Center Barnstead, NH · standard
ZIP Code 03225
Belknap County, New Hampshire - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 3,660
- 48/sq mi Moderate-density area
- $111,660
- Median income Above-median income area
- $368,400
- Median home value Above-median home value
- 30.4%
- Bachelor's or higher Above-average bachelor's attainment
National ZIP placement
Center Barnstead pairs an upper-quartile household income with upper-quartile home values, in a rural, homeowner-dominated area.
- Top 13%
- household income, US ZIPs
- Top 24%
- home value, US ZIPs
- 48
- people per sq mi
- 95%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 03225 against every reporting US ZIP.
FHFA HPI release change
What changed in the latest House Price Index year
- FHFA House Price Index values in ZIP 03225 (Center Barnstead, NH) rose +3.8% from 2023 to 2024. The all-transactions index moved from 315.1 in 2023 to 327.1 in 2024 (2000 = 100).
ZIP code 03225 covers 75.6 square miles in Center Barnstead, Belknap County, New Hampshire (a standard USPS delivery area), with a modest 3,660 residents on file, a density of 48 people per square mile, in the New York time zone.
ZIP 03225 skews affluent, with a median household income of $111,660 (9% above the average New Hampshire ZIP), while per-capita income is $47,491. Both reported hardship measures are comparatively low in absolute terms: poverty is 2.0% and unemployment is 1.9%. Median home value is $368,400 (9% below the average New Hampshire ZIP) and median rent is $1,355; 94.6% of occupied homes are owner-occupied.
A solid share of residents have a four-year degree: 30.4% of adults hold a bachelor's degree or higher, the median age is 43.2, and the average commute is 31 minutes. The page also surfaces 9 ZIP codes within roughly 10 miles and 6 more in Belknap County, so 03225 can be compared with both its immediate and county-level context.
Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →
Top industries in ZIP 03225
Top 5 sectors by establishment count in Center Barnstead, NH
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 + FHFA HPI ACS demographics and median rent, ZBP business establishments, 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; 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 ZIP avg
$47,491
Per Capita Income
2.0%
Poverty Rate
1.9%
Unemployment Rate
30.9 min
Mean Commute Time
How ZIP 03225 ranks among New Hampshire ZIPs
Center Barnstead, NH household income vs. every New Hampshire ZIP code
Median household income among 236 reporting New Hampshire ZIPs (this ZIP's population is too small for a reliable national-corpus placement)
$111,660 Top 30% higher than 70% of 236 New Hampshire ZIPs
Each bar is a $20K-wide band; taller bars hold more New Hampshire ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023
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?
Housing stock: occupied vs vacant
1,946housing units
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 ZIP avg
$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 03225 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 03234
Epsom (03234)
4,572 residents
- 03261
Northwood (03261)
4,246 residents
- 03263
Pittsfield (03263)
4,114 residents
- 03884
Strafford (03884)
3,964 residents
- 03809
Alton (03809)
3,716 residents
- 03225
Center Barnstead (03225)
3,660 residents
- 03855
New Durham (03855)
2,638 residents
- 03237
Gilmanton (03237)
2,254 residents
- 03837 1,519
Gilmanton Iron Works (03837)
1,519 residents
What this shows Among its immediate neighbors, ZIP 03225 ranks #6 by population - useful context the national average alone can't give.
ZIP 03225 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 03261
Northwood (03261)
$129,375 median income
- 03884
Strafford (03884)
$122,105 median income
- 03837
Gilmanton Iron Works (03837)
$119,712 median income
- 03218
Barnstead (03218)
$112,500 median income
- 03225
Center Barnstead (03225)
$111,660 median income
- 03237
Gilmanton (03237)
$111,359 median income
- 03809
Alton (03809)
$106,397 median income
- 03855
New Durham (03855)
$100,194 median income
- 03234
Epsom (03234)
$97,941 median income
What this shows By household income, ZIP 03225 ranks #5 of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.
| 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 |
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 03225, both outside NH so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar population
Nearest cross-state ZIPs by resident population (3,660 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Belknap County
Related Areas
Frequently Asked Questions
What county is ZIP code 03225 in?
ZIP code 03225 (Center Barnstead) is located in Belknap County, New Hampshire. Belknap County contains multiple ZIP codes, see the full list at /counties/belknap-nh.
What is the population of ZIP code 03225?
ZIP code 03225 in Center Barnstead, NH has a population of 3,660 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 03225?
The median household income in ZIP 03225 is $111,660, which is 46% above the national average of $76,288.
What is the average home value in ZIP 03225?
The median home value in ZIP 03225 is $368,400, which is 32% above the national average of $278,155.
What is the demographic makeup of ZIP 03225?
The largest racial group in ZIP 03225 is White at 92.7%. Hispanic or Latino residents make up 1.1% of the population.
How many businesses are in ZIP code 03225?
ZIP code 03225 has 51 business establishments employing approximately 209 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 03225?
The top industries by establishment count in ZIP 03225 are: Other services (except public administration) (13), Construction (11), Manufacturing (4). There are 6 industry sectors represented in total.
How have home values changed in ZIP code 03225?
According to the FHFA House Price Index, home values in ZIP 03225 increased by 3.8% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 227%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 03225?
In ZIP code 03225, 57.6% of residents aged 25+ have a high school diploma or higher, and 30.4% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 03225?
The mean commute time for workers in ZIP code 03225 is 30.9 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend more time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 03225?
In ZIP code 03225, approximately 94.6% of occupied housing units are owner-occupied and 5.4% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 03225?
The poverty rate in ZIP code 03225 is 2.0% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.
Related
Take this with you
What to do with ZIP 03225's numbers, next.
- See how ZIP 03225 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Center Barnstead, NH ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
- Save this ZIP to your shortlist to track alongside others you're considering View your shortlist
ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.