By Kenneth Annan and Dan Bigelow
Disclaimer: This post presents an updated version of a paper I presented at the 2025 AAEA Conference. The results are preliminary and have not been peer-reviewed.
Wildfires pose environmental, health, and economic threats throughout the United States (US). Their frequency and intensity have grown in recent years, particularly in the western United States. Over the last two decades, the total area damaged by wildfires each year has increased, with western states consistently having the highest percentage of burned acreage. In the context of Oregon, between 1984 to 2024 there were approximately 1,155 fires that burned at least 1,000 acres. Collectively, Oregon’s fires over this period have burned a total area of 16.4 million acres (Figure 1). Wildfire activity increased noticeably after 2000 compared to earlier years, with most of the larger fires occurring after 2011. Most of the wildfires are concentrated in the eastern half of the Oregon due to its relatively dry climate which makes it more susceptible to burning.

Source: Monitoring Trends in Burn Severity (MTBS) database. Note that the MTBS only tracks wildfires that are at least 1,000 acres in size.
Oregon’s diverse agricultural sector offers a unique opportunity to study the impact of wildfires on land value across different agricultural uses. Wildfire impacts have been identified for other land uses, such as forestland and residential property values, while agricultural land markets have received relatively little attention in comparison. In a research paper presented at a recent conference, we examine how wildfires between 2000 and 2021 affected the price of agricultural land in Oregon. To do this, we collect all agricultural sales that took place within five years of a wildfire and compare before/after price changes between parcels that are close to wildfires (within 2km) with those located further away (2-10km). The basic idea is that by examining price changes over time in both areas and controlling for other factors that influence farmland prices (e.g., soil productivity and urban area proximity), we can isolate the impact of recent wildfire proximity on agricultural land values. To the extent that wildfires affect the future income that landowners would expect to earn from the land, they should be reflected in land prices.
The main results indicate that, after a wildfire, farmland located within 2km of a fire tends to sell for 22% to 34% less than land 2-10km away. Based on the sample average price of an acre of farmland sold between 2000 and 2023 ($2,801), this translates to a loss of $616 to $952 per acre. Our statistical models also show that larger wildfires tend to cause more severe negative impacts. Specifically, we find that very large fires, defined as those that burn more than 35,000 or 70,000 acres, reduce farmland prices by about 45% and 54%, respectively, which translates to a loss of up to $1,513 per acre.
When comparing wildfire impacts across different farmland categories, the most pronounced negative impacts are observed for pasture and grassland, where we estimate an average land-price impact of about -27% per acre. The effects we find for cropland are still negative but are smaller and noisier (i.e., have a larger margin of error), which is potentially due to the relatively small number of cropland sales near wildfires. These findings indicate that impacts on land used for grazing are driving the overall statewide results. Grazing land has been highlighted as being susceptible to wildfire in other contexts, such as Texas.
Our findings provide a clearer picture of how wildfires are changing the agricultural land market due to the perceived risks of nearby fires. Wildfires affect agriculture directly and indirectly through downwind and downstream channels (e.g., direct crop burning, livestock harm, reductions in soil health, and health impacts on farm workers). Although we do not isolate these different individual pathways, the land-price impacts we estimate can be thought of as reflecting the total effect of wildfire proximity on future land-related net income.
Of course, wildfires also have severe impacts on human health and communities, among other things. However, to date, impacts on agriculture have received relatively little attention. As wildfires become more prevalent and intense, particularly in the western United States, it is important to evaluate their impacts on different sectors of the economy. The better we understand how wildfire risk affects different aspects of the economy and environment, the more we can develop smarter policies, better land management decisions, and a more resilient future for Oregon agriculture. Our preliminary findings highlight how agricultural land markets in Oregon have responded to wildfire risk perceptions and provide a framework for quantifying the impacts of both future and more recent catastrophic wildfires, such as those that took place in Oregon in 2024.