Best Places03820, NH Best Neighborhoods
2026–2027 edition · Data updated July 2026
Every neighborhood inside ZIP code 03820, scored on 40 measures of daily life and ranked to fit what matters to you. The coast is close, and the measures below put a number on how close. To work out which city fits you best, start with the best places to live tool.
03820 ranks 2,648th of 33,110 U.S. zip codes on the BestNeighborhood index. It scores highest on low taxes by a wide margin, and property taxes are the weak spot.
The best neighborhoods in 03820
BestNeighborhood is the only ranking that scores 40 measures of daily life neighborhood by neighborhood and lets you re-weight every one of them yourself.
03820's strengths and weaknesses
Where 03820 ranks high
- Low income/sales/gas taxBetter than 99% of zip codes
- Crime safetyBetter than 96% of zip codes
- Heat safetyBetter than 96% of zip codes
- Low vacancyBetter than 95% of zip codes
- Health outlookBetter than 91% of zip codes
Where 03820 ranks low
- Low property taxBetter than only 6% of zip codes
- State fiscal healthBetter than only 12% of zip codes
- Housing crash safetyBetter than only 13% of zip codes
- QuietBetter than only 16% of zip codes
- Cheap childcare$1,297 a month, better than only 16% of zip codes
What it costs to buy a home in 03820
A household needs to earn about $132,000 a year to comfortably buy the median 03820 home, at 20% down and today's 30-year rate. That runs well above the area's median income of $110,519, so buying stretches a typical household.
Where the monthly payment goes
Assumes a 20% down payment, a 6.6% 30-year fixed rate, and a 28% share of income going to the payment. The rate is the 2026-07-23 30-year fixed average, series MORTGAGE30US from the St. Louis Fed, which publishes Freddie Mac's weekly survey. Against the median home value, property tax uses 03820's effective rate of 1.84%, and insurance is estimated at 0.4% of home value a year.
Renting versus buying
At today's prices and rents, renting stays cheaper than buying across the first 10 years here, so the case for buying rests on staying much longer or on prices rising faster than assumed. The chart tracks the running cost of each.
Who lives in 03820
03820's age mix sits close to the national median, and households here run smaller than average.
Residents by age
Racial and ethnic makeup has its own map. See the race and diversity map for 03820.
Who works in 03820, and how
Work in 03820 centers on manufacturing and health care & social. Unemployment is low, and employment has held roughly flat.
Largest industries
How people get to work
- Drive or carpool 73%
- Work from home 19%
- Transit, walk, or bike 8%
Life in 03820
03820 has more restaurants and bars per resident than 73% of zip codes and more parkland per resident than 89% of zip codes. The coast is about 18 minutes away. Dining, parks, and nightlife concentrates in some parts of 03820 and thins out in others, which the map shows.
What the weather is like in 03820, month by month
03820 sees roughly 97 pleasant days a year. July highs average about 82 degrees. January highs sit near 36, with lows near 19. The comfortable stretch runs May through September.
Show the monthly temperatures
| Month | Avg high | Avg | Avg low |
|---|---|---|---|
| January | 36° | 27° | 19° |
| April | 56° | 45° | 36° |
| July | 82° | 71° | 62° |
| October | 62° | 52° | 43° |
Flying in and out of 03820
The nearest airport, Portsmouth International at Pease, is about 8 miles away and is a small airport. The nearest major hub is General Edward Lawrence Logan International, about 58 miles away.
The best schools in and around 03820
Schools across 03820 average a B−, better than 59% of zip codes.
Top elementary schools
- Marshwood Great Works SchoolA+ · 85% proficient
- Newington Public SchoolA+ · 75% proficient
- Moharimet SchoolA+ · 75% proficient
Top middle schools
- Marshwood Middle SchoolA+ · 92% proficient
- Oyster River Middle SchoolA− · 58% proficient
- Barrington Middle SchoolB · 45% proficient
Top high schools
- Marshwood High SchoolA+ · 85% proficient
- Oyster River High SchoolA · 73% proficient
- Dover Senior High SchoolB · 47% proficient
Grades come from K-12 test scores, with scores projected for schools missing data. See every 03820 school and its grade on SchoolGrade.
