Idanha is a city on the Marion County/Linn County line in Oregon, United States, on Oregon Route 22 and the Santiam River. Take a look below for 10 interesting and awesome facts about Idanha, Oregon, United States.

1. The population was 134 at the 2010 census.

2. The Marion County portion of Idanha is part of the Salem Metropolitan Statistical Area, while the Linn County portion is part of the Albany–Lebanon Micropolitan Statistical Area.

3. According to the United States Census Bureau, the city has a total area of 1.09 square miles (2.82 km2), of which 1.06 square miles (2.75 km2) is land and 0.03 square miles (0.08 km2) is water.

4. Idanha encompasses the area of New Idanha in Linn County, which the USGS classifies as a separate populated place.

5. This region experiences warm (but not hot) and dry summers, with no average monthly temperatures above 71.6 °F (22.0 °C).

6. According to the Köppen Climate Classification system, Idanha has a warm-summer Mediterranean climate, abbreviated “Csb” on climate maps.

7. Idanha is served by the Santiam Canyon School District.

8. Idanha served as the eastern terminus of a transcontinental railroad, proposed by Colonel T. Egenton Hogg, that terminated in Idanha because of a lack of funding. Idanha saw rail service until the 1950s, when the track was removed for development of Detroit Lake, situated over the historical roadbed of the former Oregon Pacific Railroad.

9. As of the census of 2010, there were 134 people, 65 households, and 34 families living in the city. The population density was 126.4 inhabitants per square mile (48.8/km2). There were 86 housing units at an average density of 81.1 per square mile (31.3/km2).

10. The racial makeup of the city was 96.3% White and 3.7% from two or more races. Hispanic or Latino of any race were 5.2% of the population.