Northglenn, Adams County, Colorado Property Taxes
Property Taxes in Northglenn, Colorado
Median Northglenn, Colorado effective property tax rate: 0.75%, significantly lower than the national median of 1.02%, and higher than the Colorado state median of 0.50%.
Median Northglenn, Colorado home value: $446,000
Median annual Northglenn, Colorado tax bill: $3,240, $840 higher than the national median property tax bill of $2,400.
How are property taxes in Adams calculated?
Property taxes in Northglenn, Colorado are calculated based on the tax assessed value, which is often lower than the actual market value due to property tax exemptions such as the homestead or senior exemption.
Understanding Northglenn's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Northglenn, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
Northglenn, Adams County, Colorado Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
0.75%
Estimate Property Tax Bill
$3,345
$3,104
How Does the Northglenn Property Tax Calculator Work?
Use this Northglenn property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Northglenn's median effective tax rate of 0.75% — based on actual property records in Adams County — to generate your estimate.
Enter your property's estimated assessed value — the figure the local appraisal district uses to calculate your bill, which reflects any exemptions you hold and is typically lower than your home's market value. Our calculator applies Northglenn's median effective rate across all local levies, providing a more accurate estimate than applying a single county millage rate.
Your bill may vary by ZIP code within Northglenn: rates range from the lowest median property tax bill of $3,183.00 in 80233 to the highest median property tax bill of $4,145.00 in 80241, primarily due to differences in school district levies and local assessment districts.
For a more precise estimate, scroll down to explore ZIP code-level tax rate trends across Northglenn.
About Northglenn Property Taxes
About Property Taxes in Northglenn, Adams, Colorado
Northglenn's median effective property tax rate of 0.75% is lower than the Colorado state median of 0.50% and lower than the national median of 1.02%. This rate reflects the Adams County base levy combined with local school district levies and metro districts that vary by subdivision throughout the city.
Property tax rates are not uniform across Northglenn. Homeowners in the 80234 ZIP code carry a median effective rate of 0.76%, while those in 80233 pay 0.75%. This spread — 0.01 percentage points across the same city — reflects how school district boundaries and local assessment districts are drawn across Adams County. Understanding which part of Northglenn you live in can make a meaningful difference to your annual tax bill.
Northglenn homeowners who believe their assessed value is too high can file a formal appeal with the local Tax Assessor before the June 1, 2026 deadline each year.
If your estimated bill above seems higher than expected, Ownwell can review your assessment and protest on your behalf. You only pay if we save you money.
Property Tax Rates Across Northglenn, Adams County, Colorado
As noted earlier, local government entities set tax rates, which can vary widely within a state.
Why? Because annually, each county estimates its required budget to provide services and divides that by the total value of all taxable property within its jurisdiction. This calculation results in the property tax rate.
While there are votes and laws involved in setting tax rates and budgets, in a nutshell, this is the annual process.
Below, you can compare Northglenn's effective property tax rate to other cities in Colorado and the median property tax rates in Colorado and the U.S.
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Effective Northglenn Tax Rate
0.75%
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Effective Adams County Tax Rate
0.66%
Median Effective Colorado Tax Rate
0.50%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Northglenn, Adams County, Colorado
| Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 80233 | 0.56% | 0.71% | 0.75% | 0.77% | 0.78% |
| 80234 | 0.58% | 0.63% | 0.76% | 0.78% | 0.79% |
| 80241 | 0.57% | 0.73% | 0.75% | 1.24% | 1.26% |
| 80260 | 0.57% | 0.64% | 0.75% | 0.77% | 0.78% |
| 80640 | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
Property Tax Assessment Values Across Northglenn, Adams County, Colorado
When examining property taxes in Northglenn, Colorado, understanding the distinction between market value and assessed value is crucial.
The market value is what a willing buyer would pay to a willing seller in an open and competitive market, often influenced by location, property condition, and economic market trends. The Adams County assessor estimates the market value for tax purposes.
The assessed value is the market value minus any applicable exemptions or limits determined by local laws and offerings. The tax assessed value is the figure used to calculate your property taxes or the amount multiplied by your tax rate to get your tax bill.
Assessment notices:
In Adams County, assessment notices are sent in the spring each year. They'll typically reach your mailbox by the middle of May.
Each property owner receives an assessment notice that contains both the market value and assessed value, along with an estimate of your property tax bill. By providing insights into how assessed and market values are determined, this section helps property owners navigate their tax responsibilities and understand the valuation processes affecting their property taxes in Northglenn.
For example, the median home price in Northglenn is $446,000, with tax bills ranging significantly across the county. 80241 has the highest median home price at $506,000.
Property Tax Assessment Values Across Northglenn, Adams County, Colorado
Source: Ownwell
$16,400
$674,200
$1,332,000
Median Northglenn Market Value
$446,000
Median Adams County Market Value
$464,000
Median Colorado Market Value
$519,879
Median United States Market Value
$235,294
Property Tax Assessment Values Across Northglenn, Adams County, Colorado
| Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 80233 | $395,000 | $415,000 | $435,000 | $465,000 | $504,000 |
| 80234 | $404,000 | $445,000 | $467,000 | $508,000 | $567,000 |
| 80241 | $439,000 | $462,000 | $506,000 | $529,500 | $550,000 |
| 80260 | $415,000 | $434,000 | $456,000 | $481,000 | $512,000 |
| 80640 | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
Property Tax Bills Across Northglenn, Adams County, Colorado
Northglenn property tax bills are calculated from the assessed value of a home and the local tax rates set by taxing authorities in Adams County. The assessed value is based on the market value of the property, and that value is multiplied by the applicable mill levies to determine the annual tax bill. For homeowners, this means that changes in market value, assessments, or local rates can directly affect what is owed each year.
With a median home price of $446,000, property tax bills in Northglenn can vary widely. The 25th percentile tax bill is $2,884, while the 75th percentile is $3,612, and the 90th percentile reaches $4,063. That range shows how different homes can face very different tax burdens even within the same city. The highest median tax bill is $4,145 in ZIP code 80241, while the lowest median tax bill is $3,183 in ZIP code 80233.
Median Northglenn Tax Bill
$3,240
Median Adams County Tax Bill
$3,172
Median Colorado Tax Bill
$2,732
Median United States Tax Bill
$2,400
Property Tax Bills Across Northglenn, Adams County, Colorado
| Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 80233 | $2,375 | $2,876 | $3,183 | $3,515 | $3,886 |
| 80234 | $2,625 | $2,892 | $3,498 | $3,950 | $4,567 |
| 80241 | $2,424 | $3,474 | $4,145 | $6,324 | $6,812 |
| 80260 | $2,488 | $2,965 | $3,337 | $3,627 | $3,911 |
| 80640 | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Appeal Deadline | June 1 |
Links | |
|---|---|
| Adams Tax Assessor | |
| Website | gisapp.adcogov.org |