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Plymouth, NH vs Somersworth, NH

100
Plymouth
New Hampshire
VS
-5.3%
106
Somersworth
New Hampshire

Plymouth is moderately more affordable than Somersworth, with a 5.3% lower cost of living index. Plymouth scores 100 compared to 106 for Somersworth, where the US average is 100. This difference means residents of Somersworth can expect to pay noticeably more for everyday expenses, housing, and services.

On the housing front, median rent in Plymouth is $1,312/month compared to $1,410/month in Somersworth — a 7% difference. Home values follow the same pattern: Plymouth is more affordable at $274,200 median vs $295,800.

Median household income in Plymouth is $77,368 compared to $79,677 in Somersworth (-2.9%). The higher salaries in Somersworth partially offset the cost difference, but don't fully close the gap. Looking at affordability, residents of Plymouth spend roughly 20.3% of their income on rent, less than the 21.2% in Somersworth.

Climate-wise, both cities share similar average temperatures (46°F vs 47.7°F). Somersworth receives more rainfall at 41.2" per year compared to 38.1" in Plymouth.

Income & Cost

Cost of Living Index
Plymouth
100
5% cheaper
Somersworth
106
Median Household Income
Plymouth
$77,368
Somersworth
$79,677
3% higher

Housing

Median Rent
Plymouth
$1,312
7% cheaper
Somersworth
$1,410
Median Home Value
Plymouth
$274,200
7% cheaper
Somersworth
$295,800
Population
Plymouth
4,877
Somersworth
12,060

Salary Equivalency Calculator

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Everyday Prices

BLS Average Prices by metro area

Gasoline (regular)
Plymouth
Somersworth $3.09
US $3.07
🥚
Eggs (grade A, large)
Plymouth
Somersworth $2.52
US $2.50
🥛
Milk (whole)
Plymouth
Somersworth $4.06
US $4.03
🍞
Bread (white)
Plymouth
Somersworth $1.87
US $1.85
🍗
Chicken breast
Plymouth
Somersworth $4.18
US $4.14
Electricity
Plymouth
Somersworth $0.33
US $0.19

Climate

NOAA 30-year normals (1991-2020)

Avg Temp
Plymouth 46°F
Somersworth 47.7°F
Summer High
Plymouth 83°F
Somersworth 82°F
Winter Low
Plymouth 9°F
Somersworth 15°F
Rainfall
Plymouth 38.1"
Somersworth 41.2"
Rainy Days
Plymouth 150d
Somersworth 139d