Here's how Houston ranks on annual list of greenest cities in the US

room for improvement

Yikes, Houston is very far from being considered among the greenest cities in the country. Photo via Getty Images

Bad news, Houston. The Bayou City is the third worst metro when it comes to the country's greenest cities.

According to WalletHub's recently released Greenest Cities in America report, Houston is No. 98 out of 100 of the largest cities that were ranked in the study, which was based on information from the U.S. Census Bureau, U.S. Environmental Protection Agency, The Trust for Public Land, U.S. Department of Energy - The Alternative Fuels Data Center, and more.

“There are plenty of things that individuals can do to adopt a green lifestyle, from recycling to sharing rides to installing solar panels on their homes. However, living in one of the greenest cities can make it even easier to care for the environment, due to sustainable laws and policies, access to locally-grown produce and infrastructure that allows residents to use vehicles less often," says Chip Lupo, WalletHub Analyst. "The greenest cities also are better for your health due to superior air and water quality.”

Houston scored 36.88 points out of 100, and comes in dead last on the environment ranking. Here's how the city performs when it comes to the other metrics:

  • No. 87 for transportation
  • No. 52 for energy sources
  • No. 61 for lifestyle and policy
  • No. 91 for greenhouse-gas emissions per capita
  • No. 30 for percent of green space
  • No. 86 for median air quality index
  • No. 97 for annual excess fuel consumption
  • No. 56 for percent of commuters who drive
  • No. 39 for walk score
  • No. 33 for farmers markets per capita

The big winners on the report are mostly on the West Coast. Of the top 10, six cities are from California. These are the greenest cities, per the report:

  1. San Diego, California
  2. Washington, D.C.
  3. Honolulu, Hawaii
  4. San Francisco, California
  5. San Jose, California
  6. Seattle, Washington
  7. Oakland, California
  8. Portland, Oregon
  9. Fremont, California
  10. Irvine, California
Texas isn't seen on the list until Austin, which ranked No. 26. The rest of the major Lone Star State major metros include San Antonio at No. 44, Fort Worth at No. 76, and Dallas at No. 81.While this report is pretty damning, there's not a general consensus that all hope is lost for Houston when it comes to being green. Last year, the city was ranked as having the lowest carbon footprint, based on a report from Park Sleep Fly.

However, WalletHub's report has pretty consistently ranked Houston low on the list. Last year, Houston was slightly higher up at No. 95. In 2022 and 2021, the city claimed the No. 93 spot.

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This article originally ran on EnergyCapital.

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Houston tied with five other cities for the worst greenhouse gas emissions.. Photo via Getty Images

Report: Here's how Houston ranks among the country's greenest cities

Seeing green

Houston may be the energy capital of the world, but it apparently isn't the capital of "greenness."

The Bayou City lands at No. 93 among the 100 largest U.S. cities in a new WalletHub ranking of the country's greenest places. Houston held the same spot in last year's ranking. Aside from being the eighth worst city in the 2021 study, Houston is the lowest-ranked city in Texas.

To determine the cities promoting an environmentally friendly lifestyle, WalletHub compared the 100 largest cities across 28 key "green" indicators. Those factors include greenhouse gas emissions per capita, number of smart energy policies and initiatives, and green job opportunities.

Unfortunately, Houston's overall showing isn't impressive. Here is a sampling, with No. 1 being best, No. 50 being average, and No. 100 being worst:

  • Excess fuel consumption per year, No. 97.
  • Greenhouse gas emissions per capita, No. 94. Houston tied with five other cities for the worst greenhouse gas emissions.
  • Median air quality index, No. 72.
  • Share of commuters who drive, No. 54.
  • Percentage of green space, No. 37.
  • Farmers markets per capita, No. 35.
  • Walkability, No. 34.

Here is how other Texas cities fared:

  • Austin, No. 26.
  • Garland, No. 44.
  • San Antonio, No. 46
  • Laredo, No. 68.
  • El Paso, No. 69.
  • Irving, No. 74.
  • Plano, No. 79.
  • Lubbock, No. 83.
  • Arlington, No. 85.
  • Dallas, No. 89.
  • Corpus Christi, No. 90.

