The property at 8399 DUNCAN ISLAND RD, Mapleton, OR 97453, built in 1978, is a 1,694 square foot Single Family and has 2 bedrooms and 1 bathrooms. It is situated on a lot that is 39,640 square feet and was last tax assessed in 2025 for a valuation of $425,112
The estimate for this property has experienced a 4.32% increase in the past 6 months reaching a value of $636,542.
Property Tax History
Source: Public Records
| Year | Assessment |
|---|---|
| 2023 | $248,028 +3.00% |
| 2022 | $240,804 +3.00% |
| 2021 | $233,791 +3.00% |
| 2020 | $226,982 |
Valuation History
Source: Public Records
| Month | Valuation | Single Family Homes Sold | Median Sales Price/Sqft |
|---|---|---|---|
| Nov 2025 | $636,542 | - | - |
| Oct 2025 | $642,398 | - | - |
| Sep 2025 | $648,694 | - | - |
| Aug 2025 | $624,505 | - | - |
| Jul 2025 | $638,697 | - | - |
| Jun 2025 | $625,143 | - | - |
| May 2025 | $613,862 | - | - |
| Apr 2025 | $610,194 | - | - |
| Mar 2025 | $609,675 | - | - |
| Feb 2025 | $613,579 | - | - |
| Jan 2025 | $613,564 | - | - |
| Dec 2024 | $611,065 | - | - |
| Nov 2024 | $609,875 | - | - |
| Sep 2024 | $606,543 | - | - |
| Aug 2024 | $629,867 | - | - |
| Jul 2024 | $635,877 | - | - |
| Jun 2024 | $620,883 | - | - |
| May 2024 | $625,048 | - | - |
| Mar 2024 | $596,607 | - | - |
| Feb 2024 | $585,599 | - | - |
| Jan 2024 | $602,973 | - | - |
| Dec 2023 | $605,294 | - | - |
| Nov 2023 | $615,349 | - | - |
| Oct 2023 | $594,405 | - | - |
| Sep 2023 | $625,762 | - | - |
| Aug 2023 | $416,000 | - | - |
| Jul 2023 | $458,100 | - | - |
| Jun 2023 | $415,700 | - | - |
| May 2023 | $443,600 | - | - |
| Apr 2023 | $428,900 | - | - |
| Mar 2023 | $435,100 | - | - |
| Feb 2023 | $429,300 | - | - |
| Jan 2023 | $426,100 | - | - |
*Market History, including Median Sales Price per square foot, and Single Family Homes Sold is based on historical data of Zip Code: 97453 - OR
Population & Environment
Source: Sperling's Best Places
| Zip | City | County | National | |
|---|---|---|---|---|
| Population | 1,016 | 198 | 386,281 | 335,858,263 |
| Population Density | 9 | 673 | 85 | 95 |
| People per Household | 2.2 | 2.1 | 2.3 | 2.6 |
| Median Age | 55.7 | 55.5 | 40.6 | 39.1 |
| Median Income | $45,848 | $45,521 | $56,151 | $66,222 |
| Average Income | $28,913 | $29,079 | $31,579 | $35,475 |
| Cost of Living Index | 83 | 82 | 90 | 100 |
| Zip | City | County | National | |
|---|---|---|---|---|
| January Avg. High Temp | 34.64°F | 34.64°F | 33°F | 22.6°F |
| July Avg. High Temp | 76.5°F | 76.5°F | 81.5°F | 86.2°F |
| Annual Precipitation | 86.37" | 86.37" | 50.9" | 38" |
Click Zestimate price to view details on Zillow. Zestimate data is provided "as is" via the Zestimate API. © Zillow, Inc., 2006-2022. Use is subject to Terms of Use.
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