Monroe County, Florida Property Taxes
Property Taxes in Monroe County, Florida
Median Monroe County effective property tax rate: 0.72%, significantly lower than the national median of 1.02%.
Median Monroe County home value: $784,940
Median annual Monroe County tax bill: $5,260, higher than the national median property tax bill of $2,400.
How are property taxes in Monroe County calculated?
Property taxes in Monroe County 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 your county's property tax system, exemptions, and reduction opportunities can lead to significant savings. Whether you live in Key West or another part of Monroe County, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
Monroe County, Florida Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
0.72%
Estimate Property Tax Bill
$5,652
$5,244
How Does the Monroe County Property Tax Calculator Work?
Use this Monroe County property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Monroe County's median effective tax rate of 0.72% to generate your estimate.
Enter your property's estimated assessed value — the figure the appraisal district assigns for tax purposes, which is typically lower than market value after applicable exemptions. Our calculator uses the median effective rate for a more accurate estimate than the statutory millage rate alone.
Your actual bill may vary based on your specific exemptions, local school district levies, and any special assessment districts that apply to your property. Monroe County's median tax rate is lower than the 1.10% state median and below the 1.02% national median property tax rate.
For a more precise estimate, scroll down to explore city and ZIP code-level tax rate trends across Monroe County.
Property Tax Rates Across Monroe County, Florida
What Are Effective Property Tax Rates Across Monroe County?
Local government entities set tax rates, which vary widely across Monroe County. Each year, the county estimates its budget for public services and divides that total by the assessed value of all taxable property within its jurisdiction.
Below, compare Monroe County's effective property tax rate to other counties in Florida or the U.S. median of 1.02%.
Monroe County's median effective rate stands at 0.72%, which is lower than the national median of 1.02%. Within Monroe County, the highest rate is found in Key Colony Beach at 0.86%, while Ocean Reef has the lowest at 0.47%.
These variations reflect differences in local school district levies, Municipal Service Benefit Units (MSBUs) assessments, and special district bonds — which compound the base county rate.
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 Monroe County Tax Rate
0.72%
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 Florida Tax Rate
1.10%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Monroe County, Florida
| City | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| Big Pine Key | 0.33% | 0.49% | 0.73% | 0.83% | 0.94% |
| Cudjoe Key | 0.50% | 0.73% | 0.78% | 0.87% | 0.94% |
| Islamorada | 0.36% | 0.61% | 0.76% | 0.85% | 0.93% |
| Key Colony Beach | 0.51% | 0.77% | 0.86% | 0.96% | 1.04% |
| Key Largo | 0.31% | 0.46% | 0.66% | 0.77% | 0.86% |
| Key West | 0.31% | 0.49% | 0.70% | 0.80% | 0.88% |
| Long Key | 0.53% | 0.71% | 0.82% | 0.87% | 0.96% |
| Lower Matecumbe Key | 0.35% | 0.57% | 0.69% | 0.74% | 0.85% |
| Marathon | 0.40% | 0.64% | 0.81% | 0.96% | 1.10% |
| Newfound Harbor Keys | 0.64% | 0.71% | 0.73% | 0.75% | 0.76% |
| Ocean Reef | 0.40% | 0.42% | 0.47% | 0.51% | 0.54% |
| Stock Island | 0.39% | 0.52% | 0.73% | 0.78% | 0.84% |
| Summerland Key | 0.32% | 0.49% | 0.70% | 0.82% | 0.92% |
| Tavernier | 0.32% | 0.52% | 0.72% | 0.83% | 0.92% |
| Upper Matecumbe Key | 0.27% | 0.55% | 0.71% | 0.79% | 0.85% |
| Big Coppitt Key | N/A | N/A | N/A | N/A | N/A |
| Broad Key | N/A | N/A | N/A | N/A | N/A |
| Coco Plum Key | N/A | N/A | N/A | N/A | N/A |
| Duck Key | N/A | N/A | N/A | N/A | N/A |
| Grassy Key | N/A | N/A | N/A | N/A | N/A |
| Knock Em Down Keys | N/A | N/A | N/A | N/A | N/A |
| Layton | N/A | N/A | N/A | N/A | N/A |
| Maitland | N/A | N/A | N/A | N/A | N/A |
| Offshore Islands | N/A | N/A | N/A | N/A | N/A |
| Plantation Key | N/A | N/A | N/A | N/A | N/A |
| Ramrod Key | N/A | N/A | N/A | N/A | N/A |
| Rockland Key | N/A | N/A | N/A | N/A | N/A |
| Saddlebunch Key | N/A | N/A | N/A | N/A | N/A |
| Sugarloaf Key | N/A | N/A | N/A | N/A | N/A |
| Toms Harbor Keys | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
Property Tax Assessment Values Across Monroe County, Florida
When examining property taxes in Monroe County, 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 Monroe County property appraiser 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 Monroe County, assessment notices are sent in the spring each year. They'll typically reach your mailbox by the middle of August.