San Diego tops the WalletHub list.As Houston hangs out toward the bottom of the WalletHub ranking, government and business leaders in the region are striving to make Houston greener.

For instance, the City of Houston in August launched a pilot project that will speed up the permitting process for environmentally friendly stormwater projects.

And just this month, Houston Mayor Sylvester Turner declared October 6 as Energy Efficiency Day. The occasion encouraged residents and businesses to support the city's clean energy goals. "Implementing energy efficiency measures is the cheapest, fastest, and cleanest way to reduce Houston's energy demand," the mayor's office says.

In a news release, Laura Patiño, the city's interim chief resilience officer, says Houston must come up with solutions to combat climate change, ensure a "just and equitable" transition to clean energy, and "promote economic growth in an inclusive and transparent manner."

Despite the poor performance in the WalletHub study, Houston continues to make headway in green energy.

For example, Turner in August touted Houston's status as the No. 1 municipal entity in the U.S. for the most annual consumption of power from renewable sources. The U.S. Environmental Protection Agency (EPA) list features participants in its Green Energy Partnership.

In a news release, Turner said the EPA recognition is "great news for the city of Houston and, by extension, for the rest of the world. We are going big to set the example for cities around the world. If 100 percent renewable energy can happen in Houston, it can happen in any other city."

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5 Houston innovators who made headlines in August 2025

Featured Innovators

Editor's note: Innovators hailing from both Rice University and University of Houston made headlines in August by developing a new biomaterial that could replace plastic and deploying a new flood scale to help Houstonians stay safe. Plus, one local innovator has a big move on the horizon.

Here are five Houston innovators to know right now.

​M.A.S.R. Saadi and Muhammed Maksud Rahman, Rice University and University of Houston

A team led by M.A.S.R. Saadi and Muhammad Maksud Rahman has developed a biomaterial that they hope could be used for the “next disposable water bottle." Photo courtesy Rice University.

Collaborators from two Houston universities are leading the way in engineering a biomaterial into a scalable, multifunctional material that could potentially replace plastic. The research was led by Muhammad Maksud Rahman, an assistant professor of mechanical and aerospace engineering at the University of Houston and an adjunct assistant professor of materials science and nanoengineering at Rice University. M.A.S.R. Saadi, a materials science and nanoengineering doctoral student at Rice University, was first author on the study. The study introduced a biosynthesis technique that aligns bacterial cellulose fibers in real-time, which resulted in robust biopolymer sheets with “exceptional mechanical properties,” according to the researchers. Learn more.

Paul Cherukuri, Rice University

Paul Cherukuri, Rice’s first vice president for innovation and chief innovation officer, will leave his post next month. Photo via Rice.edu

Paul Cherukuri, Rice University's top innovation executive, responsible for some of Rice’s major innovative projects like the Rice BioTech LaunchPad and Rice Nexus, will leave the university at the end of September to accept a position at the University of Virginia. Cherukuri, Rice’s first vice president for innovation and chief innovation officer, will become the University of Virginia’s Donna and Richard Tadler University Professor of Entrepreneurship and the school's first chief innovation officer. Learn more.

Steven Paul Woods (pictured) and Natalie C. Ridgely, University of Houston

Steven Paul Woods, professor of Psychology, at UH. Photo courtesy of UH

University of Houston Professor of Psychology Steven Paul Woods and doctoral student Natalie C. Ridgely recently partnered with the Space City Weather (SCW) blog to create a new flood alert scale for the trusted weather site. “My lab does work on how people access, understand, and use health information, so I thought we could adapt some of that ongoing work and our expertise in psychological science to answer questions about weather communication, and help keep Houstonians informed and safe,” said Woods. Learn more.

Rice biotech studio secures investment from Modi Ventures, adds founder to board

fresh funding

RBL LLC, which supports commercialization for ventures formed at the Rice University Biotech Launch Pad, has secured an investment from Houston-based Modi Ventures.

Additionally, RBL announced that it has named Sahir Ali, founder and general partner of Modi Ventures, to its board of directors.

Modi Ventures invests in biotech companies that are working to advance diagnostics, engineered therapeutics and AI-driven drug discovery. The firm has $134 million under management after closing an oversubscribed round this summer.

