We compared prices at Aldi, Trader Joe's, Target, and Walmart in 3 cities — here's where staples cost the most

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Key Points
  • Grocery prices are up 10% over last year, according to recent BLS data.
  • Grow sent its reporters out to shop for a basket of 13 kitchen staples in the suburbs of New York, Chicago, and Los Angeles, at four national grocers: Aldi, Target, Trader Joe's, and Walmart.
  • Trader Joe's was most expensive, nationwide.

Inflation continues to drive the cost of groceries higher and higher, according to data from the Bureau of Labor Statistics. Grocery prices in March were 10% higher than they were during the same month last year.

Grow sent reporters out in three separate locations to shop for a basket of 13 kitchen staples in the suburbs of New York, Chicago, and Los Angeles, at four national grocers: Aldi, Target, Trader Joe's, and Walmart. Here's what we found.

In big city suburbs, prices are surprisingly consistent

Despite some wide variations for specific products among grocers and zip codes, the final cost of those baskets ended up being within $1 of one another.

The average price of our grocery list was highest in Dekalb, Illinois — a suburb of Chicago — at $46.07. But that was only 25 cents more than the average for our reporter in Hudson County, New Jersey, outside New York City, and only $1.08 more than the basket for our reporter in Corona, California outside Los Angeles.

The average price of a basket of 13 kitchen staples is surprisingly consistent across the suburbs of 3 major U.S. cities

Dekalb, IL Corona, CA Hudson County, NJ
Bananas, 2 lbs.1.150.931.05
Butter, 1 lb.
12 eggs2.162.691.80
Gallon of milk3.023.674.51
Cheddar cheese, 1 lb.4.163.571.69
Chicken breast, 3 lbs.10.9810.0113.48
Ground beef, 1 lb.5.545.615.58
Bacon, 12 oz.5.635.054.95
Orange juice, 52 fl. oz.2.62.752.66
Flour, 5 lbs.1.932.011.96
Sugar, 4 lbs.3.403.423.28
Spaghetti, 1 lb.1.020.910.96
Loaf of bread1.261.271.07

Source: Grow

Consistency could be attributed to the fact that retailers, regardless of region, are facing similar hurdles, says Zain Akbari, an equity analyst at Morningstar. "High transportation costs, raw material, and input prices is more national in character," he says, and drive costs up.

There were, however, wider discrepancies in the price of individual items from retailer to retailer.

Trader Joe's was the most expensive across the board

Trader Joe's is known for one-of-a-kind steals such as its "Two Buck Chuck" wine, but it ended up being the priciest retailer of the four we visited.

Regardless of region, grocery costs were usually highest at the popular supermarket chain. While the prices for some items like bananas, milk and cheese, were comparable to those at the other retailers we checked, there were certain outliers, like bread and chicken, that made the bill at Trader Joe's notably more expensive.

For example, the average price of 3 lbs. of boneless, skinless chicken breasts across the three Trader Joe's locations we checked came in at almost $19. That was more than double the price at Aldi, Target, and Walmart.

The average cost of a five-pound bag of flour and a loaf of white bread at Trader Joe's was almost double what it was at the other three retailers.

Walmart and Target had comparable prices, and Aldi was the least expensive retailer.

Some items, like eggs, cost more at Walmart

Certain items were surprisingly expensive at other retailers, though. For example, Walmart had the most expensive eggs in each city — even pricier than Trader Joe's, which was the most expensive grocer overall.

For a retailer that touts low prices, dramatically increasing the price of a highly "visible" item like eggs might seem like an odd choice, says Francesco D'Acunta, assistant professor of finance at Boston College who co-authored the paper "How Grocery Prices Influence Consumers' Inflation Expectations."

But at a time when consumers are braced for soaring prices by feverish media coverage, they might chalk up the higher price point to inflation and be less likely to shop around or fault the retailer. "Prices are increasing all around consumers, so this idea of punishing the retailer for increasing prices is not there," D'Acunta says.

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