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 Monroe County.
For example, the median tax bill in Monroe County is $5,260, with tax bills ranging significantly across the county. Ocean Reef has the highest median home price at $2,739,108.
Property Tax Assessment Values Across Monroe County, Florida
Source: Ownwell
$365,490
$1,120,322
$1,875,153
Median Monroe County Market Value
$784,940
Median Florida Market Value
$310,033
Median United States Market Value
$235,294
Property Tax Assessment Values Across Monroe County, Florida
| City | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| Big Pine Key | $397,588 | $510,343 | $647,386 | $819,416 | $1,063,662 |
| Cudjoe Key | $288,850 | $419,634 | $505,602 | $608,848 | $728,287 |
| Islamorada | $472,590 | $698,425 | $1,202,512 | $1,988,102 | $3,104,257 |
| Key Colony Beach | $384,580 | $585,141 | $765,355 | $1,148,898 | $1,779,495 |
| Key Largo | $335,043 | $529,625 | $756,119 | $1,573,186 | $3,737,375 |
| Key West | $375,196 | $568,864 | $820,411 | $1,259,800 | $1,905,280 |
| Long Key | $255,794 | $320,173 | $592,243 | $823,246 | $1,006,788 |
| Lower Matecumbe Key | $1,582,633 | $1,739,175 | $1,875,153 | $2,152,480 | $2,516,512 |
| Marathon | $304,772 | $464,478 | $723,514 | $1,342,934 | $2,048,862 |
| Newfound Harbor Keys | $422,100 | $445,898 | $615,632 | $726,748 | $792,513 |
| Ocean Reef | $1,275,349 | $1,925,640 | $2,739,108 | $3,032,160 | $3,130,176 |
| Stock Island | $291,386 | $333,168 | $365,490 | $473,548 | $555,079 |
| Summerland Key | $521,560 | $696,901 | $860,069 | $1,246,798 | $1,863,329 |
| Tavernier | $382,658 | $538,339 | $729,303 | $1,349,086 | $1,973,202 |
| Upper Matecumbe Key | $990,032 | $1,189,249 | $1,524,240 | $2,554,490 | $3,545,034 |
| Big Coppitt Key | N/A | N/A | N/A | N/A | N/A |
| Broad Key | N/A | N/A | N/A | N/A | N/A |
| Coco Plum Key | N/A | N/A | N/A | N/A | N/A |
| Duck Key | N/A | N/A | N/A | N/A | N/A |
| Grassy Key | N/A | N/A | N/A | N/A | N/A |
| Knock Em Down Keys | N/A | N/A | N/A | N/A | N/A |
| Layton | N/A | N/A | N/A | N/A | N/A |
| Maitland | N/A | N/A | N/A | N/A | N/A |
| Offshore Islands | N/A | N/A | N/A | N/A | N/A |
| Plantation Key | N/A | N/A | N/A | N/A | N/A |
| Ramrod Key | N/A | N/A | N/A | N/A | N/A |
| Rockland Key | N/A | N/A | N/A | N/A | N/A |
| Saddlebunch Key | N/A | N/A | N/A | N/A | N/A |
| Sugarloaf Key | N/A | N/A | N/A | N/A | N/A |
| Toms Harbor Keys | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
Property Tax Bills Across Monroe County, Florida
Property tax bills in Monroe County, Florida are based on the assessed value of a home, not its market price alone. Local taxing authorities apply their tax rates to that assessed value to determine the final bill, so changes in assessment can have a direct impact on what homeowners owe.
