F
38%
Overall NAT. AVG.
3%
Groceries NAT. AVG.
116%
Housing NAT. AVG.
Date & Last Updated: These cost of living estimates reflect 2026 modeled data using U.S. Census housing inputs and AI-assisted city-level pricing models.
The cost of living index is based on a national average of 100. For example, if the cost of living score is 90, then the estimated cost of living is 10% lower than the national average. If the score is 110, then the estimated cost of living is 10% higher than average. The overall index is calculated using weighted estimates across major everyday expense categories, including housing (30%), groceries (16%), transportation (12%), healthcare (10%), utilities (8%), lifestyle and entertainment (8%), household expenses (8%), and education and childcare (8%). All values are AI-assisted city-level estimates designed for directional comparisons.
Index Portsmouth New Hampshire National
Cost of living138110100
Groceries103103100
Health care103104100
Housing216125100
Transportation104103100
Utilities107106100
Lifestyle & Entertainment108103100
Household Items101102100
Education & Childcare108105100
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An Overview of Cost of Living in Portsmouth, NH

Getting a feel for the cost of living in Portsmouth is essential for anyone planning to relocate, as it empowers them to make informed financial decisions, secure a comfortable lifestyle and maintain financial stability in their new environment. The cost of living in Portsmouth is 138, which is 38% higher than the national average. Relocating individuals may need to adjust their savings and investment strategies based on the cost of living in the new location. It influences decisions about retirement planning, investments and financial goals.

If you prioritize affordability when seeking a new place to live, Portsmouth may not be your ideal choice, as it ranks among the most expensive locations in the entire United States. A very small amount of areas exhibit a cost of living at least 20% higher than the national average, and unfortunately, Portsmouth falls into this category, which may not align with your preferences for a budget-friendly living environment.

Housing costs make up a big chunk of the cost of living in Portsmouth, and they usually eat into a large part of your take-home pay. Unfortunately, in this area, both buying a home and renting one costs 116% more than the average city. This includes stuff like home prices, rent, mortgage rates, and insurance.

What Do Locals Say About the Cost of Living in Portsmouth?

Locals have the inside scoop on their city. So, we polled 13 residents in Portsmouth to learn how they view the cost of living. We asked how they felt about the cost of living in their area, and if they thought that prices were increasing, decreasing or staying the same. The verdict? 38% find it reasonable with decreasing prices, but 62% think it's quite pricey, with prices that continue to rise.

Is Portsmouth Affordable?

Is Portsmouth an affordable place to live? That's a valid question to ask when you're thinking about moving to a new city. After all, how much it costs to live somewhere can be a huge factor in your decision. Affordability can be broken down into 3 common categories. The cost of living index (we talked about it earlier), housing expenses and income levels all play a big role in figuring out if a place is affordable. For instance, in Portsmouth, the median home price is 147.3% higher than what most folks pay across the country, and monthly rent prices are 43.1% higher than the usual rates. Income levels in Portsmouth come in at $115,727, which is 42.3% higher than the national average.

What Factors can Influence the Cost of Living in Portsmouth?

Healthcare: Healthcare expenses and insurance premiums can vary significantly depending on the specific city or state. Factors such as accessibility to healthcare facilities, out-of-pocket expenses for doctor's visits, dental care expenses, prescription costs and specialized medical care fees can all influence the overall cost of living. In Portsmouth, healthcare costs are 3.2% higher than the national average.

Transportation: In cities with limited or no public transportation, residents may find it necessary to own and maintain vehicles, thereby elevating the cost of living. Monthly expenditures include fuel, insurance, routine maintenance and potential lease or financing commitments. In Portsmouth, the transportation index stands at 3.5% higher than the national average.

Housing: High demand for housing in desirable locations can drive up property prices and rental rates. This can be a primary contributor to a higher cost of living. While low demand for housing, especially in undesirable locations, can have the reverse effect and drive prices down, resulting in a lower cost of living. The housing index in Portsmouth, is 116% higher than the national average.

Where is the Data From?

The cost of living estimates displayed for Portsmouth are modeled using a U.S. average baseline of 100, helping provide a useful comparison of local living expenses. Housing calculations include U.S. Census home price and rental data, while all other values are AI-assisted estimates based on regional cost patterns, climate, transportation, and everyday spending expectations. These values are intended for directional comparisons across cities.

Cost Of Living Quick Facts

  • The cost of living in Portsmouth is 25% higher than the New Hampshire average
  • The cost of living in Portsmouth is 38% higher than the national average
  • Portsmouth housing is 116% higher than the national average
  • New Hampshire general sales tax is 100% lower than the national average
  • New Hampshire state income tax is 54% higher than the national average

Most Affordable Places to Live in and Around Portsmouth

See all the best places to live around Portsmouth

Compare Portsmouth, NH Cost of Living

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      Median Income & Debt-To-Income Ratio

      Median Income Per Year Per Month Max Budget (28% DTI) Max Budget (36% DTI)
      Owners$166,111$13,843$3,876$4,984
      Renters$90,592$7,549$2,114$2,718
      The percentage of monthly income spent on housing related expenses can help predict the affordability of housing in Portsmouth, NH, as well as what the overall cost of living might be. Generally, a good rule to follow is that the debt-to-income (DTI) level you want to maintain is 28 percent or less of your income on your rent or mortgage payments and not more than 36 percent of income on all expenses and debts. In Portsmouth, homeowners have a median income of $166,111. Using that number, a maximum of $3,876 per month should be allocated to housing expenses. For those who are renting instead of owning, the median income is $90,592, which means there is a maximum of $2,114 to be spent on the costs of renting a home or apartment.

      New Hampshire Sales Tax

      State General Sales Tax With Max Surtax
      New Hampshire 0% 0%

      New Hampshire Income Tax

      State Income Tax (Low) Income Tax (High)
      New Hampshire 4% 4%

      Nearby cities with low cost of living

      City Population Cost of Living Index National Avg.
      Berwick, ME2,0581065.7%
      Somersworth, NH12,3811088.5%
      Exeter, NH9,64911312.8%
      Dover, NH33,09511616.0%
      Newmarket, NH5,95511717.0%
      Portsmouth, NH22,06013837.9%

      Cities with similar population

      City Population Cost of Living Index National Avg.
      Carrboro, NC22,05612625.7%
      Bear, DE22,0651099.1%
      Huntsville, ON22,073n/a 
      Biddeford, ME22,07711312.9%
      Bellview, FL22,042972.8%
      Portsmouth, NH22,06013837.9%
      Date & Last Updated: These cost of living estimates reflect 2026 modeled data using U.S. Census housing inputs and AI-assisted city-level pricing models.