What's Wrong With Walk Score's Food Desert Map

Walk Score’s new food desert map is a potentially powerful tool in the ongoing policy debate about access to healthy foods. But it’s still a work in progress.

1 minute read

April 2, 2014, 5:00 AM PDT

By Anna Bergren Miller @abergrenmiller


Bill Bradley points to a few of the current map’s weaknesses. First is the necessarily arbitrary definition of access. Walk Score chose to look at stores within a five-minute walk, when ten might have been just as appropriate. Then there’s the deeper relationship between car ownership and consumption patterns. Are residents in a car-centric city like Tucson likely to walk to a grocery store under any circumstances?

Bradley also questions Walk Score’s failure to sort legitimate grocery stores from bodegas less likely to stock healthy foods. “My biggest fear is that Walk Score has glossed over some important data here, and conflated convenience with actual access to healthy foods.”

Monday, March 31, 2014 in Next City

Young Professional

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban and Environmental Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban and Environmental Planner

Get top-rated, practical training for planners

"Planetizen federal action tracker" logo superimposed over black and white image of US Capitol dome.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

September 16, 2026 - Zachary Whalen

Passengers board an Amtrak train under a cloudy sky.

Amtrak, CN end decades-long dispute with eight-year agreement

The new operating agreement establishes an updated framework for the companies to work together, including processes to resolve disputes.

September 18, 2026 - Mass Transit

A coal power plant in Iowa billows smoke into the air.

Nation's most wind-powered state turns to coal as data centers increase energy demand

For the first time in decades, Iowa has increased its generation of coal power.

September 17, 2026 - Inside Climate News

A rendering of the planned bridge over a large river. The bridge has two main support beams that form diamond shaped arches over the bridge.

Alabama scores up to $2.5 billion federal loan for largest infrastructure project in state’s history

The Mobile River Bridge and Bayway Project aims to ease congestion at Alabama’s worst bottleneck.

September 20 - NBC 15

Public land in Idaho. Most of the photo is a green field, with mountains and a forest in the distance.

Trump is considering data centers on 6 states' public land — some state officials say they had no idea

If the administration approves the proposed projects, data center and data center-related developments will cover 17,600 acres of public land.

September 20 - The Washington Sun

Two construction workers on a wind turbine, with two more in the background against a pink sky.

Despite court ruling, Trump is keeping nearly all wind projects in the US on hold

At least 110 wind energy projects have not heard from the government since a federal judge ruled that the Trump administration's freeze on wind turbine clearances was likely illegal.

September 20 - Heatmap