Longmont, CO Property Tax Rates
Compare property tax rates across 3 ZIP codes in Longmont, Colorado.
Avg Tax Rate
0.53%
Avg Annual Tax
$3,079
Avg Home Value
$574,233
ZIP Codes
3
Property Tax Overview: Longmont, CO
Longmont has 3 ZIP codes with property tax data. The average effective tax rate across these ZIPs is 0.53%, which is 29% above the Colorado average of 0.42%. Annual property taxes range from $2,387 (ZIP 80501) to $3,841 (ZIP 80503).
For a home at Longmont's median value of $574,233, property taxes add approximately $256/month to housing costs. Longmont home values are above the Colorado median of $454,133, meaning the monthly tax impact is correspondingly higher.
Property tax rates within Longmont vary by 0.03 percentage points across its ZIP codes. This variation typically reflects different school district boundaries, special assessment zones, and municipal service areas within the city.
Longmont vs Colorado Average
Effective Tax Rate
29% above state average
Annual Property Tax
Median Home Value
Frequently Asked Questions
What is the average property tax rate in Longmont, CO?
The average effective property tax rate in Longmont, Colorado is 0.53%, based on 3 ZIP codes.
How much is property tax in Longmont, CO?
The average median annual property tax in Longmont is $3,079 per year, with a median home value of $574,233.
Which ZIP code in Longmont has the lowest property tax rate?
ZIP code 80501 has the lowest effective tax rate in Longmont at 0.52%, with a median annual tax of $2,387.
How many ZIP codes are in Longmont, CO?
Longmont, Colorado has 3 ZIP codes with property tax data available.
Which ZIP code in Longmont has the highest property tax rate?
ZIP code 80503 has the highest effective tax rate in Longmont at 0.55%, with a median annual tax of $3,841.
How do Longmont property taxes compare to the Colorado average?
Longmont's average effective rate of 0.53% is 29% above the Colorado state average of 0.42%.
What factors affect property tax rates between ZIP codes in Longmont?
Property tax rate differences within Longmont are typically driven by school district boundaries (which can account for 40–60% of a tax bill), special assessment zones for fire, water, or transit services, and whether a ZIP falls within city limits or an unincorporated area. Each taxing jurisdiction sets its own rate, which is why adjacent ZIP codes can have noticeably different effective rates.
Tips for Longmont Homeowners
- •Appeal your assessment: If your home is assessed higher than its market value, you can file a property tax appeal. Studies suggest 30–60% of properties are over-assessed. Most counties offer a free informal review process.
- •Check your exemptions: Homestead exemptions can reduce your taxable value and are available to primary residents in most states. Senior, veteran, and disability exemptions may also apply. Exemptions must typically be applied for — they are not automatic.
- •Know your assessment cycle: Colorado reassesses properties periodically. After buying a home, your next tax bill may reflect a new assessment based on your purchase price. Budget accordingly, especially if you bought above prior assessed values.
- •Compare ZIP codes before buying: Even within Longmont, effective tax rates can vary significantly across ZIP codes due to different school district overlays. Use PropertyTaxByZip to compare specific ZIPs before choosing a neighborhood.
Looking for county-level property tax data? View Boulder County on TaxByCounty.com
Data from U.S. Census Bureau, American Community Survey 2019-2023 5-Year Estimates (ZCTA level). ZIP Code Tabulation Areas (ZCTAs) are Census approximations of USPS ZIP codes.
Estimates are informational only and should not be used as financial or legal advice.