Philadelphia, PA vs Phoenix, AZ Cost of Living (2026)

Philadelphia has a cost of living index of 107.2, about 7.2% above the national average. The housing index is 108.2, so housing still does a lot to shape the local budget. Typical apartment rent is about $2,147 a month, and median home values are around $524,116. The median household income is approximately $66,000.

A $100,000 salary in an average-cost city buys about $93,300 worth of lifestyle in Philadelphia. The premium is noticeable, but it is not on the same level as New York or San Francisco. Outside housing, utilities and miscellaneous costs also run above the national baseline.

Pennsylvania has a flat state income tax of 3.07%, one of the lower rates in the Northeast. Philadelphia adds a city wage tax of 3.75% for residents and 3.44% for non-residents who work in the city. That combined burden is meaningful: a Philadelphia resident earning $80,000 pays approximately $5,500 in combined city and state income taxes. New Jersey residents who commute into the city pay the non-resident rate, which is still notable.

One specific cost of living observation: Philadelphia's property taxes are relatively low on paper due to the homestead exemption and the city's assessment practices, but the real estate transfer tax on home purchases is among the highest in the country at 4% (combined state and city). Buyers of a $250,000 home pay $10,000 in transfer taxes at closing, which is a real cost that should factor into purchase decisions.

Phoenix has a cost of living index of 105.2, about 5.2% above the national average. The housing index is 112.3, so housing still does a lot to shape the local budget. Typical apartment rent is about $1,860 a month, and median home values are around $607,541. The median household income is approximately $78,000.

A $100,000 salary in an average-cost city buys about $95,100 worth of lifestyle in Phoenix. The premium is noticeable, but it is not on the same level as New York or San Francisco. Outside housing, transportation and utilities also run above the national baseline.

Arizona has a flat state income tax of 2.5%, one of the lowest rates in the country. That's a meaningful advantage for workers who have been paying 5 to 10% in state income tax elsewhere. The combined effect of near-average overall costs and a low income tax rate makes Phoenix attractive for households prioritizing take-home pay.

One specific cost factor in Phoenix is energy bills. Air conditioning runs for six to eight months a year in the desert climate, and summer electric bills can range from $200 to $400 per month or more for a standard home. That cost is not reflected in the aggregate COL index in an immediately visible way but adds up to $1,500 to $3,000 in annual electricity costs above what residents in temperate climates pay. Water costs are also a consideration, as Arizona's long-term water supply remains a subject of ongoing policy and infrastructure debate.