Cars can be expensive, especially when maintenance and insurance rates are factored in, so many commuters turn to public transportation to get around town.
But even a pass for the bus, subway, or light rail comes at a price.
ValuePenguin, a personal finance website, ranked the US cities with the largest amount of commuters, from least to most expensive public transportation systems.
RELATED: Insane commutes all over the world
Insane commutes all over the world
Insane commutes all over the world
Boats cross the river Buriganga with passengers during dusk at Sadarghat in Dhaka August 15, 2012. REUTERS/Andrew Biraj (BANGLADESH - Tags: RELIGION SOCIETY MARITIME)
A security officer stands guard as passengers line up and wait for a security check during morning rush hour at Tiantongyuan North Station in Beijing May 27, 2014. Beijing tightened security checks at subway stations since last Saturday, following an attack in China's troubled Xinjiang region which killed 31 people on May 22, the deadliest act of violence in the region in years. REUTERS/Jason Lee (CHINA - Tags: CIVIL UNREST CRIME LAW TPX IMAGES OF THE DAY TRANSPORT)
BEIJING, CHINA - OCTOBER 16: Chinese commuters crowd onto a subway car on the metro during rush hour on October 16, 2014 in Beijing, China. (Photo by Kevin Frayer/Getty Images)
BEIJING, CHINA - SEPTEMBER 02: A Chinese boy holds an umbrellas as he sits on the back of his mother's bike as they wait at a traffic light in the rain on September 2, 2014 in Beijing, China. (Photo by Kevin Frayer/Getty Images)
People crossing Shibuya crossing at night.
People commute on board a boat at a canal in Bangkok, Thailand, January 14, 2016. REUTERS/Jorge Silva
Passengers sit on the rooftop of a commuter train as it arrives at the Manggarai train station in Jakarta October 26, 2011. PT KAI spokesperson Mateta Rizalulhaq said the state railway operator had cancelled more than 29 scheduled train services, from October 19 to November 29, to accommodate an upgrade of three electrical substations along the line. REUTERS/Beawiharta (INDONESIA - Tags: SOCIETY TRANSPORT BUSINESS)
Rickshaw pullers wade through a flooded road after heavy rains at Guwahati in the northeastern Indian state of Assam June 27, 2014. Seven people have been killed in flash floods, landslides and heavy rainfall in the four districts of Assam, local media reported on Friday. REUTERS/Utpal Baruah (INDIA - Tags: ENVIRONMENT DISASTER TPX IMAGES OF THE DAY)
Commuters travel in a suburban train in Mumbai February 24, 2010. India's Railways Minister Mamata Banerjee is presenting the annual budget for the railways in parliament on Wednesday. REUTERS/Arko Datta (INDIA - Tags: TRANSPORT POLITICS BUSINESS)
Commuters hang off a local passenger train in the morning in Colombo, Sri Lanka September 8, 2016. REUTERS/Dinuka Liyanawatte
People travel on a bus during rainfall in Karachi August 9, 2007. Pakistan is receiving a fresh spell of monsoon rains which will continue during the week, a Pakistan Meteorological Department handout stated on Thursday. REUTERS/Athar Hussain (PAKISTAN)
People hang onto an entrance of a commuter train which will transport them to Jakarta, in Depok, Indonesia's West Java province May 31, 2010. According to PT Kereta Api Indonesia, their trains operate 300 cars each day to serve about 500,000 commuters in Jakarta. In 2007 as many as 26 people were killed due to electricity shock and from falling off the roofs of trains. REUTERS/Crack Palinggi (INDONESIA - Tags: SOCIETY TRANSPORT IMAGES OF THE DAY BUSINESS)
HANOI, VIETNAM - NOVEMBER 04: Motorbike drivers covered-up with face masks try to get through the morning peak hour traffic at Nga Tu So intersection on November 4, 2016 in Hanoi, Vietnam. Hanoi is ranked as one of the most polluted city in Southeast Asia with the air quality monitor installed by U.S. Embassy in the city center often shows Air Quality Index (AQI) of over 200 at day time, listed as Ã¢ 'Very Unhealthy'. The main cause of this air pollution is over 5.3 million motorbikes and 560,000 cars in the traffic of Hanoi while figures continue to increase every year, according to reports. Vietnam's motorbike culture has taken over the bicycle in the capital, known to be one of the world's fastest expanding economy which resulted in the masks and gloves being a common sight in the tropical city, both to reduce inhalation of motorbike fumes and Vietnamese women to protect themselves from the sun. (Photo by Linh Pham/Getty Images)
A man walks on a pedestrian bridge overlooking traffic in Lagos, Nigeria, September 18, 2006. The Africities 4 summit aimed at tackling the problems of the continent's expanding cities and huge slums opened on Monday in Nairobi. REUTERS/Akintunde Akinleye (NIGERIA)
People travel in cable cars in La Paz, July 23, 2015. Bolivia already has the largest urban cable car system in the world. Now the booming country is tripling the size of the network and will soon have nine lines whizzing above the administrative capital of La Paz. Picture taken July 23. REUTERS/David Mercado
Motorists drive over the Bosphorus suspension bridge linking the city's Asian and European sides in Istanbul October 6, 2004. [Turkey won a provisional green light from the European Commission on Wednesday to open membership negotiations with the European Union, a watershed decision after 40 years of on-again, off-again talks.]
