A typical 1 cup serving of creamed corn contains 4.5 grams of protein (1.74 g per 100 g), which makes it a moderate source of protein. That covers roughly 9% of the 50 g reference Daily Value, so it adds toward your protein total for the day.
Only about 10% of the calories in creamed corn come from protein, so it is more of an energy food than a protein food. It is worth eating for other reasons; the protein it adds to a day is incidental.
Among the 105 vegetables in the database, creamed corn ranks 14th by protein per serving, and 514th out of all 796 foods on the site. Set against brussels sprouts, another vegetable entry in the database, a serving carries about 0.5 g more protein (brussels sprouts has 4 g per 1 cup cooked).
It is an incomplete protein on its own; pairing it with other plant foods across the day covers the full range of essential amino acids. The serving above is measured by volume at 256 g. The per-100 g figure lets you compare it directly against any other food here, whatever its serving.
Source: USDA FoodData Central #169215 - "Corn, sweet, yellow, canned, cream style, regular pack" (SR Legacy, published 4/1/2019). Values are the published reference figures for that record, not lab measurements for a specific brand or batch.
Quick answers
Creamed corn protein FAQ
How much protein is in creamed corn per 100 g?
Creamed corn has 1.74 g of protein per 100 g. A typical 1 cup serving (256 g) provides 4.5 g.
Is creamed corn a complete protein?
No. Creamed corn is an incomplete protein on its own; pairing it with other protein sources across the day covers the full range of essential amino acids.
How much of the Daily Value does a serving of creamed corn cover?
A 1 cup serving of creamed corn contains 4.5 g of protein, about 9% of the 50 g reference Daily Value.
Is creamed corn a good source of protein?
Creamed corn is a moderate source of protein, and about 10% of its calories come from protein, which makes it more of an energy food than a protein food. Set against brussels sprouts, another vegetable entry in the database, a serving carries about 0.5 g more protein (brussels sprouts has 4 g per 1 cup cooked).