RBL launched in 2024 and is based out of Houston’s Texas Medical Center Helix Park. William McKeon, president and CEO of the TMC, previously called the launch of RBL a “critical step forward” for Houston’s life sciences ecosystem.

“RBL is dedicated to building companies focused on pioneering and intelligent bioelectronic therapeutics,” Ali said in a LinkedIn post. “This partnership strengthens the Houston biotech ecosystem and accelerates the transition of groundbreaking lab discoveries into impactful therapies.”

Ali will join board members like managing partner Paul Wotton, Rice bioengineering professor Omid Veiseh, scientist and partner at KdT Ventures Rima Chakrabarti, Rice alum John Jaggers, CEO of Arbor Biotechnologies Devyn Smith, and veteran executive in the life sciences sector James Watson.

Ali has led transformative work and built companies across AI, cloud computing and precision medicine. Ali also serves on the board of directors of the Drug Information Association, which helps to collaborate in drug, device and diagnostics developments.

“This investment by Modi Ventures will be instrumental to RBL’s growth as it reinforces confidence in our venture creation model and accelerates our ability to develop successful biotech startups,” Wotton said in the announcement. "Sahir’s addition to the board will also amplify this collaboration with Modi. His strategic counsel and deep understanding of field-defining technologies will be invaluable as we continue to grow and deliver on our mission.”

New peer-to-peer grocery app launches in Katy with plans to expand

local goods

If computer scientist and mobile applications developer Arfhan Ahmad has his way, his burgeoning Houston-based startup, QuickPantri, will be directly responsible for adding to the definition of what it truly means to be neighborly.

“Fast delivery from next door” — that’s the tagline for Ahmad’s hyperlocal grocery platform, which focuses on solving last-mile access, neighborhood commerce and food affordability.

“I’m passionate about combining technology with real-world problems, especially those that impact working families and underserved communities,” Ahmad says. “I moved to Houston two years ago, and here I realized that grocery stores are far from the neighborhoods.”

Ahmad envisions QuickPantri will help people who need grocery items urgently, sparing them a trip to the store or costly delivery fees by letting them source items directly from their neighbors’ cupboards.

With his new peer-to-peer app, members — especially those tethered to their residence due to disability or immobility or those unable to make grocery runs with children in tow — can simply log on to QuickPantri and purchase grocery items from their own neighbors.

“My initial thought was, 'What if we have an app that allows people to open a grocery store at their own home and sell any essential items to other neighbors?'” Ahmad says. “So, after having this idea in my mind, I asked my neighbors, 'If I sell groceries from my home, would you buy them from me?' And most of them gave me positive responses. After doing some surveys online on the Nextdoor app and Facebook, I started building this app.”

And like a good neighbor, Ahmad launched QuickPantri in his own neighborhood in Katy.

He then looked at scaling, first by securing approvals from Harris County to sell pre-packaged grocery items from his home. The response exceeded his own expectations. In the last two months, Ahmad estimates that he has delivered to 250 homes in the Katy area. Ahmad has seen that most customers use the app in search of late-night snacks and drinks.

“Ninety-five percent of those orders were delivered in 15 to 30 minutes … Our plan is to expand in other high-risk communities and other cities,” Ahmad says.

To date, Ahmad has obtained approvals from Arizona, Utah and Nevada.

He’s in the process of launching version two. Starting September 1, other sellers will be able to join the app and apply to sell goods to their neighbors. Ahmad says he currently has 50 sellers on the waitlist.

Each seller is allotted a potential selling radius of 10 minutes to ensure swift delivery. Also, sellers are required to deliver the goods via bicycle or on foot, making QuickPantri a pollution-free delivery option.

Currently, the app only sells pre-packaged items and sellers are required to show the expiration date in photos. The app utilizes AI to check pricing for goods in the area, and Ahmad says the app typically lists prices lower than what AI predicts.

Outside of geographic reach and number of buyers and sellers, Ahmad also hopes to expand the list of items that can be sold on the app to include clothes, electronics and cleaning supplies.

“We want our seller to be the ultimate source,” Ahmad says.

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