US ZIP Code
03854

New Castle, NH

Rockingham County  ·  New Hampshire

● Active
👥 948 Population ↑ 14% since 2019
💰 $193,558 Median HH Income
▲ 154% above avg ↑ 42% since 2019
🎂 56.8 Median Age ↓ 8% since 2019
🏠 $1,612,700 Median Home Value
▲ 478% above avg ↑ 49% since 2019
🎓 80.5% College Grads
▲ 108% above avg
📊 0.0% Unemployment
▼ 100% below avg ↓ 100% since 2019
ZIP Code Details
ZIP Code03854
CityNew Castle
StateNew Hampshire (NH)
CountyRockingham County
Area Code603
Elevation21 ft
Latitude43.062147
Longitude-70.717071
TimezoneNew York (DST)
FIPS33015
ZIP TypePO Box
StatusActive
People & Population (ACS 2023)
♂ Male 51.9% (492) Female 48.1% (456) ♀

Race & Ethnicity

White: 96.6%Asian: 0.4%Other: 3%Race
White96.6%
Asian0.4%
Other3.0%

Age Breakdown

Under 5
4%
5–17
13%
18–24
3%
25–44
12%
45–64
32%
65+
11%

Key Indicators

Median Age56.8 yrs ↓ 8% since 2019
Avg Household Size2.16
Below Poverty3.7% ▼ 63% below avg
College Grads80.5% ▲ 108% above avg
Unemployment0.0% ▼ 100% below avg
No HS Diploma3 (0.4%)
HS Graduate33 (4.7%)
Some College20 (2.9%)
Associates80 (11.5%)
Bachelors55 (7.9%)
Graduate Degree507 (72.6%)

Education

No HS: 0.4%HS Grad: 4.7%Some College: 2.9%Associates: 11.5%Bachelors: 7.9%Graduate: 72.6%Edu
No HS0.4%
HS Grad4.7%
Some College2.9%
Associates11.5%
Bachelors7.9%
Graduate72.6%
Housing & Income

Housing Tenure

Owner: 91.6%Renter: 8.4%Tenure
Owner91.6%
Renter8.4%

Home Value Distribution

$100k–150k
2%
$200k–300k
1%
$300k–500k
3%
Over $500k
93%

Financials

Median HH Income$193,558 ▲ 154% above avg ↑ 42% since 2019
Median Home Value$1,612,700 ▲ 478% above avg ↑ 49% since 2019
Home/Income Ratio8.3x (nat avg ~3.5x)
Median Rent$3,453/mo ↑ 35% since 2019
Total Units517
Vacant Units78
Avg HH Size2.16

Income Distribution

Under $25k
8%
$25k–50k
6%
$50k–75k
3%
$75k–100k
13%
$100k–150k
7%
$150k–200k
15%
Over $200k
49%
Employment & Commute

How People Get to Work

Drove Alone
61%
Public Transit
1%
Walked
2%
Work From Home
37%

Commute Time

Under 15 min
49%
15–30 min
25%
30–45 min
11%
Over 45 min
15%
Housing Stock

Year Built

Before 1940
2%
1940s–1950s
5%
1960s–1970s
14%
1980s–1990s
15%
2000+
63%

Summary

Total Units517
Vacant78
Owner Occupied91.6%
Renter Occupied8.4%
Avg HH Size2.16
Frequently Asked Questions
ZIP code 03854 is in New Castle, NH, in Rockingham County.
ZIP code 03854 is located in New Hampshire (NH).
ZIP code 03854 is in Rockingham County, NH.
ZIP 03854 observes the New York timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 03854 is 948 people (ACS 2023).
The median household income in ZIP code 03854 is $193,558 (ACS 2023).
The median home value in ZIP 03854 is $1,612,700 (ACS 2023).
About ZIP Code 03854

ZIP code 03854 is located in New Castle, New Hampshire, within Rockingham County. With a population of 948, this is a sparsely populated ZIP code with an older community — the median age is 56.8 years. Economically, 03854 is a affluent ZIP code: the median household income of $193,558 is more than double the national average.

Real estate in ZIP code 03854 represents among the most expensive housing markets in the country. The median home value of $1,612,700 is more than double the national average. Renters can expect to pay around $3,453 per month in median rent. Homeownership is strong here — 91.6% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 49% since 2019.

The population of 03854 is primarily White (96.62%). Residents are highly educated — 80.5% hold a bachelor's degree or higher, which is more than double the national average. Poverty affects a relatively small share of residents at 3.7%. Household income has grown by 42% since 2019.

A notably high share of workers — 36% — work from home, reflecting the professional makeup of the area. As in most parts of the country, driving alone is the dominant commute mode at 59%.

Overall, ZIP code 03854 in New Castle, NH is characterized as affluent, highly educated, an older community, and predominantly owner-occupied. With 948 residents, a median household income of $193,558, and a median home value of $1,612,700, it offers a clear picture of life in this part of New Hampshire.