Louisville, Boulder County, Colorado Property Taxes

Name: Property Tax Bills Across Louisville, Boulder County, Colorado
Creator: Ownwell
License: https://creativecommons.org/licenses/by-nc/4.0/

Median Louisville, CO effective property tax rate: 0.46%, significantly lower than the national median of 1.02%, but lower than the Colorado state median of 0.55%.
Median Louisville, CO home value: $796,300
Median annual Louisville, CO tax bill: $3,633, $1,233 higher than the national median property tax bill of $2,400.

How are property taxes in Boulder calculated?

Property taxes in Louisville, CO 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 Louisville’s property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Louisville, knowing local tax details benefits homeowners and investors.

Last Updated March 1, 2025

Louisville, Boulder County, Colorado Property Tax Bill Calculator

Property Assessed Value

$100,000

$1,500,000

$3,000,000

Median Effective Tax Rate

0.46%

Estimate Property Tax Bill

$3,663

$3,399

Ownwell’s Louisville Property Tax Bill Calculator empowers homeowners, real estate investors, and potential buyers to estimate their annual property taxes in Louisville with just two data points.

By entering your property's estimated assessed value, our calculator applies Louisville’s median effective tax rate to accurately estimate your property tax bill. Note that your property's assessed value — determined by your county — reflects any exemptions you may have, ensuring a precise calculation for your property tax obligations.

This insightful tool helps you understand potential tax liabilities and highlights how Ownwell can assist in reducing property taxes in Boulder County.

For those interested in more localized information, please scroll down to explore city-level trends!

Property Tax Rates Across Louisville, Boulder County, Colorado

Local government entities determine tax rates, and these rates can differ significantly within a state. Each year, counties calculate their necessary budget to provide essential services and then divide this budget by the total assessed value of all taxable properties within their jurisdiction. This calculation determines the property tax rate. Although votes and legislation play a role in setting these rates and budgets, this is essentially the annual process. In Louisville, located in Boulder County, Colorado, the effective property tax rate stands out when compared to other cities in the state. Louisville's property tax rate is notably lower than the national median property tax rate of 1.02%. This makes it an attractive location for property owners seeking lower tax obligations. The median property tax rate in Colorado is also lower than the national average, providing an additional incentive for potential homeowners. By understanding these differences, property owners can make informed decisions about where to invest or settle, taking advantage of favorable tax conditions.

Property Tax Rates Across Louisville, Boulder County, Colorado

Source: Ownwell

0.35%

0.47%

0.58%

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 Louisville Tax Rate

0.46%

Median Effective Boulder County Tax Rate

0.50%

Median Effective Colorado Tax Rate

0.55%

Median Effective United States Tax Rate

1.02%

Property Tax Rates Across Louisville, Boulder County, Colorado

Zip	10th Percentile	25th Percentile	Median Tax Rate	75th Percentile	90th Percentile
80027	0.34%	0.42%	0.46%	0.49%	0.54%

Source: Ownwell

Property Tax Assessment Values Across Louisville, Boulder County, Colorado

When examining property taxes in Louisville, 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 Boulder County Assessor's Office 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.

In Boulder 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 Louisville.

For example, the median home price in Louisville is $796,300, with tax bills ranging significantly across the county. Zip code 80027 has the highest median home price at $796,300.

Property Tax Assessment Values Across Louisville, Boulder County, Colorado

Source: Ownwell

$410,300

$977,725

$1,545,150

Median Louisville Market Value

$796,300

Median Boulder County Market Value

$722,900

Median Colorado Market Value

$405,540

Median United States Market Value

$235,294

Property Tax Assessment Values Across Louisville, Boulder County, Colorado

Zip	10th Percentile	25th Percentile	Median Home Price	75th Percentile	90th Percentile
80027	$433,180	$632,500	$796,300	$1,003,500	$1,260,600

Source: Ownwell

Property Tax Bills Across Louisville, Boulder County, Colorado

In Louisville, located in Boulder County, Colorado, property tax bills are calculated based on the assessed value of a home, which is typically a fraction of the market value. For homeowners in Louisville, the median home price stands at $796,300. The property tax rate is applied to the assessed value to determine the tax bill. Factors such as property size, location, and any improvements can influence the assessed value. Homeowners in Louisville face a median tax bill of $3,633, which is significantly above the national median of $2,400. The tax bill can vary, with the 25th percentile at $2,711 and the 75th percentile at $4,762, indicating a range of tax burdens depending on property specifics. For those at the 90th percentile, the tax bill can reach as high as $6,382. Ownwell's expertise in property tax appeals and exemptions can help homeowners potentially reduce their tax bills by ensuring accurate assessments and identifying possible exemptions, offering significant savings and peace of mind.

Property Tax Bills Across Louisville, Boulder County, Colorado

Source: Ownwell

$1,435

$4,708

$7,981

Median Louisville Tax Bill

$3,633

Median Boulder County Tax Bill

$3,545

Median Colorado Tax Bill

$2,283

Median United States Tax Bill

$2,400

Property Tax Bills Across Louisville, Boulder County, Colorado

Zip	10th Percentile	25th Percentile	Median Tax Bill	75th Percentile	90th Percentile
80027	$1,413	$2,711	$3,633	$4,762	$6,382

Source: Ownwell