With a median home price of $784,940, bills can vary widely across the county. The 25th percentile tax bill is $3,394, while the 75th percentile reaches $8,322. At the high end, the 90th percentile tax bill is $13,922, showing how higher assessed values and local tax rates can push costs up quickly.
Homeowners in Monroe County may feel the effect of these taxes differently depending on location and property value. The median tax bill is $2,640 in Stock Island and $12,754 in Lower Matecumbe Key, highlighting how much property taxes can differ within the same county.
Median Monroe County Tax Bill
$5,260
Median Florida Tax Bill
$3,263
Median United States Tax Bill
$2,400
Property Tax Bills Across Monroe County, Florida
| City | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| Big Pine Key | $1,833 | $2,845 | $4,426 | $6,039 | $7,777 |
| Cudjoe Key | $2,342 | $2,855 | $3,773 | $4,520 | $5,352 |
| Islamorada | $3,236 | $4,721 | $8,113 | $13,630 | $21,379 |
| Key Colony Beach | $2,868 | $4,595 | $6,525 | $9,163 | $14,093 |
| Key Largo | $2,032 | $3,105 | $4,907 | $8,610 | $18,223 |
| Key West | $1,958 | $3,243 | $5,109 | $7,855 | $12,358 |
| Long Key | $2,177 | $2,559 | $4,170 | $6,189 | $8,634 |
| Lower Matecumbe Key | $6,269 | $10,496 | $12,754 | $15,623 | $17,706 |
| Marathon | $2,508 | $3,531 | $5,442 | $8,893 | $13,920 |
| Newfound Harbor Keys | $2,981 | $3,154 | $4,291 | $5,292 | $5,633 |
| Ocean Reef | $5,744 | $8,272 | $11,507 | $13,586 | $14,791 |
| Stock Island | $1,552 | $1,871 | $2,640 | $2,802 | $3,889 |
| Summerland Key | $2,470 | $3,898 | $5,853 | $8,104 | $11,557 |
| Tavernier | $2,260 | $3,456 | $5,042 | $7,968 | $12,186 |
| Upper Matecumbe Key | $3,122 | $7,327 | $10,551 | $14,660 | $21,120 |
| Big Coppitt Key | N/A | N/A | N/A | N/A | N/A |
| Broad Key | N/A | N/A | N/A | N/A | N/A |
| Coco Plum Key | N/A | N/A | N/A | N/A | N/A |
| Duck Key | N/A | N/A | N/A | N/A | N/A |
| Grassy Key | N/A | N/A | N/A | N/A | N/A |
| Knock Em Down Keys | N/A | N/A | N/A | N/A | N/A |
| Layton | N/A | N/A | N/A | N/A | N/A |
| Maitland | N/A | N/A | N/A | N/A | N/A |
| Offshore Islands | N/A | N/A | N/A | N/A | N/A |
| Plantation Key | N/A | N/A | N/A | N/A | N/A |
| Ramrod Key | N/A | N/A | N/A | N/A | N/A |
| Rockland Key | N/A | N/A | N/A | N/A | N/A |
| Saddlebunch Key | N/A | N/A | N/A | N/A | N/A |
| Sugarloaf Key | N/A | N/A | N/A | N/A | N/A |
| Toms Harbor Keys | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
Don't miss the deadline to petition!
Dates | |
|---|---|
| Property Valuation Date | January 1 |
| Appeal Deadline | September 15 |
| Tax Bill | |
| Issued | November 1 |
Links | |
|---|---|
| Monroe Property Appraiser | |
| Website | qpublic.schneidercorp.com |