03820 measure by measure
Cards are ordered by how much each measure matters to you, so the ones you weighted highest come first. Expand to see every measure. Percentages compare 03820 against the other 33,109 zip codes.
Who 03820 suits
Remote workers
Internet is fast and widely advertised and 19% already work from home.
Retirees
The weather beats 61% of zip codes and health care access beats 74%.
Common questions about living in 03820
Is 03820 a good place to live?
Using BestNeighborhood's default rankings, 03820 ranks 2,648th of 33,110 zip codes. It scores highest on low taxes, low crime, and heat safety, and lowest on property taxes and state finances. How good it is for you depends on which of those you weight most, which the map lets you set.
Is 03820 expensive to live in?
The median home is worth $443,227. The overall cost of living runs about 19% above the national average. Set against a $110,519 median income, cost of living beats 67% of zip codes.
Is 03820 safe?
Yes, 03820 is safer than 96% of zip codes. Safety varies a lot by neighborhood. Crime costs an estimated $171 per resident a year.
What is the weather like in 03820?
July highs average about 82 degrees, and January highs near 36 with lows near 19. That works out to about 97 pleasant days a year, more than 61% of zip codes.
Is 03820 good for families?
Schools beat 59% of zip codes, crime safety beats 96%, and childcare runs $1,297 a month.
Compare 03820 with other zip codes
Sources and methodology
Every measure on this page is scored for each neighborhood, then rolled up to 03820. Scores are absolute rather than ranked, which means a 60 in 03820 represents the same real quantity as a 60 anywhere else, and the ranking is a weighted average of those absolutes. The map colors come from a national scale calibrated against a population weighted random sample of 5,000 neighborhoods. That absolute scoring is what no other places-to-live ranking does: it puts a single neighborhood, a town, a metro, and a state on one scale, so the same 40 measures answer both which metro to move to and which street inside it to buy on. Read the full methodology.
03820 detail on BestNeighborhood maps:
- Walk Grade for 03820: walkability, transit, and biking, measured on the real street network rather than by straight line distance.
- Noise in 03820: road, rail, and aviation sound modeling calibrated against federal ground truth measurements.
- Conservative vs liberal map of 03820: precinct level election results apportioned to neighborhoods.
- Mobile and cell coverage in 03820: carrier by carrier coverage behind the cell score.
03820 detail on related sites:
- CrimeGrade: neighborhood crime rates behind the crime safety score.
- ISPreports.org: provider by provider internet availability and advertised speeds.
- CoverageWatch: the car insurance premiums behind the cheap car insurance score.
Federal and public data:
- U.S. Census Bureau American Community Survey: income, home value, rent, vacancy, commute time and mode, educational attainment, home age, age structure, household type, industry, and race.
- NOAA Global Surface Summary of the Day: the daily station record behind the monthly temperatures and the pleasant-day count.
- FAA Passenger Boarding Data: airport size and annual passenger counts.
- Freddie Mac Primary Mortgage Market Survey: the 30-year fixed rate used in the cost-to-buy estimate.
- FBI Crime Data Explorer: reported offenses behind the tangible crime cost estimate.
- U.S. EPA Air Quality System: five year average air quality index.
- FEMA National Risk Index: expected annual loss from natural hazards.
- CDC PLACES: disease burden, preventable risk, and barriers to care.
- National Center for Education Statistics: school enrollment and assessment inputs behind the school grade.
- FCC National Broadband Map: internet and wireless availability.
- U.S. Bureau of Labor Statistics: employment and job growth behind the local economy score.
- Religious activity uses a proprietary religious signal measurement.
Your priorities
Move a slider to say how much a measure matters. Zero turns it off.