US ZIP Code
03810

Alton Bay, NH

Belknap County  ·  New Hampshire

● Active
👥 2,269 Population ↑ 28% since 2019
💰 $143,102 Median HH Income
▲ 88% above avg ↑ 52% since 2019
🎂 56.5 Median Age
🏠 $572,900 Median Home Value
▲ 105% above avg ↑ 48% since 2019
🎓 60.5% College Grads
▲ 56% above avg
📊 1.3% Unemployment
▼ 73% below avg ↓ 83% since 2019
ZIP Code Details
ZIP Code03810
CityAlton Bay
StateNew Hampshire (NH)
CountyBelknap County
Area Code603
Elevation854 ft
Latitude43.51256
Longitude-71.294893
TimezoneNew York (DST)
FIPS33001
ZIP TypeStandard
StatusActive
People & Population (ACS 2023)
♂ Male 49.5% (1,124) Female 50.5% (1,145) ♀

Race & Ethnicity

White: 95.3%Hispanic: 0.1%Asian: 0.4%Other: 4.3%Race
White95.3%
Hispanic0.1%
Asian0.4%
Other4.3%

Age Breakdown

Under 5
1%
5–17
11%
18–24
9%
25–44
8%
45–64
43%
65+
13%

Key Indicators

Median Age56.5 yrs
Avg Household Size2.51
Below Poverty1.6% ▼ 84% below avg
College Grads60.5% ▲ 56% above avg
Unemployment1.3% ▼ 73% below avg
HS Graduate456 (25.9%)
Some College152 (8.6%)
Associates88 (5%)
Bachelors333 (18.9%)
Graduate Degree733 (41.6%)

Education

HS Grad: 25.9%Some College: 8.6%Associates: 5%Bachelors: 18.9%Graduate: 41.6%Edu
HS Grad25.9%
Some College8.6%
Associates5.0%
Bachelors18.9%
Graduate41.6%
Housing & Income

Housing Tenure

Owner: 97.5%Renter: 2.6%Tenure
Owner97.5%
Renter2.6%

Home Value Distribution

$150k–200k
2%
$200k–300k
11%
$300k–500k
32%
Over $500k
55%

Financials

Median HH Income$143,102 ▲ 88% above avg ↑ 52% since 2019
Median Home Value$572,900 ▲ 105% above avg ↑ 48% since 2019
Home/Income Ratio4.0x (nat avg ~3.5x)
Total Units2,494
Vacant Units1,592
Avg HH Size2.51

Income Distribution

$25k–50k
14%
$50k–75k
2%
$75k–100k
7%
$100k–150k
32%
$150k–200k
10%
Over $200k
35%
Employment & Commute

How People Get to Work

Drove Alone
81%
Work From Home
19%

Commute Time

Under 15 min
29%
15–30 min
16%
30–45 min
31%
Over 45 min
24%
Housing Stock

Year Built

Before 1940
1%
1940s–1950s
8%
1960s–1970s
15%
1980s–1990s
18%
2000+
58%

Summary

Total Units2,494
Vacant1,592
Owner Occupied97.5%
Renter Occupied2.6%
Avg HH Size2.51
Frequently Asked Questions
ZIP code 03810 is in Alton Bay, NH, in Belknap County.
ZIP code 03810 is located in New Hampshire (NH).
ZIP code 03810 is in Belknap County, NH.
ZIP 03810 observes the New York timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 03810 is 2,269 people (ACS 2023).
The median household income in ZIP code 03810 is $143,102 (ACS 2023).
The median home value in ZIP 03810 is $572,900 (ACS 2023).
About ZIP Code 03810

ZIP code 03810 is located in Alton Bay, New Hampshire, within Belknap County. With a population of 2,269, this is a sparsely populated ZIP code with an older community — the median age is 56.5 years. Economically, 03810 is a upper-middle-income ZIP code: the median household income of $143,102 is significantly above the national average.

Real estate in ZIP code 03810 represents a premium housing market. The median home value of $572,900 is more than double the national average. Homeownership is strong here — 97.5% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 48% since 2019.

The population of 03810 is primarily White (95.28%). Residents are highly educated — 60.5% hold a bachelor's degree or higher, which is significantly above the national average. Poverty affects a relatively small share of residents at 1.6%. Household income has grown by 52% since 2019.

The unemployment rate in 03810 stands at 1.3%, which is well below the national average. About 18% of workers are remote. As in most parts of the country, driving alone is the dominant commute mode at 74%.

Overall, ZIP code 03810 in Alton Bay, NH is characterized as upper-middle-income, highly educated, an older community, and predominantly owner-occupied. With 2,269 residents, a median household income of $143,102, and a median home value of $572,900, it offers a clear picture of life in this part of New Hampshire.