summer.
