Longmont
Boulder County's largest and most affordable major city — a diversified tech, aerospace, and manufacturing hub with one of the region's most-loved school districts.
Sitting at the northern edge of Boulder County along the St. Vrain River, Longmont has grown into the county's largest city, with a population approaching 100,000. Long known as a more affordable alternative to Boulder, Longmont has built its own diversified economic base in data storage, aerospace, and advanced manufacturing.
Community Highlights
- Median sale price (2026): roughly $537,000–$600,000 — among the most accessible price points in Boulder County
- Median price per square foot: approximately $284–$301
- Months of supply: 1.6–2.8 — generally tight, competitive conditions
- Median days on market: 11–51 days, with significant month-to-month variation
- Median household income: approximately $83,000–$97,000
- School district: St. Vrain Valley School District — 57 schools and programs across 411 square miles
- Major employers: Seagate Technology, GE Aviation, Advanced Micro Devices (AMD), The J.M. Smucker Company
Geographic & Administrative Context
Longmont sits along the St. Vrain River at the northern edge of Boulder County, making it the largest city in the county and a major employment hub in its own right rather than simply a Boulder bedroom community.
Real Estate Market Dynamics
Longmont’s 2026 market remains the most consistently affordable entry point into Boulder County, with median sale prices ranging from roughly $537,000 to $600,000 — meaningfully below Boulder, Louisville, Lafayette, and Erie. Months of supply has recently run between 1.6 and 2.8, leaning toward sellers.
The city’s housing stock spans established mid-century neighborhoods near downtown to newer subdivisions on the eastern and southern edges, giving buyers more product diversity than is typical elsewhere in Boulder County.
Longmont Real Estate & Demographic Metrics
| Metric | Value |
|---|---|
| Median Sale Price (2026) | $537,000 – $600,000 |
| Median Price Per Square Foot | $284 – $301 |
| Months of Supply | 1.6 – 2.8 Months |
| Median Household Income | $83,000 – $97,000 |
| Population | ~99,000 – 99,500 |
Insight: Longmont’s advanced industries — bioscience, aerospace, and software — comprise nearly 30 percent of its employment base, helping explain why the city has held up relatively well through market cycles despite being the most affordable major city in Boulder County.
Economy & Major Employers
Longmont has built one of the most diversified local economies in Boulder County, anchored by Seagate Technology, GE Aviation, Advanced Micro Devices (AMD), and The J.M. Smucker Company. TinkerMill, Colorado’s largest makerspace, supports a growing entrepreneurial community.
Educational Infrastructure
Longmont is the anchor city of the St. Vrain Valley School District (RE-1J), the seventh-largest in Colorado, serving more than 32,000 students across 57 schools. The district emphasizes STEM, concurrent enrollment, and work-based learning partnerships.
Lifestyle, Transit & Points of Interest
Longmont’s revitalized downtown along Main Street anchors a strong community calendar including the Farmers Market and Rhythm on the River festival. McIntosh Lake, Union Reservoir, and the St. Vrain Greenway offer extensive outdoor recreation.
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