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Adelphi, MD vs Potomac, MD

125
Adelphi
Maryland
VS
-40.2%
208
Potomac
Maryland

The cost of living difference between Adelphi, MD and Potomac, MD is dramatic. Adelphi is 40.2% cheaper than Potomac, a gap that translates to thousands of dollars per year in household expenses. Adelphi has a cost index of 125 while Potomac sits at 208, making this one of the more striking comparisons on our site. Relocating between these cities would require a serious reassessment of budget and lifestyle expectations.

On the housing front, median rent in Adelphi is $1,757/month compared to $2,616/month in Potomac — a 33% difference. Home values follow the same pattern: Adelphi is more affordable at $401,700 median vs $1,105,900.

Median household income in Adelphi is $80,833 compared to $239,205 in Potomac (-66.2%). While Potomac is more expensive, its higher salaries more than compensate — residents there may actually end up with more disposable income. Looking at affordability, residents of Adelphi spend roughly 26.1% of their income on rent, more than the 13.1% in Potomac.

Climate-wise, both cities share similar average temperatures (59.3°F vs 59.3°F). Potomac receives more rainfall at 41.8" per year compared to 41.8" in Adelphi.

Income & Cost

Cost of Living Index
Adelphi
125
40% cheaper
Potomac
208
Median Household Income
Adelphi
$80,833
Potomac
$239,205
66% higher

Housing

Median Rent
Adelphi
$1,757
33% cheaper
Potomac
$2,616
Median Home Value
Adelphi
$401,700
64% cheaper
Potomac
$1,105,900
Population
Adelphi
17,210
Potomac
46,230

Salary Equivalency Calculator

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Everyday Prices

BLS Average Prices by metro area

Gasoline (regular)
Adelphi $3.26
Potomac $3.26
US $3.07
🥚
Eggs (grade A, large)
Adelphi $2.66
Potomac $2.66
US $2.50
🥛
Milk (whole)
Adelphi $4.28
Potomac $4.28
US $4.03
🍞
Bread (white)
Adelphi $1.97
Potomac $1.97
US $1.85
🍗
Chicken breast
Adelphi $4.41
Potomac $4.41
US $4.14
Electricity
Adelphi $0.20
Potomac $0.20
US $0.19

Climate

NOAA 30-year normals (1991-2020)

Avg Temp
Adelphi 59.3°F
Potomac 59.3°F
Summer High
Adelphi 90°F
Potomac 90°F
Winter Low
Adelphi 30°F
Potomac 30°F
Rainfall
Adelphi 41.8"
Potomac 41.8"
Rainy Days
Adelphi 118d
Potomac 118d