August 2024 U.S. eGrocery Sales Climbed 7% Versus Year Ago to $9.9 Billion

Market Overview

The U.S. online grocery market ended August 2024 with $9.9 billion in monthly sales, a 7.0% increase over last year as all three fulfillment methods posted year-over-year (YOY) sales growth according to the Brick Meets Click/Mercatus Grocery Shopper Survey fielded August 30-31, 2024. 

August also marked the third straight month of high-single-digit sales gains for eGrocery in 2024, primarily driven by strong promotional efforts for subscription and membership programs that started in May.

Delivery continues to lead the charge. 

Delivery contributed more than half of the overall sales gains for the month, increasing 10.2% versus last year to $3.9 billion, propelled by a continued surge in the number of monthly active users (MAUs). 

Ship-to-Home accounted for over one-fifth of the sales gains, climbing 8.9% YOY to $1.8 billion as significantly higher average order values (AOV) more than offset flat MAU growth and a drop in order frequency. 

Pickup finished the month up 3.5% to $4.3 billion as moderate MAU expansion countered a pullback in order frequency and AOV finished up by 3.5% compared to last year.

Who benefited from the promotional activities? 

Delivery and Walmart are the primary beneficiaries and have experienced larger gains in their respective MAU bases than overall eGrocery, which grew by 6% YOY in August. 

• Delivery’s MAU base expanded by nearly 16% (almost three times faster than Pickup’s MAU base).
• Walmart’s MAU base expanded by approximately 9% YOY.  

Promotions aren’t optional anymore — they’re essential.

The driving force behind the recent eGrocery sales growth has been aggressive promotions, particularly around subscription and membership programs. Since May 2024, companies like Instacart, Walmart, and Amazon have been offering substantial discounts on memberships, leading to impressive growth in delivery services. 

“Achieving growth will only get more challenging for grocers that don’t have a competitive offering or ways to offset the discounts,” said David Bishop, partner at Brick Meets Click. “Converting a customer into a member/subscriber motivates them to buy more frequently, especially given that most firms are promoting ‘free’ delivery. Even though there’s a cost to join, explicit fees are an on-going source of friction that many shoppers want to avoid.”

Sales growth accelerates to 7.9% YOY for June – August 2024.

The collective impact of these promotional efforts is evident after analyzing sales results across the last six months versus the same months in 2023. 

• In the three-month period following the start of the promotions (June – August 2024), total eGrocery sales growth accelerated, increasing to 7.9% YOY compared to 1.4% YOY for the preceding three-month period (March – May 2024). 
• The difference in sales growth between the two periods equates to a 650-bps gain; however, the incremental impact is likely closer to 220 bps after accounting for the effect of seasonality which Brick Meets Click estimated based on monthly eGrocery sales over the last four years.

The impact on Delivery has been dramatic. 

Compared to last year, Delivery sales grew by 16.1% during the June – August 2024 period versus just 0.6% during the March – May 2024 period. 

The main growth drivers for Delivery were an expanded MAU base, which increased by 13.9% YOY during June - August versus 4.6% during March – May, plus skyrocketing order frequency, which climbed 14.9% YOY versus a decline of 2.2% in the prior 3-month period.

For Walmart, the positive impact of the promotions likely extends beyond online sales. 

Approximately 30% of U.S. households now shop for groceries primarily at Walmart. In addition, those Walmart customers are more likely to buy groceries online anywhere, and now when they buy eGrocery, they are increasingly likely to do so from Walmart as well. 

Regional grocers need to play to their strengths.

“We know regional grocers are facing increased competition from retail giants like Walmart and Amazon, who can leverage huge pools of CPG ad monies to sustain aggressive promotions and capture more share of the online business,” said Mark Fairhurst, Chief Growth Officer at Mercatus. “Regional grocers should play to their strengths in fresh foods, private label, and convenient locations while investing in targeted promotions that resonate with existing customers. Creating stronger customer connections via relevant, personalized engagement is vital for building loyalty and competing digitally today.”

For more information about August 2024 results, check out the latest Brick Meets Click eGrocery Dashboard or visit the eGrocery Monthly Sales report page for information about subscribing to the full monthly report.

About this consumer research 

The Brick Meets Click/Mercatus Grocery Shopping Survey is an ongoing independent research initiative created and conducted by the team at Brick Meets Click and sponsored by Mercatus. 

Brick Meets Click conducted the most recent survey on August 30-31, 2024, with 1,829 adults, 18 years and older, who participated in the household’s grocery shopping, and a similar survey in August 2023 (n=1,704). Results are adjusted based on internet usage among U.S. adults to account for the non-response bias associated with online surveys. Responses are geographically representative of the U.S. and weighted by age to reflect the national population of adults, 18 years and older, according to the U.S. Census Bureau.

The three receiving methods for online grocery orders are defined as follows:

• Delivery includes orders received from a first- or third-party provider like Instacart, Shipt or the retailer's own employees.
• Pickup includes orders that are received by customers either inside or outside a store or at a designated location/locker.
• Ship-to-Home includes orders that are received via common or contract carriers like FedEx, UPS, USPS, etc.