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US Corn and Soybean Yield

US Midwest corn and soybean yield index from the Chicago Fed.

Source: Chicago FED (AgLetter — productivity changes for major crops)Last updated: Sep 21, 2026, 14:59Curated by Bui Thanh PhucAbout this data ↓

Indicator20252024202320222021202020192018201720162015201420132012201120102009200820072006200520042003200220012000199919981997199619951994199319921991199019891988198719861985198419831982198119801979197819771976197519741973197219711970196919681967196619651964
Corn271.4270.6261.1261.9260.3238.3240.7256254.3251.8230.9241.6221.5156210.8210.1227.3219.8215.1211204.9226.7201.6186.3191.7189.9186183.5171.5170.4153.5195.6142.3185.7143.9164.8159.2102.8168.3169.6164.3145.7109.3160.8156.2132.4157.9143126.5127.1129.6101.9133.4142.6132.7104.5129.5119121.4110.1114.1100
Soybeans234.8230227.7226.7238.3218202.6222.5212.4224.5208.9202.7184.3169.1186.2193.4183.4173.9179.5188.7186.8186.4133170.5169.6167.7163.6173169.6155.9158.4181.1150.5163.8150.5155.3149.4110.3155.3152.8154.7122.8123.3143.9143.8137.9144.6133.8141.6123.5132.899.1123.8130125120.9126121.8107.9105.9106.8100

Latest reading

The latest reading is 271.4, for 2025. That is +0.3% from 2024. The series on this page is annual and runs from 1964 to 2025. Source: Chicago FED (AgLetter — productivity changes for major crops).

Latest
271.4
2025
vs previous period
+0.3%
2024

About this data

US Midwest corn and soybean yield index from the Chicago Fed. This annual table tracks productivity changes for major crops in Region 7 since 1964. Available series include corn and soybeans measured as an index with the base year of 1964 equal to 100.

Frequently asked questions

What does the US Corn and Soybean Yield table measure?
It measures the yield per acre for corn and soybeans in the United States Midwest, specifically Region 7, using an index where the base year equals 100.
How often is the data published and how far back does it go?
The data is published annually by the Federal Reserve Bank of Chicago in the AgLetter, with historical series extending back to 1964.
Which crops are included in this dataset?
The dataset includes two primary crops cultivated in the United States Midwest: corn and soybeans.
How should annual fluctuations in the index be interpreted?
The index fluctuates sharply with annual weather conditions and long-term technological progress, reflecting productivity changes in United States agriculture over time.
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