Subway commuters walk through an underground passage to transfer the lines between yellow and green at Consolacao station in Sao Paulo, Brazil on November 10, 2011. The yellow line, which was inaugurated in 2010 and is partially operated, carries approximately 425 thousand passengers per day, while its construction is expected to be finished in 2014. AFP PHOTO/YASUYOSHI CHIBA (Photo credit should read YASUYOSHI CHIBA/AFP/Getty Images)
Stranded commuters fill Grand Central Terminal after commuter rail service in and out of the terminal was suspended during the evening rush hour on Tuesday due to a fire under a section of elevated tracks, in New York, United States, May 17, 2016. REUTERS/Eduardo Munoz
CHICAGO, IL - JANUARY 07: Passengers heading into downtown wait on an 'L' platform for the train to arrive in below zero temperatures on January 7, 2014 in Chicago, Illinois. Platforms were crowded and trains were delayed because doors on the trains kept freezing open. Chicago is experiencing its third consecutive day of below zero temperatures. (Photo by Scott Olson/Getty Images)
Traffic is jammed on Sepulveda Boulevard as all exit ramps to Los Angeles International Airport are closed, causing major traffic problems, after a shooting incident at the airport November 1, 2013. A lone gunman stormed into a packed terminal at the Los Angeles International Airport and opened fire with an assault weapon on Friday, killing a federal security agent before he was shot and captured, authorities said. REUTERS/David McNew (UNITED STATES - Tags: CRIME LAW TRANSPORT)
Afternoon commuter traffic is at a standstill on a Calgary street as a major winter snowstorm hit Western Canada Friday afternoon in Calgary, Alberta, December 12, 2008. REUTERS/Todd Korol (CANADA)
People walk across Westminster Bridge on the second day of a train strike in London, Britain December 14, 2016. REUTERS/Neil Hall
TO GO WITH AFP STORY BY JAN HENNOP Thousands of bicycles are parked in a cycle parking lot near Delf Station, southern Netherlands, on October 21, 2012. Problems all-too familiar to car drivers the world over, from traffic jams to road-rage and lack of parking, are now also threatening to turn the Dutch dream of bicycling bliss into a daily hell. AFP PHOTO / JAN HENNOP (Photo credit should read Jan Hennop/AFP/Getty Images)
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They took into account the price of an unlimited monthly pass and the median income for the area, in order to figure out how large of a percentage transportation costs were for the average citizen.
Washington D.C. tops the list as the most affordable public transportation in the US. A monthly pass takes about $81 from your bank account or 1.85 percent of the median income.
Here's a surprise: A city known for being one of the most expensive in the country for housing costs, has the second most affordable public transportation.
San Francisco's $91 fee only takes 2.16 percent of the San Franciscan's salary.
Coming in at $68, Baltimore, Maryland has the lowest cost transportation on this list. But as compared to the median income for the area, that $68 takes 2.71 percent of their paycheck.
At number 8 on this list, New York City was literally built upon a public subway system.
The $121 unlimited monthly pass may sound steep, but the average New York income is higher, so getting around the Big Apple only costs 3.62 percent of their wages.