Most and Least Polluted Cities by Industrial CO₂e Emissions

Top 25 U.S. cities with the highest and lowest industrial CO₂e greenhouse gas emissions from EPA-reporting facilities. Pop > 20,000.

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Top 25 — Most Polluted

Source: EPA GHGRP (2023)
#CityPopulationTotal CO₂e (MT)
1Houston, TX2,300,41957.9M MT
2Denver, CO713,73421.7M MT
3Baytown, TX84,53821.3M MT
4Midland, TX133,99819.9M MT
5Dallas, TX1,299,55318.9M MT
6Port Arthur, TX55,77918.5M MT
7Oklahoma City, OK688,69314.5M MT
8Corpus Christi, TX317,38313.2M MT
9Texas City, TX54,15912.2M MT
10Gary, IN68,60411.8M MT
11New York, NY8,516,20211.6M MT
12Monroe, MI20,33011.6M MT
13Cartersville, GA23,61710.3M MT
14Pasadena, TX149,34510.3M MT
15San Antonio, TX1,458,9549.9M MT
16Oak Creek, WI36,4739.8M MT
17Tulsa, OK412,3229.6M MT
18East Chicago, IN26,1589.5M MT
19Baton Rouge, LA223,6999.2M MT
20Pueblo, CO111,5148.7M MT
21Gillette, WY33,2788.6M MT
22Deer Park, TX33,8238.0M MT
23Beaumont, TX113,7107.9M MT
24Carson, CA93,5237.8M MT
25Linden, NJ43,6146.8M MT

Bottom 25 — Least Polluted

Source: EPA GHGRP (2023)
#CityPopulationTotal CO₂e (MT)
1Stockton, CA320,4700 MT
2Shafter, CA20,6181 MT
3Lake Worth Beach, FL42,650697 MT
4Bridgewater Town, MA28,669866 MT
5Palo Alto, CA67,2311K MT
6Kailua, HI21,8511K MT
7Stanton, CA38,6392K MT
8San Leandro, CA88,5312K MT
9Garden City, NY22,8662K MT
10Lincoln, CA51,6292K MT
11Trussville, AL26,1822K MT
12Anaheim, CA344,5532K MT
13Salinas, CA161,9933K MT
14Hattiesburg, MS48,5073K MT
15Bloomington, IL78,7033K MT
16South Burlington, VT20,4884K MT
17Pottstown, PA23,3924K MT
18San Marcos, CA94,0784K MT
19Adrian, MI20,4935K MT
20Littleton, CO45,0925K MT
21Washington, UT30,6865K MT
22Porterville, CA62,7655K MT
23Puyallup, WA42,6425K MT
24Oakland, CA438,0726K MT
25Shawnee, OK31,5116K MT

Houston, TX ranks #1 for most polluted among U.S. cities with populations over 20,000, with a value of 57.9M MT. Rounding out the top cities are Denver, CO, Baytown, TX, Midland, TX. On the other end, Stockton, CA has the least polluted value at 0 MT. This ranking includes only cities with populations above 20,000. Data sourced from EPA GHGRP (2023).