ZIP Code 03225
standardSource:
Center Barnstead · Belknap County · New Hampshire
- Population
- 3,660
- Median income
- $111,660
- Median home value
- $368,400
- Bachelor's or higher
- 30.4%
- Land area
- 75.6 sq mi
48/sq mi
▲ 46% vs US
higher than 87% of US ZIPs
▲ 32% vs US
higher than 76% of US ZIPs
Median age 43.2
New York
ZIP code 03225 in Center Barnstead, New Hampshire has a population of 3,660. The median household income is $111,660, which is 46% above the national average. Median home value is $368,400, 32% above the US average. 30.4% of residents hold a bachelor's degree or higher.
ZIP code 03225 is classified by USPS as a standard delivery area and covers roughly 75.6 square miles in Center Barnstead, Belknap County, New Hampshire. The area is home to 3,660 residents, producing a population density of 48 people per square mile, and falls within the New York time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 03225 against New Hampshire and the nation.
On the economic side, the median household income for ZIP 03225 sits at $111,660 (9% above the New Hampshire average), while per-capita income is $47,491. The poverty rate stands at 2.0% and the unemployment rate at 1.9%. On housing, the median home value is $368,400 (9% below the state average) with median rent at $1,355 per month, and 94.6% of occupied units are owner-occupied, a direct signal of whether 03225 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 30.4% of adults hold a bachelor's degree or higher, the median age is 43.2, and the average commute is 31 minutes. We also surface 9 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Belknap County, so you can benchmark 03225 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →
Top industries in ZIP 03225
Top 5 sectors by establishment count
Which industries have the most business establishments in ZIP 03225.
- Other services (except public administration)
Other services (except public administration)
13 establishments
- Construction
Construction
11 establishments
- Manufacturing 4
Manufacturing
4 establishments
- Retail trade 4
Retail trade
4 establishments
- Professional, scientific, and technical services 4
Professional, scientific, and technical services
4 establishments
What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, FHFA HPI for ZIP 03225, Center Barnstead, NH · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; HUD FMR + FHFA HPI updated quarterly/annually.
Quick Facts
3,660
Population
75.6
Area (sq mi)
48
People / sq mi
New York
Time Zone
standard
ZIP Type
Who lives in ZIP 03225?
43.2
Median Age
53.3%
Male
46.7%
Female
2.9%
Foreign-Born
Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How much do residents earn?
$111,660
Median Household Income
+9% vs state
$47,491
Per Capita Income
2.0%
Poverty Rate
1.9%
Unemployment Rate
30.9 min
Mean Commute Time
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
1,946
Total Housing Units
1,359
Occupied Units
587
Vacant Units
2.82
Avg Household Size
Occupancy Type
$368,400
Median Home Value
-9% vs state
$1,355
Median Rent
1985
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How have home values changed over time?
FHFA House Price Index, annual appreciation data based on repeat sales and appraisals
+3.8%
YoY Change (2024)
327
HPI Index (2000 = 100)
+227%
Total Change Since 2000
Home values in ZIP 03225 have increased 3.8% over the past year (2024). Since 2000, this ZIP has seen +227% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2020 | +6.5% | 209 |
| 2021 | +16.7% | 244 |
| 2022 | +18.3% | 288 |
| 2023 | +9.3% | 315 |
| 2024 | +3.8% | 327 |
Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.
What businesses operate in this ZIP?
Census Bureau data shows 51 business establishments in ZIP 03225, employing approximately 209 people with a combined annual payroll of $9,242,000.
51
Businesses
209
Employees
$9.2M
Annual Payroll
6
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Other services (except public administration) | 13 | 25.5% |
| Construction | 11 | 21.6% |
| Manufacturing | 4 | 7.8% |
| Retail trade | 4 | 7.8% |
| Professional, scientific, and technical services | 4 | 7.8% |
| Administrative and support and waste management and remediation services | 3 | 5.9% |
Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.
Nearby ZIP Codes
Want a side-by-side? Compare 03225 vs 03218 →
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 03218 | Barnstead, NH | 960 | 3.1 mi |
| 03809 | Alton, NH | 3,716 | 6.7 mi |
| 03263 | Pittsfield, NH | 4,114 | 5.7 mi |
| 03837 | Gilmanton Iron Works, NH | 1,519 | 6.3 mi |
| 03884 | Strafford, NH | 3,964 | 7.1 mi |
| 03261 | Northwood, NH | 4,246 | 10.1 mi |
| 03855 | New Durham, NH | 2,638 | 8.7 mi |
| 03237 | Gilmanton, NH | 2,254 | 8.7 mi |
| 03234 | Epsom, NH | 4,572 | 11.1 mi |
More ZIP Codes in Belknap County
Related Areas
Frequently Asked Questions
What county is ZIP code 03225 in? ▼
What is the population of ZIP code 03225? ▼
What is the median household income in ZIP 03225? ▼
What is the average home value in ZIP 03225? ▼
What is the demographic makeup of ZIP 03225? ▼
How many businesses are in ZIP code 03225? ▼
What are the main industries in ZIP code 03225? ▼
How have home values changed in ZIP code 03225? ▼
What is the education level in ZIP code 03225? ▼
What is the average commute time in ZIP 03225? ▼
What percentage of residents own vs. rent in ZIP 03225? ▼
What is the poverty rate in ZIP code 03225? ▼
ZIP Code Research Guides
Official Data Resources for Center Barnstead, NH
Verify and explore additional data for this area using these official government sources.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023). Business data: Source: Census ZIP Code Business Patterns (ZBP) 2023. Home value trends: Source: FHFA House Price Index (HPI), Five-Digit ZIP Codes.
PlainZIP is not affiliated with the U.S. Census Bureau or any government agency.
Read our methodology , how this data is sourced, computed, and verified.